Hardware

Feature comparison against other manufacturer of ECUs

This is a comparison of the major differences (most important to the end customer) of well known or well respected ECUs. Other features are not compared since that is not the whole point of the comparison. If any other ECUs are not on the list, it means I am not familiar with them (eg: AEM, e-manage) or there are no useful comparisons (eg: Apexi and Microtech).

If there are any mistakes or further feature comparisons to be made, please send corrections via the feedback form or email address.

Feature HKS
F-CONV
LinkECU
LinkPlus
WolfEMS
V500
Autronic Vi-PEC
V88
Haltech MoTeC
M800
8 direct ignition drivers X
Free firmware and software upgrades X
Firmware upgradable by end-user X
ECU can be reset / unlocked without password X ? ? ? X
Software available to end-user X
Detailed changelog available to end-user X
Provides company-sponsored support forums X X (*2)
Provides online support / pre-sales contact info X X ? website footer
Integrated and internal VVT,AVCS controller X ✔ (*1)
Integrated and internal boost controller X
Integrated and internal barometric / MAP sensor X ? ? ?
Good software and logging interface X
Internal pull-up resistors for cam/crank sensor X
Manufacturer config reset / fw upgrade fee, depending on password protection system (correct as Feb 2012) AUD 300 NZ 74 (*3) ? ? ? N/A (*4) AUD 0
*1 - additional cost involved.
*2 - dealer network only.
*3 - not required to be done by manufacturer, only used for cost comparison purposes.
*4 - reset/overwrite can be performed by user.

One of the biggest technical design problems with the F-CON V is that it is not a true standalone (non-piggyback) ECU. It:
DOES NOT have software-controlled pull-up resistors for cam/crank sensors, required for optical-type.

Current ECUs

The following is a list of current ECUs sold and supported by HKS:
• HKS F-CON V Pro Gold v3.3 (Type A, E) [42012-KK001]
• HKS F-CON V Pro Gold v3.3 (Type B, E) [42012-KK002]
• HKS F-CON V Pro Gold v3.3 (Type A, J) [42012-AK004]
• HKS F-CON V Pro Gold v3.3 (Type B, J) [42012-AK005]
• HKS F-CON V Pro Gold v3.3 (Type CZ4A SST) [42012-KM001]
• HKS F-CON V Pro Gold v3.3 (R35 Spec, J) + VALCON II package [42013-AN001]
• HKS F-CON V Pro Gold v3.3 (R35 Spec, E) + VALCON II package [42013-KN001]
• HKS F-CON iS (Universal) [42011-AK003]
• HKS F-CON iS (Type IG) [42011-AK005]
• HKS F-CON iD (Universal) [42011-AK007]

Non-current ECUs

The following is a list of predecessor products that is now UNSUPPORTED by recent HKS tuners:
• HKS F-CON V Pro Gold v3.24
• HKS F-CON V Pro Gold v3.1
• HKS F-CON V Pro Gold v3.0
• HKS F-CON V (silver)
• HKS F-CON SZ
• HKS F-CON SA
• HKS F-CON S
• HKS PFC F-CON

Pinout diagram


HKS F-CON ECU pinout diagram ( PDF )

Sensor: Manifold Air Pressure (MAP)

Sensors - Manifold Air Pressure (MAP) - Comparison Various different make and model sensors can be used with HKS F-CON ECUs.

HKS use pressure equation: [ mmHg ] = (X / Y) * [ mV ] + Z

HKS1 MAP sensor is also known as denso 949940-6110.
HKS2 MAP sensor is also known as denso 949940-6400.
HKS3 MAP sensor is also known as denso 949940-6420.

Toyota2 software definition is also known as Apexi.

Toyota1 MAP sensors:
• JZZ30 1991-2000 - (Toyota# 89420-24040) (Denso 100798-2470)
• JZX90 1993-1996 - (Toyota# 89420-24040) (Denso 100798-2470)
• JZX81 1988-1992 - (Toyota# 89420-22140) (Denso 100798-2232)
• MA70 1989-1993 - (Toyota# 89420-14020) (Denso 100798-0890)
• JZA70 1989-1993 - (Toyota# 89420-14060) (Denso 100798-2261)
• JZA80 1994-1998 - (Toyota# 89421-12111) (Denso 079800-3250)
• SW20 1989-1993 - (Toyota# 89420-17030) (Denso 100798-????)
• ST185 1989-1993 - (Toyota# 89420-17030) (Denso 100798-????)

Nissan1 MAP sensor (25085-AA500) is used by:
• Nissan Skyline R34 GT-R (RB26DETT)
• Nissan Skyline R34 GT-T (RB25DET Neo)
• Nissan Stagea NM35 (VQ25DET)
• Nissan Silvia S15 (SR20DET)

Type Part # Denso Part # V @
101.3 kPa
PIM @
4.5 V
PSI @
4.5 V
PIM(kPa*100) Eq HKS(mmHg) Eq
Apexi (1.7 bar) 949940-6270 DPS-310-2000A 2.024 V 26432 24 psi (6585)*V - 3200 (1/2)*mV - 250
HKS1 (1.7 bar) 21202-006100 949940-6110 1.766 V 26318 24 psi (5921)*V - 326 (9/20)*mV - 25
HKS2 (2.5 bar) 21202-008100 DPS-310-2660A 1.000 V 35000 36 psi (7105)*V + 3025 (27/50)*mV + 230
HKS3 (3.0 bar) 4299-RA008 DPS-320-3000A 1.513 V 40000 43 psi (9997)*V - 4995 (3/4)*mV - 375
GM 3.0 bar 749 - 1.56 V 30000** 29 psi (6277)*V + 185 (47/100)*mV + 14
Defi - - 1.93 V 30346** 29 psi (7169)*V - 3706 (27/50)*mV - 280
ebay clone C1 (3.0 bar) - 1.470 V 40800** 44 psi (9351)*V - 3617 (7/10)*mV - 270
AEM "5.0 bar" 30-2130-75 - 1.286 V 51575 60 psi (12894)*V - 6447 (30/31)*mV - 480
EVO 8,9,X 1865A052 - 1.504 V 30264 29 psi (6720)*V + 23 (63/125)*mV + 2
Nissan1 25085-AA500 - 2.700 V 19000 13 psi (5000)*V - 3500 (3/8)*mV - 262
Toyota1 *See above* *See above* 2.653 V 19822 14 psi (5246)*V - 3785 (2/5)*mV - 300
Toyota (SW20) 89420-17050 100798-3330 2.251 V 25845 23 psi (6986)*V - 5592 (21/40)*mV - 420
Honda Fit / Jazz OEM OEM 2.829 V 16258 9 psi (3668)*V - 248 (11/40)*mV - 18
NOTE: ** - at 4.75 volts.
NOTE: PIM is absolute pressure, PSI is boost pressure.

Calculating PIM equation

It is possible to calculate the PIM equation if you do not have the specifications of the MAP sensor (eg: C1 chinese-designed MAP sensor). In my case, I've used a blitz boost controller and Apexi PowerFC to measure such values. Why the PowerFC you may ask? Because the MAP sensor can be connected up for reading purposes only. Alternatively, you can connect pin O (signal) and pin G (ground) to a multimeter, although the external boost controller is still required for reference measurement.

Steps:
• Connect both MAP sensors to ECU... with one known sensor (eg: Apexi PowerFC) and one unknown.
• With engine off, but IGN on, observe voltage.
• Under boost, measure voltage of both - and pressure of one - pressure sensors at the same time. This can be simulated by connecting MAP sensors to vacuum line and tyre.
• Use simultaneous equations to solve for M and C (PIM == M*V + C).
• SEQ1: 1.47*M + 1C = 10130
• SEQ2: 2.15*M + 1C = (6585)*2.99 - 3200 = 16489
• Solution: M = 9351, C = -3617.
• Equation: PIM == 9351*V - 3617
• Test the calculation: PIM == 9351*(1.47) - 3617 == 10000
• Maximum reading: PIM == 9351*(4.75) - 3617 == 40800 == 3.0 bar boost

Sensor: Temperature: Intake Air Temperature (IAT) and Engine Coolant Temperature (ECT)

Sensors - Intake Air Temperature (IAT) - Comparison An intake air temperature sensor is needed when intake temperature correction is used on vehicles that either do not have an intake temperature sensor or if the stock temp sensor has been removed.

If utilising "optional" IAT sensor, software parameter intake temperature input needs to be changed to PULL-UP, from normal.

The following is accepted by HKS PowerWriter Software:
• HKS (4603-RA001)
• Honda #1
• Honda #2
• Mazda RE #1
• Mazda RE #2
• Mitsubishi
• Nissan
• Subaru
• Toyota #1 (eg: JZZ30, JZX90, JZA80, JZA70, SW20, ST165, ST185, ST205)
• Toyota #2

HKS standalone: Vect = 5000 * Rect / (Rect + 1230) ; where 1230 ohm is HKS ECU voltage reference.

Toyota OEM ECU (JZ non-vvti): Vect = 5000 * Rect / (Rect + 2680) ; where 2680 ohm is OEM ECU resistance between ECT input and +5V.

To use with HKS in custom-made harness, units in mV:
Temp (C) -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130
Toyota1 ECT 4550 4399 4086 3719 3258 2865 2383 1982 1506 1279 1050 853 705 540 421 372
HKS IAT 4632 4433 4166 3831 3439 3011 2574 2157 1777 1449 1171 945 762 614 498 405
To use with HKS in piggyback (normal) mode [units in mV]:
Temp (C) -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130
Toyota1 ECT 4550 4549 4000 3353 2686 2020 1569 1255 1000 765 569 392 216 59 58 57
Toyota1 IAT 3413 3412 3363 2716 2245 1863 1490 1196 912 647 392 167 156 155 154 153
350Z ECT 4499 4317 4081 3810 3490 3104 2684 2261 1878 1532 1255 1027 852 511 386 ?
350Z IAT 4499 4317 4081 3810 3476 3076 2684 2278 2059 1839 1196 893 680 511 386 ?
Mitsubishi EVO9 ECT 4174 3870 3484 3035 2561 2101 1681 1329 1041 811 635 498 391 312 249 215
Measured (resistance) of temperature sensors [units in ohms]:
Temp (C) -20 -10 0 10 20 30 40 50 60 70 80 90 100 110 120 130
Toyota1 ECT 12437 9003 5499 3570 2300 1650 1120 808 530 423 327 253 202 149 113 99

Sensor: Airflow Meters

ECR33 ER34 NM35
350Z
Z32
mV L/min L/min L/min L/min
0 0 0 70 0
320 12 13 105 15
480 30 13 123 15
640 51 33 140 36
800 78 63 159 66
960 117 107 177 111
1120 168 169 191 177
1280 234 249 213 276
1440 318 350 293 402
1600 417 485 415 555
1760 534 631 525 747
1920 672 806 644 987
2080 834 1016 834 1275
2240 1026 1259 1060 1617
2400 1260 1541 1307 2022
2560 1527 1860 1562 2481
2720 1833 2219 1906 2997
2880 2193 2620 2369 3591
3040 2586 3066 2816 4254
3200 3024 3560 3281 4965
3360 3501 4102 3867 5811
3520 4035 4695 4497 6738
3680 4617 5341 5364 7758
3840 5289 6043 6147 8883
4000 6006 6808 6921 10128
4160 6840 7633 8215 11505
4320 7704 8520 9033 13005
4480 8655 9471 10234 14649
4640 9684 10489 11899 16425
4800 10794 11576 ? 18342
4960 11988 12733 ? 20412
5000 12435 13028 ? 20968

Injectors: Dead Time

List of injectors with injector lag (dead time) in milli-seconds, from official sources (HKS or Apexi)

JECS produces injectors for well-known aftermarket brands like Nismo, HKS, Tomei and Apexi and can be considered equivalent:

Injector Feed Imp Color Shape Apexi HKS Nismo Tomei Engine
JECS 480 cc Top High Purple Circle - 1402-RN011 16600-RR710 - RB25 (neo)
JECS 555 cc Side High Yellow Circle 404-N004 1402-RN008 16600-RR543 195012 SR20,RB25
JECS 600 cc Top Low Purple Rect 404-N003 1402-RN010 16600-RRR60 195015 RB20,RB26
JECS 740 cc Side High Red Circle 404-N006 1402-RN009 16600-RR544 195017 SR20,RB25
Toyota Supra 1JZ/2JZ non-vvti is an interesting case of inconsistent design:
• 1JZ-GTE non-vvti are high impedance (14.7 ohms in parallel == 6.9 ohms) but batched injectors.
• 2JZ-GTE non-vvti (JDM) are high impedance (14.7 ohms) but individual injection.
• 2JZ-GTE non-vvti (USDM) are low impedance (~2 ohms), require resistor pack, and individual injection.

NOTE: for high-impedance-only ECUs and low impedance injectors, aftermarket resistor pack on 1JZ (JDM) and 2JZ (JDM) would be different (5 ohms vs 12 ohms).
NOTE: high impedance injectors use denso connector (90980-11153), where as low impedance (USDM) use part number (90980-11154).

Vehicle Type Flow Feed Imp Color Shape
JZA80 2JZ-GTE (USDM) Individual injection 550 cc Low Pink/Purple
JZA80 2JZ-GTE (JDM) Individual injection 440 cc Side High Gray
JZZ30/JZA70/JZX81/JZX90 1JZ-GTE Batched injection 370 cc Side High Yellow
Even though HKS sources injectors from JECS, HKS do modifications to the injectors to improve overall performance / characteristics.

Denso injectors are also produced for SARD and Blitz.

Any information from injector-rehab (or based on such) is INCORRECT for high impedance setups.

Table: Injector dead time
Flow Brand Part No Description 8V 10V 12V 14V 16V
270 cc Nissan RB20DET Top Feed, High Imp, R32 1.316 1.132 0.952 0.772 0.604
370 cc Nissan RB25DET Side Feed, High Imp, R33 1.060 0.880 0.700 0.528 0.320
370 cc Nissan RB25DET R34 1.160 0.980 0.800 0.628 0.420
370 cc Nissan CA18DET S13 1.148 0.960 0.780 0.600 0.400
370 cc Nissan SR20DET PS13, RPS13, S14, S15 (auto only) 1.132 0.940 0.764 0.580 0.380
370 cc Toyota 1JZ-GTE JZZ30,JZX90,JZX81,JZA70 1.408 1.028 0.780 0.668 0.668
370 cc Toyota 1JZ-GTE JZZ30,JZX100 vvti 1.548 1.108 0.880 0.760 0.660
430 cc Subaru OEM MY01-05 2.048 1.720 1.350 0.933 0.514
440 cc Subaru OEM MY99-00 (440cc), MY97-98 (370cc) 1.850 1.071 0.852 0.683 0.514
440 cc Toyota 2JZ-GTE JZA80 (JDM), JZS147 (JDM) 2.048 1.288 1.068 0.928 0.728
440 cc Nissan RB26DETT Top Feed, Low Imp, R32,R33,R34 1.316 1.132 0.952 0.772 0.604
440 cc* Nissan SR20DET Side Feed, High Imp, Circle, Brown, S15 manual 1.162 0.940 0.764 0.580 0.380
480 cc HKS 1402-RN011 Top Feed, High Imp, Circle, Purple 1.972 1.166 0.776 0.483 0.274
520 cc Toyota 2JZ-GTE Side Feed, Low Imp, Circle, Orchid, JZA80 (USDM) - - - 0.760 -
550 cc Subaru EJ20* Pink, WRX STI MY01-05 1.953 1.276 0.922 0.680 0.458
550 cc HKS 1402-RZ001 Top Feed, Low Imp, Square, Purple 2.364 1.636 1.273 0.909 0.545
555 cc HKS 1402-RN008 Side Feed, High Imp, Circle, Yellow 1.795 1.179 0.830 0.584 0.403
440 cc Mitsu 4G63 EVO1,EVO2,EVO3 1.530 1.015 0.708 0.502 0.314
560 cc Mitsu 4G63 EVO4,EVO5,EVO6,EVO7 1.688 1.208 0.928 0.748 0.628
560 cc Mitsu 4G63 EVO8,EVO9 1.332 0.936 0.636 0.436 0.288
580 cc Mitsu 4B11 EVOX 3.934 2.356 1.719 1.317 0.990
600 cc HKS 1402-RN010 Top Feed, Low Imp, Square, Purple 1.508 0.853 0.598 0.402 0.227
680 cc HKS 1402-RZ002 Top Feed, Low Imp, Square, Blue 2.444 1.704 1.407 1.111 0.815
725 cc ID ID725 Injector Dynamics 1.975 1.355 1.040 0.795 0.670
740 cc HKS 1402-RN009 Side Feed, High Imp, Circle, Red 1.641 0.973 0.633 0.463 0.359
850 cc ID ID850 Injector Dynamics 2.280 1.540 1.145 0.910 0.730
1000 cc HKS 1402-RZ003 Top Feed, Low Imp, Circle, Sky Blue 2.400 1.800 1.400 1.100 1.000
1000 cc ID ID1000 Injector Dynamics 2.600 1.675 1.240 0.990 0.805
2000 cc ID ID2000 Injector Dynamics 1.455 0.950 0.680 0.495 0.375

Injection: Timing (start/end)

Each engine and intake manifold design (including where the injectors are located) have a preferred injection timing firing angle (BTDC) as to have the most consistent air/fuel mixture. Injection timing angle is more important the bigger the injector you utilise (eg: 2000cc on 2.0L engine).

The benefits of tuned injection timing is:
• better cold start.
• better off-boost throttle response.
• better fuel efficiency.
• reduced knock at high RPM.

Some further reading from external sources:
Adaptronic ECU forum.

Make Model Engine 0 500 1000 1500 2000 2500 3000 4000 5000 6000 7000 8000
Mitsubishi EVO1,2,3 4G63 428 435 437 447 454 465 475 489 496 503 510 516
Mitsubishi EVO4,5,6 4G63 413 416 420 423 427 430 434 440 447 454 461 468
Mitsubishi EVO7-8 4G63 400 402 404 406 412 418 424 435 447 459 470 475
Mitsubishi EVO9 4G63 397 397 397 402 412 421 430 436 442 448 454 460
Nissan R32 RB20DET 430 432 434 437 439 441 443 448 453 457 462 466
Nissan R33 RB25DET 430 432 434 437 439 441 443 448 453 457 462 466
Nissan R32,R33 RB26DETT 437 438 440 441 445 450 454 463 471 473 476 479
Nissan S13 SR20DET 454 455 456 458 460 462 464 468 472 477 481 485
Nissan S14 SR20DET 430 432 434 437 439 441 443 448 453 457 462 466
Nissan S15,S14b SR20DET 440 445 451 455 460 464 469 478 487 495 500 500
Nissan Z33 VQ35DE 359 361 362 375 389 403 414 425 432 438 445 448
Subaru MY99-00 EJ20 407 410 413 416 423 429 435 448 456 465 468 471
Subaru MY01-05 EJ20 382 382 385 388 395 404 414 429 433 437 441 444
Toyota JZA80 2JZ-GTE 395 397 400 406 412 419 425 441 446 449 452 455
For vvti applications, the 3D table (instead of 2D) would need to also take into account intake valve opening, which will be variable depending on engine load and engine RPM.

Example of 3D injection timing table (Toyota 2JZ vvti):


Another example of injection timing table (Nissan RB26DETT):


Ignition: Dwell Time

Conversion between dwell time (msec) and dwell angle can be made:
dwell time (usec)     == (dwell angle / 360) / (RPM / 60)

dwell angle (degrees) == (dwell time * 360 * RPM / 60)
It is unknown whether VQ35DE* dwell time is correct, as HKS does not use this as part of engine default.

It is advised that for engines (Nissan VQ38*, VQ35DE*, VQ25DET, and Mitsubishi 4B11) with unknown dwell times (Ignition Control => Main Close Angle Time) TO BE determined before tuning.

Dwell time can be indirectly determined (measured) with a digital multimeter in duty-cycle mode with OEM-only ECU connected. One of the ignitor wires will need to be temporarily extended to connect (tap-in) with the multimeter. Measure duty-cycle at 1000 RPM intervals, from 1000 RPM to 7000 RPM.

Table: Ignition dwell time
Make Engine Model 400 1000 2000 4000 6000 8000 Source
Mitsubishi 4G63 EVO5,EVO6,EVO7 7.917 4.167 3.500 3.042 - 2.521 Apexi
Mitsubishi 4G63 EVO1-9 3.560 3.500 3.283 2.856 2.479 2.105 HKS
Mitsubishi 4G63 EVO9 (OEM, high boost) 5.200 5.025 4.850 4.500 4.150 3.800 Custom
Nissan RB20DET R32 3.750 2.333 2.083 1.833 - 1.750 Apexi
Nissan RB25DET ECR33,ER34 3.750 2.333 2.000 1.791 - 1.708 Apexi
Nissan RB25DET R32,ECR33,ER34 3.225 3.134 2.982 2.678 2.374 2.070 HKS
Nissan RB26DETT R32,R33,R34 4.167 2.500 2.083 1.917 - 1.792 Apexi
Nissan RB26DETT R32,R33,R34 2.960 2.900 2.800 2.600 2.400 2.200 HKS
Nissan SR20DET S13,RNN14,RPS13,S14,S15 7.917 3.167 2.417 2.250 - 2.188 Apexi
Nissan SR20DET S13,RNN14,RPS13,S14,S15 2.970 2.900 2.800 2.600 2.400 2.200 HKS
Nissan VG30DETT Z32 3.456 3.108 2.782 2.521 2.260 2.000 HKS
Nissan VQ35DE 350Z 4.736 4.654 4.565 4.372 3.200* 1.600 HKS
Nissan VQ35DE(T) 350Z 3.500 3.400 3.200 2.800 2.400 2.000 HKS Petr
Subaru EJ20* GC8 (v1-6) 3.048 2.966 2.837 2.580 2.386 2.126 HKS
Subaru EJ20G GC8 (v1-2) 3.333 2.667 2.833 2.542 - 2.104 Apexi
Subaru EJ20K GC8 (v3-4) 3.333 2.667 3.000 2.667 - 2.146 Apexi
Subaru EJ207 GC8 (v5-6) 8.333 7.000 5.750 3.958 - 2.167 Apexi
Subaru EJ20* v7,v8,v9 3.000 3.000 3.000 2.300 1.900 1.900 LinkECU
Toyota 1JZ-GTE JZZ30,JZA70,JZX90,JZX81 4.167 3.000 2.417 2.500 - 1.896 Apexi
Toyota 1JZ-GTE JZZ30,JZA70,JZX90,JZX81 4.308 4.092 3.818 2.726 2.000 1.272 HKS
Toyota 1JZ-GTE JZZ30,JZX100 (vvti) 4.583 4.167 3.417 3.208 - 2.396 Apexi
Toyota 1JZ-GTE JZZ30,JZX100 (vvti) 5.009 4.070 3.430 3.010 2.525 2.213 HKS
Toyota 2JZ-GTE JZA80,JZS147 4.583 3.000 2.417 2.458 - 1.875 Apexi
Toyota 2JZ-GTE JZA80,JZS147 4.173 4.064 3.582 2.773 2.408 2.090 HKS Petr
Toyota 2JZ-GTE JZA80,JZS147 3.973 3.864 3.500 3.317 2.954 2.590 HKS
Toyota 2JZ-GTE JZA80 (vvti),JZS161 4.780 4.250 3.400 3.195 2.760 2.440 HKS
GM LS2 LQ9 4.088 4.088 4.088 4.088 3.693 3.222 GM ECU

Ignition: Spark plugs

One sometimes forgotten aspect of modifying engines is choosing the right spark plug. Choosing the wrong spark plug may cause misfire under high boost, or failure due to wrong temperature selection of the plugs.

Also be aware that buying via ebay, you may obtain counterfeit variants of genuine namebrand spark plugs. (eg: NGK here and here, Denso here) If it's too cheap to be true, then it is most certainly fake.

Table: Spark plugs
Make Engine Model stock boost 1.0 bar boost 1.3 bar boost 1.8 bar boost
Mitsubishi 4G63 EVO9 - Denso IKH22 Denso IKH24 Denso IKH27
HKS S45iL
Nissan VQ25DET Stagea (NM35) - Denso IKH22
NGK LFR6AIX
HKS M35iL
Denso IKH24
NGK LFR7AIX
HKS M40iL
Denso IKH27
NGK LFR8AIX
HKS M45iL
Toyota 1JZ-GTE
2JZ-GTE
Supra (JZA70,JZA80) NGK BKR6EIX-11 or BCPR6EP-11 or BKR6E Denso IK22
NGK BKR7EIX
HKS M35i
Denso IK24
NGK BKR8EIX
HKS M40i
Denso IK27
NGK BKR9EIX
HKS M45i
Table: Spark plugs - Heat range conversion chart
Make Heat range
Denso 16 20 22 24 27 31 32
HKS 25 30 35 40 45 50 52.5
NGK 5 6 7 8 9 10 10.5

Harness: Custom Nissan Skyline (R33) RB25DET

HKS Custom Harness - Nissan Skyline RB25DET David has created a custom-made direct-connection harness for the Nissan Skyline R33 RB25DET without utilising the OEM ECU in the mix, whilst retaining the AFM (which means no MAP or IAT sensor!). In other words, the HKS F-CON V Pro ECU is the only ECU connected, also controlling fuel pump, NVCS and idle solenoid. It was not an easy process to make work as it requires understanding which wires are needed, and which wires go where onto the HKS ECU.

Things to be aware of:
• Ignition and injection is in firing order. eg: 1-5-3-6-2-4 for #1,#2,#3,#4,#5,#6
• Cam/Crank sensor require external pull-up resistors as the sensor is optically driven.
• Additional relay is required to drive control of ECCS relay.
• AFM settings from above, which was converted from PowerFC (and confirmed working).
• NVCS works like this: OFF-ON-OFF where RPM for ON is ~2400 and OFF is ~4800, and NVCS INJ time set to 5500 uS.

Harness: Custom Toyota (JZX90,JZZ30) 1JZ-GTE

HKS Custom Harness - Toyota 1JZ-GTE David has created a custom-made direct-connection harness for the Toyota (JZX90,JZZ30) 1JZ-GTE without utilising the OEM ECU in the mix, but at the same time, fully controlling ISCV. It was not an easy process to make work as even documentation on how to make the ECU control the ISCV was not 100% correct in terms of corner case behaviour.

Things to be aware of:
• Ignition is in firing order. eg: 1-5-3-6-2-4 for #1,#2,#3,#4,#5,#6
• Additional circuit is required to emulate power delay-off as on OEM (and PowerFC) ECUs.
• ISCV max setting must be above 500, and ISCV min setting must be below 500.
• IGSW pin is required to be connected.
• Default crank injection needs to be multiplied by 2 (due to batch injection)
• Default none-phase injection needs to be _divided_ by 2 (due to batch injection)

Harness

Harnesses are interchangeable between ECU hardware, from the PRO version, to iS and SZ series.

Toyota
Harness Photos Engine Model Vehicle Year
TP5-1 [ 1 ] [ 2 ] 2JZ-GTE JZS147 Aristo 1991/10 - 1997/07
TP5-1 2JZ-GTE JZA80 Supra 1993/05 - 1997/07
TP5-2 1JZ-GTE JZX81 Chaser, Cresta, Mark II 1990/08 - 1992/09
TP5-2 1JZ-GTE JZA70 Supra 1990/09 - 1993/05
TP5-3 1JZ-GTE JZX90 Chaser, Cresta, Mark II 1992/10 - 1996/08
TP5-3 1JZ-GTE JZZ30 Soarer 1991/05 - 1996/07
TP5-4 3S-GTE ST205 Celica GT-FOUR 1994/02 -
TP5-4 3S-GTE SW20 MR2 1993/10 - 1999/09
TP5-5 1JZ-GTE JZX100 Chaser, Cresta, Mark II 1996/09 -
TP5-5 1JZ-GTE JZZ30 Soarer (VVT-i MT) 1996/08 -
TP5-6 [ 1 ] [ 2 ] 2JZ-GTE JZA80 Supra (VVT-i MT) 1997/08 - 2002/08
TP5-7 3S-GE SXE10 Altezza (Dual VVT-i) 1998/10 -
TP5-8 2JZ-GTE JZS161 Aristo 1997/08 -
TP5-8S 2JZ-GTE JZS161 Aristo (F-CON iS) 1997/08 - 2000/06
TP5-9 1JZ-GTE JZX110 Mark II, Verossa (VVT-i MT) 2000/10, 2011/07 -
TP5-14 1FZ-FE FZJ100 Land Cruiser
Nissan
Harness Photos Engine Model Vehicle Year
NP5-1-1 RB26DETT BNR32 Skyline GT-R 1989/08 - ????/??
NP5-1-1 RB26DETT BCNR33 Skyline GT-R ????/?? - 1998/12
NP5-2 RB25DET ECR33 Skyline 1993/08 - 1998/05
NP5-2 RB20DET HCR32 Skyline 1989/05 - 1993/08
NP5-2 VG30DETT (G)CZ32 Fairlady Z 1989/07 - 1998/09
NP5-2 RB20DE C34 Laurel 1993/01 - 1997/05
NP5-2 RB25DE(T) C34 Laurel 1993/01 - 1997/05
NP5-2 RB20DE(T) C33 Laurel 1993/01 - 1997/05
NP5-2 RB20DET A31 Cefiro 1988/09 - 1994/07
NP5-3 [ 1 ] [ 2 ] SR20DET S14 Silvia 1993/10 - 1996/06
NP5-4 [ 1 ] [ 2 ] SR20DET S15 Silvia 1999/01 - 2002/08
NP5-4 SR20DET S14 Silvia 1996/06 - 1998/12
NP5-4 SR20DET RPS13 180SX 1996/08 -
NP5-5 [ 1 ] [ 2 ] SR20DET RPS13 180SX 1991/01 - 1996/08
NP5-5 SR20DET PS13 Silvia 1991/01 - 1993/10
NP5-6 CA18DET S13 Silvia 1988/05 - 1990/12
NP5-6 CA18DET RS13 180SX 1989/03 - 1990/12
NP5-8 RB25DET ER34 Skyline 1998/05 - 2001/05
NP5-8 RB25DET WGNC34 Stagea 1998/08 - 2001/09
NP5-9 RB26DETT BNR34 Skyline GT-R 1999/01 - 2002/08
NP5-15 [ 1 ] VQ25DET NM35 Stagea 2001/10 -
NP5-16 VQ35DE Z33 Fairlady Z 2002/08 -
NP5-17 TB48DE WFGY61 Patrol 2002/11 -
NP5-18 VQ35HR Z33 Fairlady Z 2007/02 - 2008/11
NP5-18 VQ35HR PV36 Skyline 2006/11 -
NP5-18 VQ37VHR CKV36 Skyline (Coupe) 2007/10 -
Mitsubishi
Harness Photos Engine Model Vehicle Year
MP5-2 [ 1 ] [ 2 ] 4G63 CN9A EVO (IV, V, not GT-A) 1996/08 -
MP5-2 4G63 CP9A EVO (IV, V, VI, VII, VIII) 1996/08 -
MP5-3 6G72 (TT) Z16A GTO 1990/10 - 2000/07
MP5-5 4G63 CT9A EVO (VIII MR, IX) 2003/01 -
MP5-6 4B11 CZ4A(X) EVO X 2007/10 -
Mazda
Harness Photos Engine Model Vehicle Year
ZP5-1 13B-REW FD3S RX-7 1991/11 - 1995/12
ZP5-2 B6ZE NA6CE Eunos Roadster 1989/09 - 1997/12
ZP5-3 13B-REW FD3S RX-7 1995/12 -
ZP5-4 13B-T FC3S RX-7 1989/03 - 1991/10
ZP5-6 13B-MSP SE3P RX-8 (MT) 2003/04 -
Subaru
Harness Photos Engine Model Vehicle Year
FP5-1 [ 1 ] [ 2 ] EJ20 GF8 Impreza 1993/10 - 1996/08
FP5-1 EJ20 GC8 Impreza 1992/10 - 1996/08
FP5-2 [ 1 ] [ 2 ] EJ20 BG5 BD5? ? ?
FP5-3 [ 1 ] [ 2 ] ? BG5 / BD5 ? ?
FP5-4 EJ20 GC8, GF8 Impreza (STi III, IV, MT) 1996/09 - 1998/08
FP5-5 [ 1 ] [ 2 ] ? BE5 BH5 ? ?
FP5-6 EJ20 GF8 Impreza 1998/09 - 2000/10
FP5-6 EJ207 GC8 Impreza (STi V, VI, MT) 1998/09 - 2000/07
FP5-7 [ 1 ] [ 2 ] EJ207 GDB Impreza 2000/10 -
FP5-7 EJ205 GDA Impreza 2000/08 -
FP5-7 EJ20 SG5 Forester (MT, T/C) 2002/02 - 2003/12
FP5-7 EJ208, EJ206 BE5 Legacy B4 2001/05 - 2003/04
FP5-7 EJ208, EJ206 BH5 Legacy Wagon 2001/05 - 2003/04
FP5-8 EJ20X, EJ20Y BP5 Legacy Wagon 2003/04 - 2006/04
FP5-8 EJ20X, EJ20Y BL5 Legacy B4 2003/04 - 2006/04
FP5-9 EJ207 GRB Impreza 2007/10 -
FP5-9 EJ20X, EJ20Y BP5 Legacy Wagon 2006/05 - 2009/04
FP5-9 EJ20X, EJ20Y BL5 Legacy B4 2006/05 - 2009/04
FP5-10 EJ25(TURBO) BR9 Legacy Wagon 2009/05 -
FP5-10 EJ25(TURBO) BM9 Legacy B4 2009/05 -
Honda
Harness Photos Engine Model Vehicle Year
HP5-1 B18C DC2 Integra Type-R 1995/09 - 2001/06
HP5-1 B16A EK4 Civic 1995/09 -
HP5-1 B16B EK9 Civic 1997/07 - 1998/08
HP5-2 [ 1 ] B16A EG6 Civic 1991/09 - 1995/08
HP5-3 F20C AP1 S2000 1999/04 -
HP5-5 K20A DC5 Integra Type-R (V Pro V3.12+) 2001/07-
HP5-5 K20A EP3 Civic Type-R (Pro V3.12+) 2001/12 -
HP5-10 LEA-MF6 ZF1 CR-Z (6MT, F-CON iS) 2010/02 -
Daihatsu
Harness Photos Engine Model Vehicle Year
DP5-1 JB-DET L880K Copen 2002/07-

Pinout diagram: Other

Toyota Chaser (JZX90) / Soarer (JZZ30) - 1JZ-GTE non-vvti

Toyota Chaser (JZX90) / Soarer (JZZ30) - 1JZ-GTE - pinout ECU diagram
Toyota JZX90 pinout ( png | pdf )

Toyota Supra (JZA70) / Chaser (JZX81) - 1JZ-GTE non-vvti

Toyota Supra (JZA70) / Chaser (JZX81) - 1JZ-GTE - pinout ECU diagram
Toyota Supra JZA70 pinout ( png | pdf )

Toyota Supra (JZA80) / Aristo (JZS147) - 2JZ-GTE non-vvti

Toyota Supra (JZA80) / Aristo (JZS147) - 2JZ-GTE - pinout ECU diagram
Toyota Supra JZA80 pinout ( png | pdf )

Nissan Skyline GTS-T (ECR33) - RB25DET

Nissan Skyline GTS-T (ECR33) - RB25DET - pinout ECU diagram
Nissan Skyline GTS-T ECR33 pinout ( png | pdf )

Nissan Skyline GTR (BNR32,BCNR33) - RB26DETT

Nissan Skyline GTR (BNR32,BCNR33) - RB26DETT - pinout ECU diagram
Nissan Skyline GTR BNR32,BCNR33 pinout ( png | pdf )