nissan chipping
0.0 BAR
Joined: Feb 2003
Posts: 0
Re: nissan chipping
Depends on the ECU. 90-94 300ZX, CA18DET, early KA24E (like, 89-90??) are EPROM. The later cars require an adapter board that requires an extraordinarily gay offset dual chip setup. www.bikirom.com had a USB multiboard in the works that looked exceedingly pimpy, allows you to reflash the ECU via USB cable, and is the route I would go.
Keep in mind, later OBD2 stuffs gets very wierd, the code itself is encrypted and the people in the know about them don't talk.
Keep in mind, later OBD2 stuffs gets very wierd, the code itself is encrypted and the people in the know about them don't talk.
3.0 BAR
Joined: Apr 2003
Posts: 2,260
Re: nissan chipping
JD... what's the scoop on KA24DE ECU chipping? I've been talking to Mike off and on, and he's given up(?). I he's got consult working... but no tuning. Only VG30s... are we missing something for out wanna-be drifter brethern?
0.0 BAR
Joined: Feb 2003
Posts: 0
Re: nissan chipping
Mike probably gave up because the 240 ******* are a bunch of whiny bitches and wouldn't do anything except hoard information. The 300ZX guys are wierdfuks, but they know how to stick together.
Lotsa Nismo code is cross-compatible. Sorta like OBD0 VTEC fuel and ignition formula are the same as OBD0 non-VTEC stuffs? Since we're dealing with a MAF system, as long as you get the correct MAF calibration table, injector size, and injector deadtime figures tweaked in a hex editor you are set. None of that ------- about cell by cell trying to deduce ideal (or more common - close enough) values for fuel and ignition.
Splice 300ZX turbo MAF tables into RNN14 or KA-stuff ECU, use appropiate injector scaling and deadtime values, and run the (turbo or non, same unit) 300ZX MAF. Pump gas engine management to 500 whp, and is a "universal" chip. In truth, things always need a little massaging when going for big power figures, but...
The data table locations are found on ztechz Forum with a little searching.
Lotsa Nismo code is cross-compatible. Sorta like OBD0 VTEC fuel and ignition formula are the same as OBD0 non-VTEC stuffs? Since we're dealing with a MAF system, as long as you get the correct MAF calibration table, injector size, and injector deadtime figures tweaked in a hex editor you are set. None of that ------- about cell by cell trying to deduce ideal (or more common - close enough) values for fuel and ignition.
Splice 300ZX turbo MAF tables into RNN14 or KA-stuff ECU, use appropiate injector scaling and deadtime values, and run the (turbo or non, same unit) 300ZX MAF. Pump gas engine management to 500 whp, and is a "universal" chip. In truth, things always need a little massaging when going for big power figures, but...
The data table locations are found on ztechz Forum with a little searching.
3.0 BAR
Joined: Apr 2003
Posts: 2,260
Re: nissan chipping
..so what about Toyotas? Had much work with those? I have a small projet going (http://www.ProjectAE86.com) and my motor is picked, and awaiting order. I'm just itching to break some new ground here...
0.0 BAR
Joined: Feb 2003
Posts: 0
Re: nissan chipping
No ------- clue about Toyotas. Some of the early EFI on, say, the ~85 Celica was just Bosch LH-Jetronic licensed for use by Toyota. Cold start injector + everything.
If it's more than just the similitude, there's LH-Jetronic code dumps and editors out there. Aside from lengthening the engine harness on a 3S-GTE swap, and basic maintainence on pickups and Forerunners in the bad old days, I have zero Toyota experience.
If it's more than just the similitude, there's LH-Jetronic code dumps and editors out there. Aside from lengthening the engine harness on a 3S-GTE swap, and basic maintainence on pickups and Forerunners in the bad old days, I have zero Toyota experience.
0.5 BAR
Joined: Apr 2004
Posts: 167
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