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Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars |
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#1 |
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KAde auto ecu questions
I am considering putting an auto ECU on my m/t KAde because I have heard that there are some benefits. I have HEARD:
1. the auto ECU has a higher rev limit (whoopity doo) 2. it has no speed limiter (def bonus) 3. it has slightly different fuel/timing curves which gives it a bit more power My questions are: 1. Is all or even any of this true? 2. Does anyone have dyno numbers with both ecu's if it is true? 3. Will I have to screw with the wiring a bit to make it work and if so what do I have to do? 4. Is there any difference in the performance of the different years of ecu's? I have done some searching and I cannot find any info on these questions. Your help would be greatly appreciated, thanks. |
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#2 |
Leaky Injector
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![]() all i know is that the automatic ecu got rid of the speed governor in my car (single cam). i can have the speedo needle pegged against the bottom of the guage cluster.
i cant confirm anything else.
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#3 |
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Thanks, I was 99% certain that it would get rid of the governor. Anyone else? I know there are TONS of cheap asses like me that have done this or at least researched it.
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I've been running an auto ECU for a while now, and never noticed any more power. I did notice that the speed limiter is gone, itll rev a little past 7 if you want to, and the idle never dips when you push in the clutch.
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#5 |
Leaky Injector
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I found this with a little information on the subject that I hope helps you out. Hopefully someone can backup or refute the information;
http://www.zilvia.net/f/showthread.p...light=auto+ecu
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#6 |
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yea ive heard using the wrong ecu is super beneficial.....
im actually going to have an incorrect tune done on my ecu so my car goes faster
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#7 |
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Speed limiter removal is the ONLY gain, there's nothing else different between the two.
As for fitment, any 91-94 will cross over. 95 and 96 can swap, and you can use a 97-98 if you repin three wires. All these will throw a CEL of course.
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#8 |
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When I left my auto in it idled like crap with a manual trans but I think thats cuz I didnt wire in my neutral sensor... just get a tuned ECU if you wanna be safe and have no gov
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#9 |
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Neutral switch doesn't matter, it's simply to tell the ECU gear position. I never had one on my last car when I rewired it, the new one used to be auto and doesn't have it either.
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