Time it takes for ECU to "relearn"??

[Racerxjling]

I replaced my Dinan ECU w/ a stock ecu in a 92 NSX. The car is now misfiring slightly. It is driveable but it's "sputtering/misfiring" at both idle and light acceleration.

BTW, the car also has a CTSC/headers/exhaust/intake. I spoke to CTech...they actually suggested going back to the stock ecu from the Dinan.

I drove the car about 5 miles gently...still misfiring. How long does it take for the ecu to "learn"?

TIA

Jeff

 

[fangtl]

You can try to reset the ECM by pulling the negative battery cable or by removing the ECM fuse. Start up the car, and let the car idle for ~5 minutes.

 

[Racerxjling]

Thanks for the reply. I forgot that I did remove the neg. battery cable and let it idle for 15 minutes....then drove it 5 miles. I started it again today...no misifiring at idle and with 3k rpm free revs. I didn't drive it again though.

Jeff

 

[Jin1976]

Just did the timing belt service after 10 years. The engine is sputtering a bit. Where is the ECM fuse located?

 

[Larry Bastanza]

Front Fuse Box under hood, on passenger side, the only 7.5 amp fuse. (I recall it is the "clock" fuse, you can check in the online service manual)

HTH,
LarryB