Coming to the experts on this one.


As you all know.....gas prices suck.....

I'm currently driving a 94 Accord lx auto........simple...slow....stock. Currently running a stock ob1 ECU....P0A I assume.


I happen to have a spare P06 ecu from a dx civic laying around....I know the p06 is easily chipped...but my question is would i be able to run the stock P06 ecu in my accord? Being unfamiliar with the fuel and timing tables of both ecu's i'd assume the p06 would call for a leaner tune (being 1.5l as opposed to 2.2)? Would this be possible to run on my car?

Keep in mind....i have no intentions of speed. I do 95% highway miles and rarely push the pedal more than 1/8....



Spark Notes: Can I run a stock P06 ecu in my stock accord for better gas mileage with no ill effects?


Edit: I realize I'll have to swap 2 pins....I'm just talking about the basemaps.

Thanks.

 

I'm no expert, but wouldn't the Civic ECU just inject more fuel after it got a "lean" reading from the O2 sensor? I'm pretty sure that's the way they work. If it's a hot day, the ECU will get a reading from the IAT sensor, and with air density to temperature ratios stored in it's memory, the new algorithm will cause the car to inject less fuel. If it's a bigger engine on the Civic's ECU, the O2 sensor will read excess oxygen (Lean Condition) then it will make the mixture more rich by injecting more fuel. The fact that the IAT is reading one thing, but the O2 another may cause the ECU to go into safe mode and worry about the IAT sensor. Besides...lean, not necessarily a good thing. It's not like stock maps run pig-rich, they're only slightly rich for saftey concerns.

My guess is no, it wouldn't work.

I had a member on another forum try this and fail miserably. Granted, he was convinced that changing the ECU would allow him to get higher compression... Yeah, baffles me too.

 

hmmm, thanks for the quick response....

Ya, i hadn't considered that.

I suppose if i wanna mess with it, the best route would be to correctly chip the ECU and get a proper tune.