Hi guys, recently had the ecu go on my classic, replaced it but it seems to have lost power, it does have a unichip piggyback on it. Anyway when i put my foot down it accelerates slower and in every gear it loses all power just for a split second and then is back on. When i hit boost its fine and doesnt do it but it doesnt feel like its hitting as much boost as it should even tho my gauge is saying it is. It has even kangaroo hopped a couple of times when ive accelerated. Do i need to get it remapped again since i replaced the ecu or has anyone got any suggestions that i can try?
Thanks

 

does your engine check light work? i would connect the test wires and see if its stored any faults, i had the same problem, it flashed out as being the knock sensor, i removed and cleaned it and reset the ECU and as yet its fine, drives smooth with full power again.

hope this helps.

 

Yes my engine check light works, ill give that a try thanks bud

 

Ok, what year car do you have? (and which model).
Was the ecu a like for like swap?
Does your car have any modifications?

Tony

 

Its a 93 classic wrx mate (jap), i didnt do the swap over myself it was the local subaru scrappy that did it for me but yes i believe it was a like for like swap. Yes the car has alot of mods.... Fmic, ind kit, water inj system, close ratio gearbox, boost controller, uprated injectors etc...
Cheers