My swap is done...welll almost.

Heres the problem and hopefully you can figure it out.

The engine is in and running, but it won't idle off of the P13 ECU I have, and it runs rich while running off that ECU.

The engine is a 98 H22A4 and as I said the ECU is a P13 ECU from a 92 Prelude. Everything else on the engine has stayed except for the OBDI conversion.

As far as we know (we have checked a few times now) all the wiring is straight and the correct pins have been jumped.

The car runs fine on my F22 ECU but not on the Prelude ECU....any clue why this would be?

 

Oh yeah in case you couldn't tell by engine code it is a USDM motor.

 

Thanks for all the replies

It turned out to be a simple wiring mixup. Turns out he miscounted the pin settings and had a wire in the wrong location.

Pics to come soon (probably this evening)

 

how did you fix this what was the wrong wire you had wrong?

Im having the same problem, my ECU didnt let me REV past 3000RPM..

turned out to be faulty... but my car wont idle properly

 

u also got to post what year accord it is...and the HS hybrid forum will get you faster replies about accords than this one will.

 

its in my signature

im gonna go and test the EGR solenoid wiring

i dont remember switching pins A6 and A11 so this could be the problem..

gonna go check the vacuum lines as well

 

sorry wsa referring to the first guy.


check the a6 and a11 first thats the most common thing.

vacuum is pretty straight forward as well.

 

hmmm.....I hear you have to change the injectors on the engine. I believe the injectors on the 98 USDM H22A4 are saturated. Since you're running an ecu intended for peak and hold injectors, you may burn the ecu out. Or, it may be the other way around, peak and hold injectors will burn out a saturated ecu....something like that.

 

You are right the peak and hold will burn out the saurated injectors and also 97 and up prelude motors have saurated injectors and you need to have either stock 92-96 prelude injectors or aftermarket 370 cc peak and hold with a Vafc to control it.

Accordhybrid