Carpartsguy

i have a p2p ecu and stock wiring harness codes are p0453,po450,po505. i need to pass state emissions test for inspection need help!

vtecn8ive

it'd be easier if you could write out what those codes are actually.

Hapexamendios

lol, that username ******* cracks me up, i guess its no better than having chassis code and engine codes like everyone else..

EE_Chris

P0450/0453 deals with the FTP sensor. Your 97 Dx coupe may not have come equipped with a FTP sensor. All P2P ECUs do look for the FTP sensor though. How do you fix it - good question. Short of using an ECU that doesn't look for the FTP or to install the FTP and all associated plumbing, there isn't much of an option here.

P0505 deals with the IACV. Are you using your stock Dx engine harness? Did you perform the IACV connector fix/pin swap at the ECU?

Please try and post up more info instead of having people search around for it. Not a lot of people know the P codes so don't post up P0453 and not post up what it actually is. Also, P2P - while a lot of people know that it is the Ex ECU, some don't. Make that info known so people can help you more effeciently.

Carpartsguy

will the megasqurit help my problem by the way iac valve fixed

EE_Chris

Mega-Squirt isn't OBD2. You will never pass smog with it since you're OBD2 and require the scanner to talk to the ECU to confirm things are in check.

Carpartsguy

if this was ur car what combination would u use? since i already have this engine in this car. different ecu? conversion harness to obd? or use something else? i guess what im triing to say is how can i get the best performance out of this setup?

EE_Chris

If you're asking what I would do - I wouldn't have done that particular swap. Knowing that I've got to be OBD2 compliant (I own a 99 hatch), I'd stay that way. So if I dropped in a B16A2 (from the 99-00 Si), I would be using the Si ECU. It would plug directly into my engine harness and since I've got all the emissions crap that the Si ECU is looking for, I should be mint.

I can't make the same recomendation to you because your car didn't come equipped with the FTP - which the Si ECU is looking for. You can't trick the ECU into thinking the FTP is there.

So honestly, I'd drop the stock motor and all stock components back in, go and pass state inspection so you're free and clear for another 2 years and then drop this motor back in. Then you can run a chipped OBD1 ECU (with jumper harness) since you're looking for performance. Not being familiar with the Del Sol, I do know it came with the B16A3 is some years. If that ECU is OBD1, you can try that too.

I know this isn't what you wanted to hear, sorry bro.

Carpartsguy

hey man i apprecitate ur ur info. iknew id have problems just not this bad. i would like to know which obd1 ecu u suggest? (for conversion). by the way its a dx coupe with stock 97 harness and i already sold the crap dx engine and tranny but i have friends with inspection lic. and i think i can take care of the emission sticker prob. ive heard to use a p72 p30 and p28 and performance wise dont which is best for my setup.

thanks for ur help