Hello all,

Little issue I've noticed with the CRX. D15b2, D15b7 intake (mpfi swap), stock pm6 ecu.

I've noticed a rough idle with an occasional sputter after being warmed up, and today I noticed a fair amount of smoke. It is 60 degrees out, I can't even see my breath, so this alarmed me.

I know the car will not run without the IACV, so I could chalk the low idle up to that, but still sputters (as seen in the video). The smoke doesn't smell like coolant, but just plain stinks. I've also heard that PM6 on D15b2 would run rich, but I don't know.

The only change I've made is some cheap exhaust system to replace my stock system that rusted through. I have a leaky valve cover gasket, so I would assume any oil loss is from that.

Is this something to worry about? Or is it just a result of the new exhaust? (Which, for all intents and purposes is just metal tube with nothing else in it. No cat or anything. I am a broke college kid, what can I say? Lol.)

 

Pull all your spark plug and take some good pics of them.
While all the plugs are out, do a compression check and come back with numbers.