The engine was recently rebuilt in my 93 z. Its a 355 with le2 heads and cam with 32# injectors and 255lph fuel pump and it was tuned by pcmforless. Now my question is why is fuel getting in the oil. The car was scanned and the car was coming up with dtc33 meaning map sensor with the 32s.. So we checked the valve lash and for vaccuum leaks and the fuel press regulator is brand new. Now with a vaccum pump hooked up and 24s in the car the map dtc went away and at idle map countss were 61-63 and no map trouble code was set. Now could this be that the tune is off because i know that i can not run 24s with this setup. I just dont want to mess up my new engine with all its brand new bearings. Oil press is still very gd and car is not blowing any blue so the rings must be seated. Thanks for any help.

 

well, it could be a host of things, but check for leaking injectors. make sure fuel isn't coming through the vaccum line in the fuel pressure regulator. this indicates a bad diaphram. the regulator is new, but check anyway.

 

i checked that line for the fpr and it was broken so that has been replaced. the injectors have also been checked for leaks but it does not happen with the ford svo 24s only with the 32 racetronix injectors.

 

Put your 24's in ,change the oil and filter and call PCMforless and ask about the problem ya are having. Don't run it with the cyl's being washed down with gas,the rings won't seat.