getting too much fuel?
#3
the car randomly started to not wanna start and run like ****. i popped the first two injectors on it and cranked it over and it was dumping fuel like i was takin a ****. and it fouled out a set of plugs put new plugs in and started barely. the car was tuned a year ago everything in the fuel system is stock.
#4
also no codes have come up and it ran good then got worse and worse and then it would not start. i swapped plugs in it and it started but only when i had the throttle to the floor. im pretty sure my maf and o2s are functioning correctly. once it runs i can see the fumes and smell gas from the pipes and it just has no get up but it doesnt miss. i am going to hook check the fuel pressure tomorrow.
#5
TECH Addict
iTrader: (1)
Lots of stuff....I had similar issues that were caused by a combination of a bad coolant temp sensor (tells PCM it's ALWAYS -40 degrees outside and PCM dumps fuel) and leaky headers causing bad O2 readings.....which also makes the PCM dump gas like crazy. So, check coolant temp sensor, O2 sensors could be bad, MAF can also cause this, and potential exhaust leaks also need to be investigated. Possibly fuel pressure regulator? What mods have you done to it?
#7
Post what you find.
Worked on tuned port 350 yesterday that had 110 PSI on the rail. The regulator's pin was bent over. Don't ask me how, but that's what I found. It was running rich and somehow showed no codes??
Al 95 Z28