Okay guys i could really use some help right about now. I did a 2.7i swap on my 90' 325is... refreshed head with a 3 angle valve job, ie billit 272 cam, hd rockers, and flow tested 19lb injectors, on a stock computer.
Initial fire up there was a miss but turned into a near miss. I have checked fuel pressure and im in the 44lb range, pulled each plug wire and did notice a significant change, checked for vacuume leaks.
The inital problem i was trying to diagnose was the near miss, after washing my engine bay i noticed a hard miss. it is still inconsistant and is not theyre durring the open loop phase. Even durring the closed loop phase it comes in and out more so under heavy load. I later found water in the four prong connector for the o2 sensor blew it out clean and dried it. Did not make a difference.
Im thinking it may be the temp sensor...? Is there anything obviousi am missing here? I was told it should not run like dog shit w/o a tune but i wont get much gain w/o it....
Initial fire up there was a miss but turned into a near miss. I have checked fuel pressure and im in the 44lb range, pulled each plug wire and did notice a significant change, checked for vacuume leaks.
The inital problem i was trying to diagnose was the near miss, after washing my engine bay i noticed a hard miss. it is still inconsistant and is not theyre durring the open loop phase. Even durring the closed loop phase it comes in and out more so under heavy load. I later found water in the four prong connector for the o2 sensor blew it out clean and dried it. Did not make a difference.
Im thinking it may be the temp sensor...? Is there anything obviousi am missing here? I was told it should not run like dog shit w/o a tune but i wont get much gain w/o it....
Comment