o2 sensor problem
Thread Starter
On The Tree
Joined: Mar 2007
Posts: 137
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From: Austin, Tx
o2 sensor problem So I put a ls1/t56 in my '84 Z28 And it runs great....WITHOUT any o2 sensors plugged in. I deleted the rear o2's out of the computer and did not have my fronts plugged in, started the car and it runs fine. When I plug the front o2's in the car starts to sound like its missing. Anyone else with this problem? I attached my scanner and the short term fuel trims (STFT) are cutting a good amount of fuel even just sitting at idle, more so under load. I know the o2's are there to adjust fuel trims, but its leaning out to far. Its gone as far as cutting 46% from the trims at idle. Thats ALOT! Any ideas? I've put the car on a 4 gas analyzer and all the numbers are great (O2, CO2, CO, HC) All my sensors are good from the o2's to the TPS, MAF, MAP, ECT..Ive checked and doubled checked them all...just stumped. Maybe I just need to retune the computer eh? But the car only has a very small cam, nothing more. Any and all help appreciated! Thanks in advance.
