93 LT1 split BLM at idle
09-06-2016, 05:46 AM
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93 LT1 split BLM at idle in tunerpro RT i'm seeing closed loop idle BLM's of 108/160 L/R on cell 16. Injector pulse is something like 8mS on left, 12 on right.
I have replaced the oxygen sensors and they are both reading about 0.55V at idle, within 0.05V of eachother most of the time. The previous O2's were something like 0.25V and 0.5V on each side with a similar crappy BLM, IAC stepping count was about 24 when hot, not sure of anything else to test... fairly new to DIY and still learning
Leads are on the list of items to be replaced, one was loose a few weeks ago and caused a pretty foul misfire / backfire... or did it? went away after pushing them in some.
Stock TB, only changes are long tube headers + exhaust + one dead cat + intake.
I'm unsure of anything done to the engine internally, assume stock?
I have replaced the oxygen sensors and they are both reading about 0.55V at idle, within 0.05V of eachother most of the time. The previous O2's were something like 0.25V and 0.5V on each side with a similar crappy BLM, IAC stepping count was about 24 when hot, not sure of anything else to test... fairly new to DIY and still learning
Leads are on the list of items to be replaced, one was loose a few weeks ago and caused a pretty foul misfire / backfire... or did it? went away after pushing them in some.
Stock TB, only changes are long tube headers + exhaust + one dead cat + intake.
I'm unsure of anything done to the engine internally, assume stock?
Last edited by Hive; 09-06-2016 at 05:51 AM.
