March 5, 2009I re-adjusted the Mass-Air sensor to the 12 o''clock position. I changed the CTS and NO CHANGE. Was I supposed to disconnect the battery?
|1 |||2 |||3 |||4|
March 6, 2009Disconnect the battery, turn the lights on for 10 minutes to drain the current out of the line. Hook the battery back up. Crank the car and let it idle for a while.
Also, check the IAC valve (connects to the side of the throttle body, lets air through when the throttle body''s blade is closed.) You can clean them with carb cleaner.
March 6, 2009Also, check your TPS (throttle position sensor) Black piece with 3 wires on top of throttle body. The Green wire should have between .9 and 1.0 V @ idle. If it doesn''t, then loosen the screws and turn it until it reads in that range. You can check it with a Volt meter.
March 6, 2009And just a reminder.
I have that code reader if you want it, *or* you can get one at Advance *or* AutoZone for double what I am asking.
March 6, 2009I wouldn''''t think the TPS is the problem. The car runs amazing after you leave it idle for ten minutes. **or** it levels out if you force fuel into it by driving down the road. I''''m stumped. Morning startup is the issue.
P.S. I reset the computer to no avail. I grow tired of this issue. Am i destined to have this issue forever.
P.S.S. I''''m afraid to say this because of the million other problems I may have caused but, when I did my exhaust, my guy removed my o2 sensors.
March 6, 2009The front *or* rear O2''s? The rear once you can remove and use MIL''s, but you need the front once.
March 6, 2009Both were removed because the MAC Off Road connecting pipes did not fit the car properly. So my guy made my new pipes and removed the sensors.
March 7, 2009Uh, yeah - no O2 sensors is a pretty good way to screw up the computer, at all times and at all temperatures.
The only thing the computer can do is run from the tables, plus whatever adaptation happened since you last reset the computer. Unfortunately, without the sensors, it can''t adapt either. So, you''re getting some sort of default limp home mode that''s probably rich.
Have your exhaust guy weld in a couple bungs - should be cheap. They are readily available, and you can just put them where-ever they have to be to fit with the sensors. Ideally, they need to be the same length from the heads as stock, but in reality, put them anywhere you can and the result is better than no sensors at all.
March 7, 2009No front O2''s should ring a bell somewhere
March 7, 2009Did he say he had no O2''s upfront?
The ''86 (and the later 5.0 computers like he probably has now) all used only 2 O2 sensors - they didn''t have the rear O2s at all because they were OBD-I.
March 7, 2009I asked "Front *or* rear" and he said "both", so I just guessed the ''86 got front and rear.
So I now assume he does not have any O2''s on the car at all. That would cause a CEL wouldn''t it? At least make the computer go into "safe mode" / "limp mode".
|1 |||2 |||3 |||4|