Question about 1991 Chevrolet Lumina
Well sometimes it takes up to a 100 miles to the module to get things straight! Two many censers map ,maf , knock. cam,o2,and so on! Drive it for a bit and see if it will reconfigure it's self! My opinion I could be wrong! Good luck!!
Posted on May 18, 2014
Testimonial: "kinda what i thought,i felt it was from me messing with the iac.map sensor is fairly new.codes usually go away after clearing them out.do you have to reset the iac or will it reset itself?thanks for your advice."
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Posted on Jan 02, 2017
Hi! You must be frustrated by now! your code is marking that the O2 sensor is bad in bank 1. Did you replace the O2 sensor that is located before the catalytic converter? The S10 has an O2 sensor specially made for that cat. its about 30$ That would explain for your blackened spark plugs; your pc on the car is asking for more fuel. GOOD LUCK!!
Posted on Apr 29, 2009
If it was a stock rebuild the original PCM settings should be fine check all the fuses and wiring possibly something was damaged or left loose this stuff happens to the best of us.next the SES light needs to be reset with a scan tool make sure to record all codes stored in the computer as this will aid in diagnosing any problems. the car must be ran thru a drive cycle usually normal driving conditions of say a mix of city and highway driving until the PCM relearns all parameters like o2 sensors emissions sensors ect... this can also be checked with the scan tool in the readiness moniters these monitors will be reset every time the SES light is reset. when pumping the gas pedal 3 time you are just resetting the maintenance light.
Posted on Aug 03, 2009
Have you checked for vaccume leaks?
You've got lots of parts in there, Has the problem been the reason you have replaced all of those, or did it come up while doing some of the repairs?
Posted on Dec 18, 2009
check egr valve for vacuum leak. pull hose from manifold. put hose in your mouth like a straw and **** on it. if the valve moves, then it's good. if it doesn't, you need a new egr valve. WARNING, they are fricking expensive! auto zone price $204. NO JOKE
Posted on May 14, 2010
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