Question about 1993 Chevrolet Lumina
A couple days ago I notice my car just cut off while I was driving it never did this. So I went had my friend change the oil & spark plugs and wire. he also put a gas treatment in my car. Well since he's done all that. now when I crank it Engine light automatically comes on & it will run a second & cut off. I crank it back & it will stay on for a while put sound like it will cut off. I'm scared that while I'm driving it will cut off.
If that light comes on, you should take it to a big autoparts store and they can give the code for why the light is on. They do this free. Then you can have some idea what is wrong. The problem is most likely related to the intake manifold and something akin to the EGR.
Posted on Feb 14, 2014
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Posted on Jan 02, 2017
SOURCE: Check Engine light
the computor sees one of the engine sensors out of range if you take the car to advanced auto parts or simmular place they can pull the codes then write back with codes and we can help you figure the problem out
Posted on Oct 07, 2008
SOURCE: PO420 CODE ON CHEVY S10
The code means---
Please make sure there is no air entering the engine behind the maf, such as a vacuum leak or leaks in ducting between the maf and the throttle body.
If that's no the case then its an issue with injectors clogging and they are not working due to "fretting". This "fretting" is electrical terminals to injectors getting oxidation on them and is fixed by unplugging them and replugging them in. The fix is to put a small dab of die-electric grease on the terminals.
I would suggest an injector service with the new GM procedure using "Top Engine Cleaner". This may be all you need but that P0420 bothers me. P0420, Catalyst System Efficiency Below Threshold, can be set by a poor connection at the PCM or a damaged wiring harness.
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Posted on Mar 01, 2009
make sure the gas cap is on tight. vapor recovery system depends on the closure of the gas cap. if that did not solve your problem, I would suggest to get a new gas cap first, before going to the dealer or any repair shop for a turn-up.
Posted on May 28, 2009
SOURCE: wont keep idle, car stalls out
I had this same problem on my 2005 monte carlo, took mechanic a while to figure out it was the idle air control valve. They also replace the idle air control motor.
Posted on Jun 05, 2009
SOURCE: OIL PRESSUE LOW
At some point, your engine is registering low oil pressure and warning you the oil pressure is insufficient to lubricate the engine properly.
How does the engine know this? What causes it? Excellent questions. The engine 'knows' this because there is one or more sensors that read the oil pressure all the time. The sensors report to the computer which reports to you. They could be faulty. On the other hand, there could be times when oil pressure IS low. Your oil pump may be mal-functioning. Normally, I would expect the oil pump to either do its job properly or NOT do it properly but not act intermittently. It may warrant being checked by a professional. Another reason for this condition could be the oil itself, though you report you just had it changed. Presumably, whom ever did the change put in the proper oil grade, service and weight, recommended by GM.
Another thought, is this warning seen by you immediately after you start the car? If yes, it is normal for oil to take a second or two to build the proper pressure, particularly in cold weather. Where I am at, it is cold. Oil doesn't like to move when it is cold (like me) so it takes a bit of time to get up pressure (like me).
If this continues, you may want to have this problem looked at by a professional, as I said.
Thanks for your interest in FixYa.com
Posted on Feb 18, 2010
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