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Hey I have a 1993 chevy lumina apv 3800, My problem is we will be driving and the car will stall and not start for between right away and an hour. I've done a complete tune up gaped the plugs to p

I've done a complete tune up gaped the plugs to proper gsap and all. I've replaced the ignition moduel, coils with brand new parts also a new throttle positioning sensor mass airflow sensor egr valve. LMAOOO I've covered all I can think of. I've also checked the ground under the ignition moduel that seems to give every one issues! I'm lost I need some help. Oh by the way I have a new ecm on the way!!! anything you can think of? I'm also getting a low fuel gauge voltage code coming up when I jump the comp paper clip style! check engine light is on so I've went through the process of seeing what it thinks is wrong with itself. thanks for any input.

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  • William Main Nov 05, 2012

    Ive replaced the EGR Gasket when the EGR was replaced for additional imfo, also thats a low voltage at the fuel pump not gauge lol.

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  • Cars & Trucks Master
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Crankshaft position sensor ?

Posted on Mar 28, 2017

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  • 60 Answers

SOURCE: 1992 Lumina Backfire - I

I know you mentioned the EGR valve has been replaced, but you may have a bad 'new' part. I know the car is electronic, but has anyone checked its ignition timing (timing belt been looked at, I know it only has 77k on it). Is the fuel pressure regulator OK and it vacumm supply?

Posted on Nov 15, 2010

  • 97 Answers

SOURCE: 1996 isuzu rodeo keeps reading

A misfire alarm typically means the coil pack mounted above the sparkplug indicated in the misfire had gone defective.

To test it, swap the coil pack with another cylinder, and see if the misfire goes from #2 to the cylinder you put it on.

If the misfire continues to be on #2, then consider changing the sparkplugs.

I hope this helps.

Posted on May 15, 2011

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