LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

help guys bunch of codes

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Old 10-05-2012, 02:32 PM
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help guys bunch of codes

hello guys
my car just threw bunch of code at me
i was doing a pull last night and one pull thats it. i was going 3rd to 4th and i felt the car just bugged out and felt like car just stopped. after that oil pressure gauge went down then i pulled to the side of the road and turned it off i opened the hood and looked under the car there was nothing under the car i started the car it was nothing wrong and started and drove normally.
Older problem in the car is the egr valve.
codes:
41 est open
36 high resolution pulse
48 mass air flow failure
32 egr system problems
46 vats fuel enable problem
18 injector circuit problem

btw the car has no check engine light it went a way after i turned of the car
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Old 10-06-2012, 11:48 AM
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Re: help guys bunch of codes

bump!
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Old 10-06-2012, 12:04 PM
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Re: help guys bunch of codes

Almost sounds like you had an intermittent ground problem. I'd look into the commonality of the ground circuits, but without knowing the year of the car, it's not realistic. Appears to be a 94 or a 95 based on the codes.

Why don't you add a "signature" with basic info about your car - year, model, engine, trans and any major mods. That helps us help you.

Couldn't help but notice that both of the people who posted above have similarities in their e-mail addresses???
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Old 10-06-2012, 01:29 PM
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Re: help guys bunch of codes

sorry injuneer it is 1995 z28 m6 5.7L
and the other poster is my cousin from AZ
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Old 10-06-2012, 01:37 PM
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Re: help guys bunch of codes

there is also one thing also wanna say that the egr is missed up with me and the wires on the injectors have some kind of pulse when i feel the wires
how can i check it or fix it?
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Old 10-06-2012, 04:41 PM
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Re: help guys bunch of codes

If the SES light is not on, those codes are not active. Clear the codes (pull "PCM BAT" fuse for 30 seconds) and see if any of then come back.

The injectors "pulse" when the operate. That's probably what you feel when you touch the wires.
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Old 10-06-2012, 10:40 PM
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Re: help guys bunch of codes

will do monday till get the computer to delete the codes
will let you know after that
thanks fred
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Old 10-09-2012, 01:33 PM
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Re: help guys bunch of codes

any news yanal?
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