Cascade Crew

sheltonw3

last night I was out with a friend in his car a 91' 3.1 and the car dropped power and stalled out and there was no service engine soon light and prior to this we had the hood open and noticed during warm up the EGR valve shot a couple of sparks and surge up a bit and it smoothed itself out and ran nice and then 30 minutes later across town it dies and to make matters worse the EGR works with the ECM and we had no heat for 3 hours waiting for the slowest ever tow truck to pick us up!...

so right now we both have no money til later in the month and I am wondering if the digital EGR can be reconditioned or does it have to be replaced with a new one??

I checked all fuses and they are all good, no burned fusible links, the alternator is still fairly new, the car cranks but no turn over and no S.E.S.!

thanks in advance!

chevymad · Posted: Sat Dec 31, 2011 7:33 pm Post subject:

Should run with an SES light on.. if you just unplug it. Otherwise there's some other issue, or it has caused another problem.

aaron_sK · Posted: Sat Dec 31, 2011 7:37 pm Post subject:

Does the SES light blink very briefly and then stay lit with KOEO?

Has the car been sitting for awhile? Or sitting outside in the rain?

sheltonw3 · Posted: Sat Dec 31, 2011 9:42 pm Post subject:

sheltonw3 · Posted: Sat Dec 31, 2011 9:46 pm Post subject:

aaron_sK · Posted: Sat Dec 31, 2011 10:23 pm Post subject:

sheltonw3 · Posted: Sat Dec 31, 2011 10:38 pm Post subject:

Too late now and toooo cold , gotta wait til tomorrow to look.

Al Hasse · Posted: Sun Jan 01, 2012 12:47 am Post subject:

sheltonw3 · Posted: Sun Jan 01, 2012 2:51 am Post subject:

Like I said the SES light is not coming on at all!... the car cranks ,but no turn over, I am starting to wonder if the ECM just took a dump instead?...won't know til tomorrow and Might try disconecting the battery and waiting a mintue and see if there is any change there.

91RSVert · Posted: Sun Jan 01, 2012 9:01 am Post subject:

I ran my 3.1 with NO EGR at all, wasnt even bolted in.

Something else is wrong. fuel pump, coils, something. But egr will not keep it from running unless its cracked so bad its creating a vac leak of bibilical perportions.(lots of spell check in that line)

Al Hasse · Posted: Sun Jan 01, 2012 9:06 am Post subject:

Just a thought. Try removing the O2 sensor and see if you can get it to run. I had a plugged up cat once, and instead of killing the motor, the pressure blew the EGR riser right off the manifold. Never did throw a code. Removing the O2 sensor should give exhaust somewhere to go if the cat got plugged. Replacing a cat doesn't cost as much as that EGR.

aaron_sK · Posted: Sun Jan 01, 2012 9:49 am Post subject:

C'mon you guys, the ECM isn't triggering the fuel pump relay or the CEL. That means it's fried or it's not getting power. He can unplug and test sh*t till he's blue in the face and it won't help anything.

chevymad · Posted: Sun Jan 01, 2012 12:23 pm Post subject:

I was just trying to demonstrate to him that its not the EGR valve lol. When someone gets something in their mind, sometimes they wont listen til they see it cant be for themselves.

aaron_sK · Posted: Sun Jan 01, 2012 12:26 pm Post subject:

I got ya, B. My comment was more directed at the vacuum leak and O2 suggestions. Not that those are wrong but he's got bigger issues. Cool

BluFbdy · Posted: Mon Jan 02, 2012 9:30 am Post subject:

Is it possible the bulb is burnt out? I'd check that before hunting down a new ecm lol

Twilightoptics · Posted: Mon Jan 02, 2012 11:12 am Post subject:

BluFbdy · Posted: Mon Jan 02, 2012 2:34 pm Post subject:

Whoaaaa how does that make me stupid? Regardless of function a bulb is still a bulb lol I'm personally a fan of going from easiest to hardest when it comes to fixing something or you can just throw parts at it lol

Al Hasse · Posted: Mon Jan 02, 2012 3:03 pm Post subject:

BluFbdy · Posted: Mon Jan 02, 2012 3:16 pm Post subject:

chevymad · Posted: Mon Jan 02, 2012 3:21 pm Post subject:

One more thing with that simple idea. I'm not sure how you checked fuses, but if you just looked at them then please check them again with a test light or meter. Many times a fuse will not appear to be burnt but is. A test light is an easy way to check.. just touch both the small metal patches on the back of the fuse.. if the light lights on both.. all is good.