1998 Chevy Lumina erg valve

Tiny
DIANN BARLOW
  • MEMBER
  • 1998 CHEVROLET LUMINA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 198,000 MILES
How do I check the erg wires with a multitester. I mean what amps do I use
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Saturday, January 3rd, 2009 AT 10:34 AM

9 Replies

Tiny
BRIAN 1
  • MEMBER
What engine, 3.1 or 3.8 it makes a difference. You have to check for a 5volt reference on the pintle position signal circuit. And the pintle position signal circuit for a short to the EGR valve control circuit. Post back with what you are trying to do and will advise from there.
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Saturday, January 3rd, 2009 AT 10:57 AM
Tiny
DIANN BARLOW
  • MEMBER
3.1 v6
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Saturday, January 3rd, 2009 AT 8:38 PM
Tiny
BRIAN 1
  • MEMBER
I might need to start over, was there a code? If so what was it? I need to know what wires your testing, what are you trying to figure out?I need some more info to properly help you. Did you follow what I posted earlyer? Post back and I will help you.
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Saturday, January 3rd, 2009 AT 8:47 PM
Tiny
DIANN BARLOW
  • MEMBER
I took it to Autozone they put it on a tester, and said it was either the erg valve or the erg solenoid. The service engine light comes on and stay on about a week. And then goes off and stays off about a week. I don't want to pay for something if its not the problem.
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Sunday, January 4th, 2009 AT 8:20 AM
Tiny
BRIAN 1
  • MEMBER
I will try to help as best I can, but I really need the code that set. You need a scan tool to command the egr open/closed. Here are some things to check. Excessive deposits on the EGR valve pintle or seat.

Remove the EGR valve and check for deposits that may interfere with the EGR valve pintle extending completely or cause the pintle to stick.

" Poor connections at PCM or EGR valve. Refer to Intermittents and Poor Connections Diagnosis in Wiring Systems.

Inspect harness connectors for backed out terminals, improper mating, broken locks, improperly formed or damaged terminals, and poor terminal to wire connection. Refer to Intermittents and Poor Connections Diagnosis in Wiring Systems.
Inspect the wiring harness for damage. If the wiring appears to be OK, connect J 39200 DMM and check circuit continuity while moving connectors and wiring harnesses related to the EGR valve. A change in the DMM display will indicate the location of the malfunction. Remove the egr and clean the egr tube they get plugged with carbon. These are some things to check, post back with the code so I can give better advise.
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Sunday, January 4th, 2009 AT 10:54 AM
Tiny
DIANN BARLOW
  • MEMBER
The codes that show are p0302 & p0401 would the misfire, cause the exhaust gas recirculation insufficient
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Thursday, January 8th, 2009 AT 6:13 AM
Tiny
BRIAN 1
  • MEMBER
No the missfire would not cause the egr code, the problem is the egr tube is plugged with carbon, you need to clean out the egr tube and passage in the intake and this problem will go away. Post back with any other questions.
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Thursday, January 8th, 2009 AT 9:28 AM
Tiny
DIANN BARLOW
  • MEMBER
Do I take it off, or can I just get fuel injector & carburator cleaner, and if I take it off will I need to buy a gasket
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Thursday, January 8th, 2009 AT 6:42 PM
Tiny
BRIAN 1
  • MEMBER
I would take it off, you can clean it better, and yes you will need another gasket.
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Thursday, January 8th, 2009 AT 7:07 PM

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