3 Codes & bad idle!!
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Joined: Sep 2003
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From: Good 'ol Wisconsin
Car: I've had 4 thrid gens!!
Engine: Someday again I will have another!!
3 Codes & bad idle!!
Were the heck do I start.......
My car is throwing codes 32, 34, & 36. The car idles low when cold(have to keep my foot in it) and then when it warms up it idles to high (1500rpms).
32 is EGR, 34 is MAF, and 36 is MAF relay...I think I have them right. Anyone have a link to a list of what every code means?
I just set my TPS sensor to .54V(with my OTC 2000) and I tried to set the IAC but my car wouldn't idle that low without dying. So, right now I have it set to idle at 800 rpms when cold in park. What value can I set the IAC at with the ign. on and engine off? Can you set it that way?
So, is my MAF relay bad or my sensor?
I am missing the clip that holds the air filter housing to the MAF sensor...is that causing a problem? MAF is still seeing all the air that enters the engine?? Is something with the MAF causing the EGR code or is that messed up too? Never had any of these codes before I changed my intake about a month ago. No drivablitly problems beside the idle problems. Tell me were to start. Thanks, Nick.
My car is throwing codes 32, 34, & 36. The car idles low when cold(have to keep my foot in it) and then when it warms up it idles to high (1500rpms).
32 is EGR, 34 is MAF, and 36 is MAF relay...I think I have them right. Anyone have a link to a list of what every code means?
I just set my TPS sensor to .54V(with my OTC 2000) and I tried to set the IAC but my car wouldn't idle that low without dying. So, right now I have it set to idle at 800 rpms when cold in park. What value can I set the IAC at with the ign. on and engine off? Can you set it that way?
So, is my MAF relay bad or my sensor?
I am missing the clip that holds the air filter housing to the MAF sensor...is that causing a problem? MAF is still seeing all the air that enters the engine?? Is something with the MAF causing the EGR code or is that messed up too? Never had any of these codes before I changed my intake about a month ago. No drivablitly problems beside the idle problems. Tell me were to start. Thanks, Nick.
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From: St. Louis, Missouri
Car: 1989 Firebird Formula
Engine: 383 Stealth Ram
Transmission: 700R4
Axle/Gears: 3.73 9 bolt Posi
Re: 3 Codes & bad idle!!
Here is a link that has code definitions...
http://gmtips.com/3rd-degree/dox/tip...es/code-01.htm
Sorry, I'm not familiar with your motor enough to troubleshoot it. On a TPI motor, code 32 is common with a malfunctioning EGR valve or EGR solenoid.
Hope this helps.
http://gmtips.com/3rd-degree/dox/tip...es/code-01.htm
Sorry, I'm not familiar with your motor enough to troubleshoot it. On a TPI motor, code 32 is common with a malfunctioning EGR valve or EGR solenoid.
Hope this helps.
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From: oxford n.c.
Car: 1991 transam
Engine: 305 30 over long tubes into 3" y
Transmission: 700r4
Axle/Gears: 4:10
Re: 3 Codes & bad idle!!
code 34 maf sens. low airflow indicated .check terminal c on maf sensor ; it shouldbeabout0.5 volts at idle&4.7volts at wot. tracewire from term.c& lookfor a short to ground replace maf sensor. 36- maf burn off circuit can be set due to high resistancein the burn off relay contacts or connections ,the failure of the ecm to properly ground the circuit,or a poor connectionat any of the relays,maf sensor,and ecm.hope this helps jimmy
Thread Starter
Member
Joined: Sep 2003
Posts: 308
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From: Good 'ol Wisconsin
Car: I've had 4 thrid gens!!
Engine: Someday again I will have another!!
Re: 3 Codes & bad idle!!
The EGR fault looks to be a totally seperate problem from the MAF codes hey? Thanks guys...Cars suck!! 
Thread Starter
Member
Joined: Sep 2003
Posts: 308
Likes: 0
From: Good 'ol Wisconsin
Car: I've had 4 thrid gens!!
Engine: Someday again I will have another!!
Re: 3 Codes & bad idle!!
Ok, think I have found my culprit..........
A small air/vacuum leak coming from the egr passage on the runners. Its leaking where it meets the plenum. I think that is throwing all 3 codes. I just recently changed my intake gasket, thus I must have messed that runner gasket up a little when re-installing it.
So, I will have to throw new gaskets on the runners and see what happens.
Do you guys just put dry gaskets on or do you put a little red-ATV gasket maker on too???? I installed them dry last time.......
TIA, Nick.
A small air/vacuum leak coming from the egr passage on the runners. Its leaking where it meets the plenum. I think that is throwing all 3 codes. I just recently changed my intake gasket, thus I must have messed that runner gasket up a little when re-installing it.
So, I will have to throw new gaskets on the runners and see what happens.
Do you guys just put dry gaskets on or do you put a little red-ATV gasket maker on too???? I installed them dry last time.......
TIA, Nick.
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