Code 34 MAF
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Joined: May 2004
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From: In the valley
Code 34 MAF
Good evening, I have an 88 automatic convert. Car has been running fine, except for a slight rough idle, I mean very slight. Had an exhaust leak in the y pipe before the mufflers. Mufflers shot also. Replaced the rear y and mufflers, and when the car was restarted it threw a code 34. I do not see any correlation between the two.
I ran the checks in the Helms manual for code 34 and everything points to the MAF sensor. If I pull the connector, code 33, idle does smooth out some, and I have 12 volts coming to the MAF connector. Coincidence, or am I missing something relating to the exhaust?
Are the aftermarket MAF sensors acceptable for a bone stock engine? The price of the Delco is right salty! I have searched MAF in the forums and see that AutoZone carries them. Would this be a terrible compromise? I want to save money like the next guy, but if the Delco is that much better, so be it. A couple of hundred dollars savings can be spent for more goodies.
Sorry to be so long, any thoughts/opinions on the issue of the exhaust vs MAF and price of part would be greatly appreciated.
Thanks, in advance, this is a great place!
Charlie
I ran the checks in the Helms manual for code 34 and everything points to the MAF sensor. If I pull the connector, code 33, idle does smooth out some, and I have 12 volts coming to the MAF connector. Coincidence, or am I missing something relating to the exhaust?
Are the aftermarket MAF sensors acceptable for a bone stock engine? The price of the Delco is right salty! I have searched MAF in the forums and see that AutoZone carries them. Would this be a terrible compromise? I want to save money like the next guy, but if the Delco is that much better, so be it. A couple of hundred dollars savings can be spent for more goodies.
Sorry to be so long, any thoughts/opinions on the issue of the exhaust vs MAF and price of part would be greatly appreciated.
Thanks, in advance, this is a great place!
Charlie
Team Owner
Joined: Dec 2000
Posts: 90,675
Likes: 304
From: SE NY
Cruise-In II Veteran
First try replacing the MAF power relay and check to see if the sensor wires glow bright red for two seconds after you turn off the engine. If the wire doesn't glow replace the burn off relay.
If those fail, see if you can find a used MAF from a 3rd Gen F-body car in a bone yard.
I'm now running the MAF from my '86 IROC in the '88 Vette.
If those fail, see if you can find a used MAF from a 3rd Gen F-body car in a bone yard.
I'm now running the MAF from my '86 IROC in the '88 Vette.
