Intermittent Codes 34 and 36
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Joined: Aug 2002
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From: Warner Robins GA
Intermittent Codes 34 and 36
I've already changed the relays, checked connections on relay and MAF, changed the ECM, and changed the MAF itself. Can I pretty much assume it's a wiring issue?
Anyone ever had to deal with these codes and it turn out to be wiring?
Anyone ever had to deal with these codes and it turn out to be wiring?
Burning Brakes
Joined: Jun 2003
Posts: 827
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From: Henderson NV
Re: Intermittent Codes 34 and 36 (Tourney3p0)
Always give us the model year. On 84-90 34 is Mass airflow circuit, 36 is mass airflow burn-off circuit. On the LT1, 34 is the absolute pressure low (high vacuum) and 36 is optispark ignition timing fault. On the L98 for 34, clean the throttle body, clean the MAF connectors, replace the MAF relay or sensor. possible ECM failure. L98 36 code: it is pretty much to same as 34 through model year '91.
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From: Warner Robins GA
Re: Intermittent Codes 34 and 36 (vetteseniorcit)
Sorry about that. I'm usually pretty good about including the year.. I guess I've been hanging out in Off Topic too long.
Anyway, it's an 88. I already completely removed the throttle body and gave it a good cleaning. Replaced the IAC, TPS, etc as well. Admittedly it ran better after doing this, but I still get the intermittent codes.
Like I said, I already replaced the MAF, ECM, and MAF relays. I guess it's time to start digging into some wires.
Anyway, it's an 88. I already completely removed the throttle body and gave it a good cleaning. Replaced the IAC, TPS, etc as well. Admittedly it ran better after doing this, but I still get the intermittent codes.
Like I said, I already replaced the MAF, ECM, and MAF relays. I guess it's time to start digging into some wires.
Melting Slicks
Joined: Jun 2002
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From: Phoenix AZ
Re: Intermittent Codes 34 and 36 (Tourney3p0)
I guess it's time to start digging into some wires.
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From: Warner Robins GA
Re: Intermittent Codes 34 and 36 (vetracer)
How did the wires look coming out of the connectors for the MAF relays? .
I wish it wasn't intermittent.. that'd make it a lot easier to troubleshoot. Something has been done with the wires before I owned it though.. the duct work used to conceal the wires isn't factory.
Just out of curiosity, if it does end up being the MAF connector, how did you fix it? Were you able to repair what you had, or did you have to buy a new connector?
