Code 32 on 82, Fuel Solenoid malfunction
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Joined: Aug 2002
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From: Milwaukee, Wisconsin
Car: 1982 Trans Am
Engine: LG4
Transmission: 200C
Axle/Gears: 3:73
Code 32 on 82, Fuel Solenoid malfunction
I have code 32 and 13 on my 1982 Trans Am. Stock LG4 with an open element, headers and exhaust. Code 32 is Fuel Solenoid malfunction. Code 13 is Oxygen sensor short(plus something else). The car is probably running lean, because it does get warm easily. Code 13 most likely came on because it is too lean for the sensor to read. In 1982, there was only one code for the oxygen sensor. I'm going to try carb cleaner, the Fuel Solenoid may be stuck. I don't know if it's worth it to put money into this fuel delivery system.
Last edited by TransAm12sec; Dec 7, 2004 at 10:34 PM.
Joined: Mar 2000
Posts: 43,187
Likes: 45
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The ECM can only tell whether or not the MCS is loading the circuit. It can't tell whether or not the solenoid plunger is moving up & down. Therefore, squirting the carb down with carb cleaner isn't going to address that issue. You need to check out the electrical circuit, including making sure the connector is plugged in (if you haven't already - it's not uncommon for the plastic retainer tab to get broken, and for the connector to slide out), and a resistance check of the solenoid.
The default mode when the MCS isn't working is to go rich. So, these two codes probably aren't related. Check out the O2 sensor wiring, but more than likely the O2 sensor simply needs to be replaced.
FWIW, according to the FAQ link on the TGO home page, Code 13 is "Oxygen sensor signal stays lean during warm engine cruise". That certainly can be caused by an O2 sensor that's shot.
According to the same list, Code 32 is:
Fault in barometric pressure sensor circuit OR
Fault in exhaust gas recirculation valve diagnostic switch OR
Fault in electronic vacuum regulator valve
The only one that applies to an LG4 is the BPS (aka BAP sensor). It should be mounted to the firewall by the heater box. Wire harness only, no vacuum hose attached.
The default mode when the MCS isn't working is to go rich. So, these two codes probably aren't related. Check out the O2 sensor wiring, but more than likely the O2 sensor simply needs to be replaced.
FWIW, according to the FAQ link on the TGO home page, Code 13 is "Oxygen sensor signal stays lean during warm engine cruise". That certainly can be caused by an O2 sensor that's shot.
According to the same list, Code 32 is:
Fault in barometric pressure sensor circuit OR
Fault in exhaust gas recirculation valve diagnostic switch OR
Fault in electronic vacuum regulator valve
The only one that applies to an LG4 is the BPS (aka BAP sensor). It should be mounted to the firewall by the heater box. Wire harness only, no vacuum hose attached.
Thread Starter
Supreme Member
Joined: Aug 2002
Posts: 2,076
Likes: 0
From: Milwaukee, Wisconsin
Car: 1982 Trans Am
Engine: LG4
Transmission: 200C
Axle/Gears: 3:73
On the scanner it said there was a malfunction with the solenoid with code 32. The mechanic said there was only one code in 1982 for the oxygen sensor, so it wouldn't matter if it is lean or rich, dissconnected, or shorted, only code 13 would show up.
The idea with the carb cleaner is if it is stuck, then hopefully it would help it move freely.
The idea with the carb cleaner is if it is stuck, then hopefully it would help it move freely.
Joined: Mar 2000
Posts: 43,187
Likes: 45
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
It won't move any freer if the solenoid coil has gone bad or the electrical circuit is somehow compromised.
And, it won't help any if it is actually the BPS that is at fault.
And, it won't help any if it is actually the BPS that is at fault.
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