code 42 help!
Thread Starter
Senior Member
Joined: Nov 2003
Posts: 967
Likes: 0
From: Plattsburgh NY
Car: 85 Camaro Z-28
Engine: 6.6
Transmission: 5-speed
code 42 help!
I got a code 42 on my car once i put the new maf sensor on and now the check engine light is on all the time and once in a while itll turn off, and when id go around a corner it would spit and sputter..... im not sure what exactly it could be but any help would be appreciated, this is what the code says.
42. Fault at electronic spark timing circuit OR
Fault at direct ignition system OR
Fault at fuel cutoff relay circuit
Thanks in advance!
42. Fault at electronic spark timing circuit OR
Fault at direct ignition system OR
Fault at fuel cutoff relay circuit
Thanks in advance!
Thread Starter
Senior Member
Joined: Nov 2003
Posts: 967
Likes: 0
From: Plattsburgh NY
Car: 85 Camaro Z-28
Engine: 6.6
Transmission: 5-speed
anybody know whats going on, this is my daily driver i need to know whats wrong with it, if you need more info let me know i can provite it.
Thread Starter
Senior Member
Joined: Nov 2003
Posts: 967
Likes: 0
From: Plattsburgh NY
Car: 85 Camaro Z-28
Engine: 6.6
Transmission: 5-speed
i did a search on this code and found that it could be the ESC module or the wire not being pluged in completely, well when i have the car running i can unplug the EST wire and the engine light will go out and when i plug it back in itll stay off, but if i hit the throttle fast, it will spark knock, i put new plugs in, the timing is set at 6* base timing it has a new ignition module as well. so im guessing its probably the ESC. it runs kinda rough down the road. and earlier i stated that it would stall out around corners, well i think thats just because i was low on gas
but anyways the ESC module is $57 bucks so i want to know if that is it before i go and buy it, im also throwing a 23 code which states its the TPS sensor or MAT sensor, i replaced the TPS and its throwing the same code......
but anyways the ESC module is $57 bucks so i want to know if that is it before i go and buy it, im also throwing a 23 code which states its the TPS sensor or MAT sensor, i replaced the TPS and its throwing the same code...... Thread Starter
Senior Member
Joined: Nov 2003
Posts: 967
Likes: 0
From: Plattsburgh NY
Car: 85 Camaro Z-28
Engine: 6.6
Transmission: 5-speed
come on guys, i really need help with this, it has new plugs, wires, distributor module, ESC module, and im still throwing that code, could it be because im running extremly lean from the FPR being adjusted low? but i would think the O2 sensor would detect a lean condition and throw a code for it but im not sure.....
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