Host of error codes
Thread Starter
Heel & Toe
Joined: Jun 2014
Posts: 16
Likes: 0
From: NJ
Host of error codes
First a brief description. Bought the Vette used, one owner who did take good care of it. 39,000 miles. Was driving down highway doing about 50-55 and went to accelerate and just started shaking and popping with no acceleration. Slow down and she is fine. Hooked up an OBD and got the following codes. 33,42,54,68,61. Figured 61 was the O2 sensors and is probably original so I'd go ahead and replace it. But the others are so varied I figured I'd probe some minds here first before trying to start easter egging parts.
Safety Car
Joined: Aug 2002
Posts: 3,842
Likes: 230
From: SANTA CRUZ CA
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
Start by resetting the ECM to clear the error codes. Then you know that any error codes you see are current.
Use this reference to determine what the error codes mean. It's broken down by year, which is important because they changed from year to year:
https://www.corvetteforum.com/forums...post1576116036
Use this reference to determine what the error codes mean. It's broken down by year, which is important because they changed from year to year:
https://www.corvetteforum.com/forums...post1576116036
Team Owner
Joined: Sep 2001
Posts: 62,067
Likes: 1,722
From: Athens AL
C7 of the Year - Unmodified Finalist 2021
C4 of Year Finalist (performance mods) 2019
Clarify the LS1 question first. Clear codes, see what comes back.
My general rule is to fix the code for the problem from the nose of the car backwards. Sensors at the front of the engine that fail will often trigger codes for other things downstream that really are not failures of those other sensors, its the first one that throws everything off.
My general rule is to fix the code for the problem from the nose of the car backwards. Sensors at the front of the engine that fail will often trigger codes for other things downstream that really are not failures of those other sensors, its the first one that throws everything off.
Safety Car
Joined: Jun 2003
Posts: 4,250
Likes: 656
From: San Diego Ca
Looks like a good session with your multimeter will pay big dividends.
The codes are pretty self explanatory once you either get a Helms or google the codes. The Helms is the best bet as it gives you way more information than google.
The codes are pretty self explanatory once you either get a Helms or google the codes. The Helms is the best bet as it gives you way more information than google.
Thread Starter
Heel & Toe
Joined: Jun 2014
Posts: 16
Likes: 0
From: NJ
1 Fuel injector
Found 1 fuel injector with resistance measurement way out of whack from the rest. Replace it and seems to run find. Now funds are a little tight right now but my thinking is to replace the rest as soon as I can get the cash together. What are the opinions and should I stay with the OEMs or is there something better. The Vette is completely stock but have been thinking of a cat back replacement exhaust system. Any thoughts would be appreciated.
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Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
Found 1 fuel injector with resistance measurement way out of whack from the rest. Replace it and seems to run find. Now funds are a little tight right now but my thinking is to replace the rest as soon as I can get the cash together. What are the opinions and should I stay with the OEMs or is there something better.
http://www.fuelinjectorconnection.com