Code 23 MAT sensor
Thread Starter
Burning Brakes
Joined: Jun 2006
Posts: 939
Likes: 0
From: Temecula California
Code 23 MAT sensor
Can anyone help with this? I have a 1990 Corvette convertable (L-98 engine). My Service Engine Soon light comes on after running the car for a few minutes. I ran the diagnostic and it came out with a code 23 (Manifold Air Temp sensor) I have a relocation kit for the MAT sensor and I replaced the old one and it did not fix the problem. Just to troubleshoot I disconnected the battery to reset the computer and hooked up the harness to the stock (under the intake plenum) sensor and again the Service Engine Soon light came back on (Code 23). Is there something else I might be overlooking?
