Engine code 23- Where is the MAT sensor
 

I am getting engine code 23. Could someone tell me where the MAT sensor is located. I only get the code after driving a few miles. When I shut the truck off it goes away until I drive a mile or 2.

Thanks. 88 chevy v8 1500

Re: Engine code 23- Where is the MAT sensor
 

Code 23 is not a valid powertrain code.

List of valid codes....
DTC 01
DTC 02
DTC 03
DTC 04
DTC 05
DTC 06
DTC 07
DTC 08
DTC 09
DTC 10
DTC 11
DTC 12
DTC 13
DTC 14
DTC 15
DTC 21
DTC 22
DTC 24
DTC 32
DTC 33
DTC 34
DTC 42
DTC 43
DTC 44
DTC 45
DTC 51
DTC 52
DTC 53
DTC 54
DTC 55
DTC 81