Engine code 23- Where is the MAT sensor - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chris91 · 12-17-2012, 09:40 PM

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

clinebarger · 12-17-2012, 10:19 PM

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

12-17-2012, 09:40 PM	#1
chris91 Registered User Join Date: Mar 2008 Location: summerville, sc Posts: 93	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

12-17-2012, 10:19 PM	#2
clinebarger Senior Member Join Date: May 2009 Location: Fort Worth, TX Posts: 6,370	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



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