Code 23 MAT
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From: Louisville, Ky
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Code 23 MAT
85 Z51 Auto. Getting a soft Code 23 meaning sets code but light doesn't stay on. Checked per FSM and have 5 volts and a resistance of .700 k ohms which if my math is correct that is 700 ohms. Anything over 4 volts is good. What isn't matching is ohms. Scan tool showed 203 degrees F. Chart has 210 f-185 ohms, 160f-450 ohms, 100f-1800 ohms. So it looks to me the resistance is too high for the temp reading. I double and triple checked the readings after clearing code, driving, code reset. I think I have a bad or weak sensor. What say you? Need more info?, just ask. Under plenum so tough to replace? These can be relocated correct? If so can you post a link or lmk, either way, replace or relocate? TIA.
Joe K
Joe K
