my car is producing a code P0128 not really sure what's going on here. i replaced the coolant temp sensor today. i replaced the sensor because the PCM is reading 160 degrees, but the temp gauge on the dashboard is reading normal about 195. i am reading the PCM data using a ELM 327 cable and a laptop computer. so what gives here? they do not match. also will a pending code P0440. will a pending code prevent my car from passing inspection. the P0128 code is an active DTC. im not looking at putting too much money into the car as its is slowly turning into a salt buggy. im probably going to run it this winter and maybe another winter, then im going to look for another L67 car and i will have a good parts car. i am probably going to look for a regal GS instead of a GTP. i like the GTP but they seem to rot really bad, i have heard better things about the regal GS. at any rate i love the L67 as an engine, it's a decent performing engine although not as fast as my other quick car, a 1996 camaro Z28 LT1, but the LT1 has 2 more cylinders so of course its faster. i only drive the camaro in the summer.
when i look for another L67 car i am looking at southern cars. no way in hell am i going to buy another salted POS. we have the worst cars in the entire country right here in my area. want rusted junk, we have plenty of it rust like you have never seen.
btw the sensor i replaced today is the temp sensor underneath the thermostat housing. could my problem be caused by the thermostat??? the thing is the coolant temp on the dashboard reads normally which tells me that the engine is operating at normal temperature and that the PCM is getting a false reading.