Po125
11-14-2014, 07:40 AM
#11
Senior Member
Right for 97/98, one coolant one head. ECT and CHT sensors. The ECT is a wet socket, - CHT is a dry socket (no contact).
The brass bulb of the ECT can get corroded over time. Might be making it flaky.
I'd reset the KAM, see if it comes back before doing anything here.
You can pull the PCM fuse to turn off the CEL(MIL) to erase the KAM (KeepAliveMemory) or, - disconnect the battery (neg first then pos), touch neg and pos cables together, then reconnect (pos first then neg) or, - use a scanner if you have one.
You can also just disconnect the neg on the battery for a 1/2 hr or so, - that'll do it as well.
The brass bulb of the ECT can get corroded over time. Might be making it flaky.
I'd reset the KAM, see if it comes back before doing anything here.
You can pull the PCM fuse to turn off the CEL(MIL) to erase the KAM (KeepAliveMemory) or, - disconnect the battery (neg first then pos), touch neg and pos cables together, then reconnect (pos first then neg) or, - use a scanner if you have one.
You can also just disconnect the neg on the battery for a 1/2 hr or so, - that'll do it as well.
01-02-2015, 04:08 AM
#16
Its not a thermostat. If you have a ability to see what the actual temperature the PCM is seeing vs a thermal gun it would help. You have a bad CHT. I recently had to do it to my 03.
01-02-2015, 09:06 AM
#17
Senior Member
Thread Starter
do you have to change the antifreeze to replace it? Or is it a un plug un screw and replace thing? Or do I have to have fancy tools and all that fun stuff?
