Compared to many PCMs in other vehicles, these are cheap.
I believe you'll be fine getting one from a salvage yard as long as it's of your year model with federal emissions. Also, the same transmission/drivetrain.
Make sure it matches up!
Check on NAXJA. they may be able to help. Also, just because the ECT is new doesn't mean it isn't bad. The gauge and the PCM are on different circuits I believe. Which points at the PCM that could be an issue...
Make sure you have no air bubbles in the coolant system. After that, check your ECT. I've heard of a few having this problem. To be honest, I'd just install a new ECT sensor. It's likely your problem. The ECT likely isn't telling your engine it's warmed up and is staying in a constant open loop...
Selling my montero. If you want info on it, just check out my build thread. Send me a PM. Located in Fayetteville
$3000
It runs good, has cold AC and is turn key set for the trail, or make your own.
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