jdub20tx

Had a bad misfire changed the plugs and it fixed the problem but the check engine light stayed on. The code was 22 engine coolant temperature sensor. Now the misfiring is back after a week. Do you think this is fouling out my plugs?

Ali SC3

iTrader: (10)

yeah if it fails open then it thinks the engine is cold all the time and you get a bunch of fuel.
A bunch of fuel when the engine is warm and the ecu doesn't know it = fouled plugs.
replace the coolant sensor, and then run the car the plugs will clean themselves in a little while.

pogoism9

iTrader: (1)

QFT - also, if you manage to get it to run, your gas mileage will be garbage....

jdub20tx

Yep gas mileage is terrible! Thanks i will try to change the ect tomorrow. Is it right on top or do I have to remove a bunch of things to get to it?

Ali SC3

iTrader: (10)

https://www.clublexus.com/forums/per...6-sc300-2.html

Candela

iTrader: (1)

I have a similar problem, and replaced the sensor with a brand new toyota sensor, spent the extra money.

Still have code 22, ECT circuit fault............long story short -- a long time ago, the wires for the ECT plug broke, I soldered them back quickly, I am not an expert in soldering......Should I try again? I also broke the knock sensor wires, I soldered those and those codes went away.

What you think Ali SC3?

Ali SC3

iTrader: (10)

that is a good thought I have broken one of those wires and repaired them before also. maybe it broke in another spot or it came loose, I would definitely take another look at it.