IT MEANS THE 19YEAR OLD THERMOSTAT IS DEAD.
OR ECT DEAD.
SEEM YOU FORGOT THE ECT
IN FACT FIRST THING iS I CHECK IS SCAN PID ECT
IF IT SHOWS BELOW 180F THE ECT IS BAD OR THERMOSTAT BAD OR INSTALLED WRONG WAY OR DID NOT BURP ALL AIR
.LEARN TO SCAN SENSOR USING TOOLS PID MODE.
IF AIR IS AT THE ECT IT WILL LIE, TO YOU AND READ LOW.
ECT CAN NOT READ AIR ONLY COOLANT AF50%..
THE CARS PCM MONITOR THE COOLANT TEMP FULL TIME
AND AS ENGINE WARMS AND GETS NEAR FULLY WARM
THE PCM GOES TO CLOSED LOOP.
IF NOT 0125 IS THE WARNING
- MISSING THERMOSTAT OR THOSE SILLY FAIL SAFE STUCK OPEN..STATS , COOLANT STUCK AT 140f
- ECT BAD , EASY TEST . SCAN IT YET (pid SCAN)
- WIRES TO ECT CUT THE CONN FELL OFF OR IS 1/2 SEATED ONLY . BINGO?
- AIR SURROUNDING ECT IT FAILS. BURP ALL AIR OUT OF THE SYSTEM, 100% NO AIR AND IS A SKILL SET , YOUTUBE IT:?
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