P1620 Diagnostic Trouble Code Discussion for June 2006
Low Engine Coolant Switch Circuit Low Input
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| Help Request | Posted | |
| 2002 Saturn SL2 1.9L No Start, Poor Idle Quality, Cuts out, Stall, Misfire VIN: 1G8ZK52732 P1620: low coolant circuit. This vehicle runs great until approx engine temp of 105 degrees - as per data stream- and the will start picking up occasional mis -fire , first intermittantly on one cylinder and then as it runs more to other cylinders unitl it stalls. Sometimes fires right b... |
June 22, 2006 |
