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P0128 Diagnostic Trouble Code Discussion for October 2008

Thermostat System Malfunction

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Trouble Ticket Help Requests for DTC P0128
Help Request Posted
2003 Volkswagen Golf GL 1.9L MIL Lamp on VIN: 9BWFP21J63
P0128: temp below control limit. ... keeps setting code p0128 ( temperature below control limit ). It will set every couple of days. I first replaced the coolant temp sensor as if you wiggled it the temp guage would go all out of spec. The vehicle came back and then I replaced the thermostat....
October 01, 2008