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P0128 Diagnostic Trouble Code Discussion for May 2011

Thermostat System Malfunction

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Trouble Ticket Help Requests for DTC P0128
Help Request Posted
2003 Chevrolet Blazer LS 4.3L No Start, Misfire, MIL Lamp on VIN: 1GNCS18X13
P0128: ECT Sensor Below Thermostat Regulating Temperature. ... and has been running rough since. Self test EEC had codes P0128 and P0300. There weas a TSB in AllData related to the distributor, so I removed and inspected it with no obvious concerns. upon inspection noticed only had ...
May 19, 2011
2002 Volvo S40 1.9L MIL Lamp on VIN: YVIVS29582
P0128: Ect sensor. ... codes P0015 and P0128 stored in the system - and no apparent driveability issues. The coolant temperature sensor, cam reset valve and the flame trap were replaced at that time. the vehicle is now back with the same codes.
May 21, 2011