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P0128 Diagnostic Trouble Code Discussion for January 2012

Thermostat System Malfunction


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Trouble Ticket Help Requests for DTC P0128
Help Request Posted
2001 Toyota Camry CE 2.2L MIL Lamp on
P0128: Thermostat System Malfunction. ... the evap and cat monitors on. We have replaced a thermostat as it set a p0128 code while attempting to set them and have now done several cold soak monitor runs and neither the cat or evap will set. The iat and ect are within 2 degrees of each other on a c...
January 02, 2012
2008 Mercury Grand Marquis LS 4.6L MIL Lamp on VIN: 2MEFM75V28
P0128: Not getting to temperature. 2 thermostats, same result engine comes up to 200 degrees in the shop. drive it temperature gauge stays on cold side, scan tool reads 169 degrees, checl thermostat housing with gun 170 degrees. thermostat fits tight in housing, water outlet holds it in place, ...
January 23, 2012
2008 Mercury Grand Marquis LS 4.6L MIL Lamp on VIN: 2MEFM75V28
P0128: Not getting to temperature. 2 thermostats, same result engine comes up to 200 degrees in the shop. drive it temperature gauge stays on cold side, scan tool reads 169 degrees, checl thermostat housing with gun 170 degrees. thermostat fits tight in housing, water outlet holds it in place, ...
January 24, 2012
2001 Toyota Camry CE 2.2L MIL Lamp on
P0128: Thermostat System Malfunction. ... the evap and cat monitors on. We have replaced a thermostat as it set a p0128 code while attempting to set them and have now done several cold soak monitor runs and neither the cat or evap will set. The iat and ect are within 2 degrees of each other on a c...
January 02, 2012
2008 Mercury Grand Marquis LS 4.6L MIL Lamp on VIN: 2MEFM75V28
P0128: Not getting to temperature. 2 thermostats, same result engine comes up to 200 degrees in the shop. drive it temperature gauge stays on cold side, scan tool reads 169 degrees, checl thermostat housing with gun 170 degrees. thermostat fits tight in housing, water outlet holds it in place, ...
January 23, 2012
2008 Mercury Grand Marquis LS 4.6L MIL Lamp on VIN: 2MEFM75V28
P0128: Not getting to temperature. 2 thermostats, same result engine comes up to 200 degrees in the shop. drive it temperature gauge stays on cold side, scan tool reads 169 degrees, checl thermostat housing with gun 170 degrees. thermostat fits tight in housing, water outlet holds it in place, ...
January 24, 2012