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P0125 Diagnostic Trouble Code Discussion for December 2005

Insufficient Coolant Temperature For Closed Loop

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Trouble Ticket Help Requests for DTC P0125
Help Request Posted
1999 Chevrolet C3500 7.4L Excessive Emissions VIN: 1GCDC5TTTV
P0125: Engine Coolant Temperature Insufficient For Closed Loop Fuel Control. Thanks in advance for any help. This truck came in for a smog inspection. Failed as a gross polluter for hc at idle. Engine runs good, no misfires. Could not find anything that jumped out at me. At idle the short term fuel trim is right around 0 both banks, go...
December 13, 2005
1996 Isuzu Trooper LS 3.2L MIL Lamp on VIN: JACDJ58V17
P0125: Insufficient Coolant Temperature For Closed Loop. ... codes p0125 & p1870. checked coolant temp sensor reading, was low temp. replaced stat. temp reading came up to 190-195. released vehicle to customer. came back several days later, same codes. check temp reading again, in...
December 15, 2005