My daughter called today from school and said that her service engine light came on. I had a friend look at the code and it was P0125 Insufficient Cooling Temperature for closed loop fuel control. Has anyone seen this code before and what did you do to fix it?
She four hours from home and her boyfriend is going to try and fix it. Any suggestions.

 

I also have a 98 ZX2 and I had the same code, my problem was an aftermarket module I installed, which sent false air temp readings to the computer to give me better gas mileage, once i uninstalled it and erased the code , the check engine light has not come back on, so there could be a faulty air temp sensor, it is located in the air filter housing.

 

This code is related to coolant temp. Does the car warm up to normal operating temp? If not, the T-stat may be stuck open causing the temp not to reach normal setting off the fuel closed loop error.