got code po125 on 2001 Ford ranger, water temp normal engine will not exceed 3000 rpm?

Question

After getting a code PO 125 on my obd2 meter I replaced faulty connector, temp sensor and thermostat after gauge would not read. now gauge reads normal when warm. also replaced fuel filter spark plugs and air filer. Compression normal in all cylinders. still will not run above 3000 rpm. Still get PO 125 on meter.

Answer 1

Hi there,

If replacing the temp sensor hasn't solved the issue, it's likely a wiring problem. Here is some info for you.

P0125 FORD - Insufficient Coolant Temperature for Closed Loop Fuel Control

Read more: https://www.autocodes.com/p0125_ford.html