My 2000 Ford Windstar failed the emissions test with (3) codes. on 2000 Ford Windstar

P0135-02 Heater sensor heater circuit malfunction bank 1 sensor 1, P01131-Manufacturer specific code, P0171-System too lean bank 1.

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
THE PO 171 IS POSSIBLE VAC LEAK IN BANK 1, HEATER CIRUIT POSSIBLY BAD IN SENSOR OR CIRCUIT