OBD code p0133 on 98 windstar
I have a 98 windstar that the check engine light comes on showing 3 codes po1131.po133 and po 171 it runs fine with the light on but idles rough when I clear codes. I installed a diff engine and replaced # 1 o2 sensor bank1 I have check for vacum leaks . The only problem i have other than the check engine light is sometimes when I go to start it after it is warm it dosent starto nthe first crank seems like fuel leaks back to the tank
I have a 98 windstar that I installed a different engine in the engin I anstalled had 75,000 miles. the car runs fine exceot for the check engine light comes on .it gves me po codes 133 1131 and 171 all indicating I have alean problem on bank1 I changed the 02 sensor on bank1 and it didnn make a diference .I have checked fuel pressure ,vacum leakes .The engaine rus fine exceot idles rough after it warns up . I check egr .cleaned maff sensr istll cant fin the problem I am beginning to thik I have a Bad pcm..