2003 Ford Focus trouble code 2274

RANDY SHARP

MEMBER
2003 FORD FOCUS
2.3L
4 CYL
2WD
AUTOMATIC
75,000 MILES

I have posted this before I have a trouble code 2274 02 sensor stuck lean-bank 1 sensor 3, I was going to test my fuel pressure out but the only way you can test this particular motor is have a scanner that is capable of reading fuel pressure or cutting into the fuel rail, so testing the fuel pressure is not happening. What would be the best way to see if there is a exhaust leak I don't hear one.I am going to put a new fuel filter on it. So does any one else know ant other possible solutions. The car really cuts out when ac is turned on or the defrosters, what I understand the air condition is tied into the defroster to take the humidity out of the defrosters. So if anyone has any theory on this I would appreciate it. Thank You

1 Reply

HMAC300

MECHANIC
48,601 POSTS

There is no code 2274 2270-73 only and this can be a bunch of things the air leak can be holes in duct work going to throttle body and or any grommet on engine like breather, pcv etc. Torn or not there. If you can't test the fuel pressure there are adapters for this or homemade ones so you can. If you don't want to do that then have a pro with a scanner check it he can. Pic shows causes for this and it's not your a/c it could be a coolant problem like a blown head gasket if level is low or any of the things listed

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