2003 Ford F-150 Engine codes

PKTPATTERSON

MEMBER
2003 FORD F-150
6 CYL
2WD
AUTOMATIC
130,000 MILES

I have a 2003 ford f150 (4.2L EFI) automatic the engine light came on so I had it checked and here are the codes P1157, P1131 but the engine runs fine can you help me.

Wednesday, November 19th, 2008 AT 12:12 PM

1 Reply

DAVE H

MECHANIC
13,384 POSTS

Both codes refer to the same fault ..H20s 11 switch, fuel trim at limit .. see possible causes on first diagram under code P1130

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2003 Ford F-150 Engine codes

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