02 code p1121
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Tuned
Joined: Dec 2007
Posts: 352
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From: burney
02 code p1121
hi have o2 150,5.4 ,wife came home to night backed up to unload some
wood and would not idle down stayed at 2200to 2400 rpms
code reader said p1121 cleared and now idles but a little rough
tps sencer?
thanks any ideas al
wood and would not idle down stayed at 2200to 2400 rpms
code reader said p1121 cleared and now idles but a little rough
tps sencer?
thanks any ideas al
Hotshot
Joined: Jan 2004
Posts: 19,762
Likes: 1,079
From: St Louis
P1121 indicates that the readings from the MAF and the TPS are illogical relative to each other.
Check for an air tube leak between the MAF and the throttle body. Check TPS and MAF connectors for obvious faults.
Beyond that, you'll need a good scan tool (easiest) or a multimeter to check several PIDs to properly diagnose.
Steve
Check for an air tube leak between the MAF and the throttle body. Check TPS and MAF connectors for obvious faults.
Beyond that, you'll need a good scan tool (easiest) or a multimeter to check several PIDs to properly diagnose.
Steve
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