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P1121, P1132, P1152

New 01/27/2005


The car started to stall and run like crap and did not turn on the check engine light but I got it to pull some codes with it running
P1121
p1132
P1152

should I just try to change the TPS and see if it fixes it

Thanks Nick
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Continuous Memory DTC P1121 indicates the TP sensor is inconsistent with the MAF sensor.

Diagnostic Trouble Codes (DTCs) P1131 bank 1 (Cylinder 1) and P1151 bank 2 indicate the fuel/air ratio is correcting rich for an overly lean condition. The HO2S voltage is less than 0.45 volt. DTCs P1132 bank 1 (Cylinder 1) and P1152 bank 2 indicate the fuel/air ratio is correcting lean for an overly rich condition. The HO2S voltage is greater than 0.45 volt.

I'd suspect a bad or contaminated MAF sensor. Try cleaning the MAF sensor. Check the connection to the MAF sensor. Do you have a K&N or other oiled air filter?

Glen Murdock
Port Lavaca, TX
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Here is what Ford says to check.
Possible causes:

Fuel system

Induction system

EGR System

Base engine

  • Check intake air system for leaks, obstructions and damage.
  • Check air cleaner element, air cleaner housing for blockage.
  • Verify integrity of the PCV system.
  • Check for vacuum leaks.