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07-05-2009, 05:12 PM | #1 | |
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P1151&P1150 codes for 1995 lincoln town car
What are they i am going to auto zone getting it scanned. Could it be a sensor if so what one? The car is not moving when i step on the gas! It does not always do it!!!
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07-05-2009, 10:08 PM | #2 | |
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Re: P1151&P1150 codes for 1995 lincoln town car
rom what I have read, it could be numerous things. Dirty MAF, clogged fuel filter, O2 Sensor, with out putting a real scanner with Data Stream, its to difficult to figure out. I would take it to a shop so they can preform the proper Diag procedures.
Bryan
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07-06-2009, 11:30 AM | #3 | |
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Re: P1151&P1150 codes for 1995 lincoln town car
what would i be looking for with a real scan tool?? new fuel filter , cleaned to the best i could on the MAF bank 1 sensor 1 shows .000 at idle ... Now do you know what "fuel trim advance" is??? it said 42.1% on a MTG2500 scantool!!!
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08-15-2009, 01:26 PM | #4 | |
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Re: P1151&P1150 codes for 1995 lincoln town car
P1151 - Lack of HO2S-21 Switch, Sensor Indicates Lean
A HEGO sensor indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when fuel control system no longer detects switching for a calibrated amount of time. H40 DTCs P1131, P1132, P1151 AND P1152: UPSTREAM HO2S NOT SWITCHING. DTCs P1130 and P1150: FUEL SYSTEM NOT SWITCHING AT FUEL TRIM (RICH OR LEAN) Note: It is necessary to address all Continuous Memory Ignition and Misfire DTCs, if received during Continuous Memory testing, before addressing any KOER HO2S DTCs. DTC/HO2S Reference List HO2S-11 = DTCs P1131, P1132 and P1130 HO2S-21 = DTCs P1151, P1152 and P1150 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. This code is for the drivers side upstream O2. You first need to check for any intake leaks. You can spray carb cleaner around the intake to check for vacuum leaks. If the engine revs you have found a leak. Also check all PCV and vacuum hoses for leaks. You will then need to moniter the MAF for correct BARO readings.There are a lot of needed tests to determine why you are getting the lean code. Lean codes do not always mean a bad O2. PLEASE REPLY IF NEEDED |
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