Question about 1996 Ford Crown Victoria
Car chugs and sputters when starting then runs good, just bought it and need to know what to fix. car set for a year in a garage
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Posted on Jan 02, 2017
DTC P1506 is set when the PCM detects the
engine idle speed is greater than the desired rpm. This is most commonly
caused by a dirty or bad IAC valve. Cleaning the throttle body will,
most likely, cure this problem.
p1131 means that the bank #1 O2 sensor, the bank closest to the firewall, cylinders 1-3 is showing a lean mixture. Could be a vacuum leak, a misfire on that bank, an exaust leak upstream of the O2 sensor, fuel control or injector problem on that bank, a faulty O2 sensor, faulty PCM, faulty wiring in the engine control wiring harness.
P0171In the vast majority of cases, simply cleaning the MAF sensor does the trick. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling also Inspect all vacuum and PCV hoses, replace if necessaryCheck for a dirty fuel filter and proper fuel pressure
Posted on May 19, 2010
SOURCE: the code of p0171 ,how to fix
You can try cleaning the MAF first:
If the code comes back after clearing it, check the spark plugs (not an easy task). My 2000 Expedition had fouled plugs....the 5.4 has a bad head design with recessed spark plugs.
Posted on Jun 24, 2009
SOURCE: 2001 ford expedition
the same thing happen to mine twice,and both times it was the coils ,You have 8 total ,one over each spark plug.I replaced them and no more problems.Check with the auto parts so they can tell you which one is bad,hope this helps...
Posted on May 26, 2009
SOURCE: What is the code P1451 solution?
P0171 - System too Lean (Bank 1)
P0174 - System too Lean (Bank 2)
P1451 - EVAP Control System Canister Vent Solenoid Circuit Malfunction
I'm afraid I don't have enough info to tell you how to fix the P1451 but I'm certain it's the cause of the other two codes.
Posted on Jun 08, 2010
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