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Problem starting suspect fuel pressure sensor

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The engine, is it a diesel or petrol?????????????????

Posted on May 21, 2011

  • patlamy1 May 22, 2011

    not a diesel engine

  • Eddie Sulaj
    Eddie Sulaj May 22, 2011

    Right, now we're getting some where. the fuel fielter has a vacume control valve built in and it will ristrict the fuel flow. check when the fielter was last changed and was it aftermarket fielter cause they are really bad. I'm saying this cause it has happen to me few times.


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It could be that the fuel pump is going bad. It could be also that your fuel filter is clogging up or going bad or going bad.

Posted on May 21, 2011


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My truck is showing codes 171 and 174. Can you help

P0174 Generic Definition

Fuel Trim Bank Two Condition
- The ECM has detected a rich or lean air/fuel ratio condition on engine bank two

Probable Cause[s]

  1. If bank one and two are set together suspect a fuel pressure condition or MAF sensor fault
  2. Failed HO2S21
  3. Ignition misfire condition
  4. Fuel injector problem
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    P0171 Generic Definition

    Fuel trim bank one condition
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    2. Oxygen sensor defective
    3. Ignition misfire-repair
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