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What does code P1351 mean?

Every time i erase the code and crank the engine the same code will show again when i scan for codes.1999 GMC Sierra 1500 SLE, 5.0 L

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  • Rich Fettig
    Rich Fettig Jan 04, 2017

    Most likely bad ICM. IGNITION Contorl Module but it could be many things. Suggest looking up gmc p1351 code on google.

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Until you fix the fault the code will come back
code p1351 is cylinder misfire with fuel cut off--cylinder 5==causes --wiring connections--fuel level low---ignition/fuel system---intake leak--mechanical fault

Posted on Jan 04, 2017

  • 2 more comments 
  • Joe Russell Jan 04, 2017

    if something is wrong with the ignition system what does ignition control circuit high voltage mean?

  • Bill Boyd Jan 04, 2017

    most of the fault codes that have a high voltage reading as a fault indicate a short to positive

  • Joe Russell Jan 04, 2017

    explain what you mean about short to positive.

  • Bill Boyd Jan 04, 2017

    means that instead of the power going through the sensor it is shorting out and by passing the system but is not a dead short
    instead of a low voltage reading after the unit or ground reading it is reading a high voltage
    best talk with an accredited auto electrical shop or get a workshop manual to see what it is all about

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  • GMC Master
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Google p1351 gmc. There are several causes and steps to diagnose this issue.

Posted on Jan 04, 2017

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1 Answer

My check engine light is on in my 2008 GMC SIERRA 1500 pickup with 5.3 V8 I have 2 fault codes, PO449 & PO455. I tried removing battery cable no help. Can anyone steer me in righ direction. Thanks


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I have 1999 gmc new Sierra Z71 1500 4wd 4.8 8cil shows code P0420 what can I do to fixed


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I HAVE A GMC SIERRA 1999 1500 SERIES . AT LOW IDLE IT SOME TIMES GO DEAD LIKE SOMEONE TURNED THE KEY OFF . IT WILL CRANK BACK UP BUT IS HARD TO START . WHAT COULD THIS BE ?


Hello
The engine and automatic transmission in this vehicles drive train are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPEDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM

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Reduced engine performance


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If there are no fault codes, there is not much you can do other than performing normal maintenance like replacing the air filter and fuel filter.

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Computer analysis showed these codes... P0330 P1133 P1135 P1346 P1349 P1351 P1354. can anyone tell me what each of these mean?


P0330 Knock Sensor 2 Circuit (Bank 2)
P1133 Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 1, Sensor 1)
P1135 Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)
P1346 VVT Sensor Range/Performance Problem (Bank 1)
P1349 VVT System Malfunction (Bank 1)
P1351 Variable Valve Timing / CMP Sensor Range / Performance
P1354 Variable Valve Timing System Fault

NOTE:Variable Valve Timing (VVT) sensor is also known as camshaft position sensor.
The Variable Valve Timing (VVT) system controls intake valve timing in response to driving conditions.

Possible causes are:
  1. Incorrect valve timing P1346, P1349, P1351 & P1354
  2. Faulty oil control valve P1346, P1349, P1351 & P1354
  3. Faulty VVT controller assembly P1346, P1349, P1351 & P1354
  4. Faulty ECM All Codes
  5. Jumped timing belt All Codes
  6. Faulty Camshaft Position Sensor P1346, P1349, P1351 & P1354
  7. Faulty O2 Sensor (Bank 1, Sensor 1) P1133 & P1135

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