Can somebody help me pinpoint exact problem

Best Answers

• Mr_Shiftright Member Posts: 64,481

  March 2018 Answer ✓

  Well the P0172 is probably caused by the misfire P0301. There's no way to tell you what the exact cause is--you have to test each possible cause. If you want me to guess with your money I'd say spark plugs and/or plug wires--especially if those haven't been changed in a long time.
  
  You could possibly switch spark plug wires and see if the trouble code moves the other cylinder you switched.
  
  Faulty spark plug or wire
  Faulty coil (pack)
  Faulty oxygen sensor(s)
  Faulty fuel injector
  Burned exhaust valve
  Running out of fuel
  Poor compression
  
  
  
  

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• behemoth666 Member Posts: 3

  March 2018 Answer ✓

  Mr_Shiftright said:

  Well the P0172 is probably caused by the misfire P0301. There's no way to tell you what the exact cause is--you have to test each possible cause. If you want me to guess with your money I'd say spark plugs and/or plug wires--especially if those haven't been changed in a long time. You could possibly switch spark plug wires and see if the trouble code moves the other cylinder you switched. Faulty spark plug or wire Faulty coil (pack) Faulty oxygen sensor(s) Faulty fuel injector Burned exhaust valve Running out of fuel Poor compression

  
   replaced the old ones with autolite platinum spark plugs they’re good spark plugs at least I thought they were can’t be wires I replaced those as well and for no fuel I always keep her tank full. I just don’t want to go buy a bunch of parts and it not being one but the other and wasting money 
  
  

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• uceegod Member Posts: 3

  March 2018 Answer ✓

  You may be having a vacuum leak, try checking the air intake system - MAF, air filter & throttle body

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