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Getting No Fire won't start will crank but won't start.getting 5 codes

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Old Oct 10, 2019 | 09:28 PM
  #11  
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gcburkett
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With the multiple codes I would check for wiring. The sensor ground is common to multiple sensors. The Air Intake, MAP and Cam Sensor all use the same sensor ground.
Probably easiest to test the IAT that plug into the air intake. I really think you have a bad common sensor ground. Trouble is finding it if you have a broken wire. I recently tracked down a broken control signal wire in my wiring harness. But these common ground have branch points. Ideally you would disconnect the PCM connector then ohm it between the connector and sensors. Of course if the wiring checks out ok then it probably would be the PCM but first all the checks for bad wiring need to be performed. I think you wire find all those sensors with high circuit have the same sensor ground. Good luck.
 
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Old Oct 25, 2019 | 12:59 PM
  #12  
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flipmann
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Ok so I changed the cam and crank positioning sensors and no change still wont start. Bought a new battery just in case still no change.
Do you think it could of jumped time? If so can I time it with a timing lite without it running. Or is there something else I need to check.
 
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Old Oct 25, 2019 | 01:14 PM
  #13  
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I also checked the ground wire. It was a little loose I tightened it up and nothing different. I did notice that the crankshaft sensor I think it has one on each side of the block.
 
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Old Mar 6, 2022 | 03:26 AM
  #14  
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00scrimp
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Don't know if you ever got this issue fixed i would hope so by now but when checking your fuel injectors you can't just stab the wire and ground the test light because as long as your asd relay is energized you'll have positive voltage to your injectors it's the ground that your pcm uses to fire the injectors and it gets the signal from your cam position sensor to know which injector to fire so if you have a code for no cam signal I'd start there.
 
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