TwinTurbo.NET: Nissan 300ZX forum - Check the coolant temp sensor plug/wiring first
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Subject Check the coolant temp sensor plug/wiring first
     
Posted by Doug71zt(CAN) on July 22, 2018 at 5:46 PM
  This message has been viewed 298 times.
     
In Reply To Another Intermittent Hesitation Post.... posted by FrozTTy on July 22, 2018 at 08:14 AM
     
Message It will sometimes cause this issue, and it right there in front.
Connect/Relocate a knock sensor to get rid of code 34. Just buy a new knock sub-harness for $20 and a knock sensor from Bernie and getrdone.
Other things, wiring harness/connector corrosion - MAF connector, PTU connectors, CAS connector, less so - coil pack and injector plugs - look for green/crappy pins and sockets. Consider getting rid of your PTU sub-harness or re-locating the PTU away from the heat.
If you can't remember when you last did a fuel filter or plugs, change them. They are likely not your problem though.
FPR and Damper are maintenance items if you haven't ever changed them, they only last 15-20 years.
Sticking wastegates will not be your issue here, it's likely engine management, and intermittent usually means a failing component or harness/connector corrosion.
Checking out the harness plugs is the cheap/easy thing to do first. Hardly any cost, all it takes is time.

     
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