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rpmdiag, Tech and Instructor
Category: GMC
Satisfied Customers: 6699
Experience:  Since 1975
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I have a 2007 GMC Yukon Denali 6.2L. Scanner code

Customer Question

I have a 2007 GMC Yukon Denali 6.2L. Scanner code P0341..Camshaft Position Sensor A (Bank 1) - Circuit Range / Performance
Submitted: 2 months ago.
Category: GMC
Customer: replied 2 months ago.
I have changed a senor next to the timing cover and wire harmess. is there another senor that I'm missing.
Expert:  rpmdiag replied 2 months ago.

Hi, welcome to Just Answer. I’m Ron and I’ll be helping you
Before we get started though, Please understand that I don't know
your skill level or tools you have to assist us. Also understand that
I can't see, smell, hear, or touch the vehicle either, so patience is
appreciated. JA is a great Q/A site, but it does NOT replace a
repair shop.
My goal is to make you happy and get a great rating in return for
my time. Sometimes I have to give you bad news that I know you
didn’t want to hear, so please don’t shoot the messenger.

It only shows the one sensor which means that we have either a wiring/grounding issue or a bad computer if the engine is in time.

Thanks, Ron

Customer: replied 2 months ago.
the engine is running fine too.
Expert:  rpmdiag replied 2 months ago.

Okay, then this can either be a false code due to a bad computer, OR your engine injector firing is no longer being sequenced to the ignition firing order. The only way to determine this is with a scan tool and a lab scope. The engine will still run okay but power and fuel economy/emissions can suffer. See attachment for sequencing CAM and CRANK sensors.

Thanks again and please remember to rate me 5 stars and keep this link in case you need me again later on.


Expert:  rpmdiag replied 2 months ago.

I attached a bit more reading material for you. This is why it's so important to diagnose it the right way too.

Thanks again, Ron

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