2007 Holden Commodore Warning message

Tiny
MISTERWALKER
  • MEMBER
  • 2007 HOLDEN COMMODORE
  • 3.6L
  • V6
  • RWD
  • AUTOMATIC
  • 135,000 MILES
This particular problem surfaced some months ago and ended up with the computer shutting down the engine.
An engine block sign with a lightening bolt in the middle shows on the dash with a corresponding orange symbol to the right and a message saying "Check Drivetrain".
The roadside assist mechanic reset the computer using a diagnostic tool after checking all the basics.
It has come up again, so I figure it must be a faulty sensor somewhere in the system.
I noticed today that it came up after I put the car into neutral to stop the clunking in the rear I asked about earlier.
It may just be a coincidence.
I disconnect the battery for a few minutes to reset the computer and that stops the problem for a while.
I'm very limited with funds, so that's why I'm asking you instead of taking it to a repairer.
Perhaps there's something I can do to correct the problem.
U.S. Code scanners don't work on Aussie cars, otherwise I'd simply connect the cheap one I mistakenly bought on line and fix the hassle.
Hope you can help.
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Sunday, July 12th, 2015 AT 1:34 AM

5 Replies

Tiny
MHPAUTOS
  • EXPERT
I will need an OBD 11 scan code to move on with this problem, but with the KM's you may be getting a cam correlation code which is not uncommon, this is an expensive fix but before jumping to conclusions I do need a code that has set off the MIL
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Sunday, July 12th, 2015 AT 5:30 AM
Tiny
MISTERWALKER
  • MEMBER
Hello,
I managed to borrow a scanner and it came up with code number PO521
which reads as "Engine Oil Pressure Sensor/Switch Circuit Range/Performance.
Now, I was under the impression that there was only one oil pressure sender located under the filter housing. I've gone ahead and bought a new sender unit, but haven't fitted it yet.
Apparently there is a multi-sensor at the rear of the engine as well.
Damned if I can find it. I won't do anything until I've heard your opinion.

Thanks,

Bob.
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Tuesday, July 14th, 2015 AT 8:02 PM
Tiny
MHPAUTOS
  • EXPERT
It will be the oil pressure sensor below the oil filter, very common problem.
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Wednesday, July 15th, 2015 AT 1:55 AM
Tiny
MISTERWALKER
  • MEMBER
Thanks for your response. I'll let you know the outcome.
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Wednesday, July 15th, 2015 AT 8:46 AM
Tiny
MHPAUTOS
  • EXPERT
OK good luck with this.
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Thursday, July 16th, 2015 AT 3:20 AM

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