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Author Topic: Fault code  (Read 1462 times)

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Omega Nige

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Fault code
« on: 24 October 2023, 19:44:21 »
Hi all, my 3.2 won't start again, not long since I replaced the crank sensor. It's now come up with the code P1792 ECM communication malfunction. Any ideas? Thanks 😊
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TheBoy

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Re: Fault code
« Reply #1 on: 24 October 2023, 20:01:02 »
Any codes in gearbox or ABS?
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Grumpy old man

Omega Nige

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Re: Fault code
« Reply #2 on: 25 October 2023, 10:30:51 »
Just checked nope, and no lights on the dash. Im going to disconnect the battery and see if that resets it. Im a member of the AA so I can call them out and see if they can see the fault in there kit. keep you posted. :y
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TheBoy

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Re: Fault code
« Reply #3 on: 26 October 2023, 16:50:56 »
So if nothing in the ABS or TCM, you need to look at live data for sensors directly connected to the ECM, such as throttle, MAF, coolant temp and so on.
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Grumpy old man

biggriffin

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Re: Fault code
« Reply #4 on: 26 October 2023, 20:22:03 »
 Check all the earths, especially the "soldered" ones in the loom.. Dr-G might be a long soon and be more accurate were they are.
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