GT40 diagnostic codes |
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man0seven
Senior Member Joined: September-16-2018 Location: Utah Status: Offline Points: 122 |
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Posted: October-31-2018 at 6:31pm |
Hi all,
Is there a resource for all the diagnostic codes for the GT40? We took our ‘98 SN to a mechanic and he was not able to make sense of the code 40 that it put out. Thanks in advance Brian |
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2005 Ski Nautique
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JayG80
Senior Member Joined: January-07-2007 Location: United States Status: Offline Points: 170 |
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Seems like your mechanic should have a manual for the code reader with a code list.
I bought a Innova Ford Code Reader so it may have no relevance to what your guy used. Plus I have used it once so I'm not an expert. My manual does not have a code 40 listed in the Fault Code Definitions list. No 10,20,30,50,60,70,80 or 90. It does describe a cylinder balance test procedure. The computer compares the power contribution that each cylinder makes to engine operation. If a cylinder isn't contributing at the same level as the others then the computer sends a 2 digit code to the Code Reader. 10 Cylinder 1 has a problem 20 Cylinder 2 has a problem 40 Cylinder 4 has a problem 90 System is OK Left off the other 30, 50 etc for brevity. Seems like your mechanic would have to know how to get into the proper test sequence to perform this test. There are several pages to it that I didn't bother to read. I see one of the things is to tap on the accelerator pedal 3 times. Not sure if this is any help or not. |
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2007 Ski
2002 Ski |
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man0seven
Senior Member Joined: September-16-2018 Location: Utah Status: Offline Points: 122 |
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Thanks Jay.
This is helpful. I ended up changing all of the injectors and I think I was able to resolve all of the issues. Brian |
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2005 Ski Nautique
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