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525 efi please help alarm going off codes 120 122 123

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Old 05-31-2018 | 08:24 AM
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Default 525 efi please help alarm going off codes 120 122 123

Hey guys I have a 2003 525 and the alarm is going off. The boat starts fine and Idles great but as soon as I put it in gear then throttle up a bit the alarm goes off. It will then shut off and I can usually rev to either 3000rpm or 4000rpm. It will act like I'm hitting the rev limiter at either of those RPMs . I don't have the service book so I'm pretty much stuck and my dealer is absolutely horrible. Codes are 120 122 123 fault 9 and fault 19 overspeed

thanks everyone
Paul
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Old 05-31-2018 | 09:28 AM
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Try this, the info should be buried in there somewhere. http://www.ibs-ny.com/freedom/Engine...e%20Manual.pdf Rinda scan tool will tell you also. If you don't have one and own a 525EFI, get one it will save you time, $, and aggravation.

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Old 05-31-2018 | 10:09 AM
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Originally Posted by VoodooRob
Try this, the info should be buried in there somewhere. http://www.ibs-ny.com/freedom/Engine...e%20Manual.pdf Rinda scan tool will tell you also. If you don't have one and own a 525EFI, get one it will save you time, $, and aggravation.
No diagnostics in that manual its the mechanical and system installs. AND believe it or not in any of the 525 service manuals you are not going to find a Fault code NUMBER description.period. It does not list the numbers per fault code.

If your location is close to Texas ?

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Old 05-31-2018 | 10:23 AM
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the overspeed is caused by guardian fault 9 and the guardian is caused by TPS issues. all 3 codes are TPS related

Now have to ask why is taking a boat in to the dealer a bad experience in your words horrible ? In my cause I sure would nt want my customers thinking that ? Plus at least they know ---- I know what I am doing and have been trained on this stuff.inside and out - up and down to no end.

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Old 06-04-2018 | 09:13 AM
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Hey guys the problem was a defective TPS sensor. I purchased a new AC DELCO one and it seemed to have solved the problem. When i was installing the engine the hook bent over and hit the factory one. I purchased an aftermarket one from the local parts store and it was bad. I did have one fault code of 124 no adapt but it seemed to run well.
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Old 06-04-2018 | 10:40 AM
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Man I should do this for a living, guessed right again - Post number 4.

so you changed the tps ( R & R) with battery power on ? Or the last one was totally bad or you unplugged it the TPS while the engine was running ?

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