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Thread: Engine code help please!

  1. #1
    Join Date
    Mar 2017
    Location
    Alexandria Bay, NY
    Posts
    48
    Boat
    RZ4

    Engine code help please!

    If anyone can help it would be appreciated. I keep getting a service engine warning on my 2009 rz4 with pcm ex 343. Seems to always pop up when I am just above 3000 rpms (i really dont go much faster than that for the most part) it hasnt happened at all when idling. I took to tige dealer (both within 200 miles of me have only been dealers for a couple years) and he put on computer. He said i was getting spn: 520197 FMI: 4 Voltage below normal or shorted low.

    Other issues i have had was a busted serpentine belt, but everything seemed to move freely, and still getting warning after replacing. I have had the info screen stop receiving data (all titles are there with no numbers at all in the fields) and depth sounder is intermittenly not working ( read 949 ft in 30 ft of water, and read 3 ft in 400 ft of water)

    Boat seems to be running great, no noises, starts easily, etc. Not sure if it is a wiring issue, battery issue (reads 13.6 volts while running, 12.3 battery voltage and 12.0 ignition voltage) or an alternator issue.

    Again any help is appreciated as the dealer really didnt seem to know.

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  2. #2
    Join Date
    Jun 2015
    Location
    Southern OR
    Posts
    125
    Boat
    2015 Z3 with AVX/ 2007 Calabria ProV
    That code is for knock senor #2. Did your dealer replace that sensor?

  3. #3
    Join Date
    Mar 2017
    Location
    Alexandria Bay, NY
    Posts
    48
    Boat
    RZ4
    No, just printed out the report

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  4. #4
    Join Date
    Mar 2017
    Location
    Alexandria Bay, NY
    Posts
    48
    Boat
    RZ4
    Can anyone on here sell me the sensor?

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  5. #5
    Join Date
    Mar 2017
    Location
    Alexandria Bay, NY
    Posts
    48
    Boat
    RZ4
    Or is this something i can get at napa? And can I fix it myself?

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  6. #6
    Join Date
    Mar 2017
    Location
    Alexandria Bay, NY
    Posts
    48
    Boat
    RZ4
    Quote Originally Posted by JCP View Post
    That code is for knock senor #2. Did your dealer replace that sensor?
    Is that one port or starboard side

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  7. #7
    Join Date
    Jun 2015
    Location
    Southern OR
    Posts
    125
    Boat
    2015 Z3 with AVX/ 2007 Calabria ProV
    Starboard


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  8. #8
    Join Date
    Mar 2017
    Location
    Alexandria Bay, NY
    Posts
    48
    Boat
    RZ4
    Quote Originally Posted by JCP View Post
    Starboard


    Sent from my iPhone using Tapatalk
    Of coarse it is the side harder to get at.

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  9. #9
    Join Date
    Jun 2015
    Location
    Southern OR
    Posts
    125
    Boat
    2015 Z3 with AVX/ 2007 Calabria ProV
    Quote Originally Posted by trevor View Post
    Of coarse it is the side harder to get at.

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    8 year old boat. You might consider doing both if they aren't too expensive.


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  10. #10
    Join Date
    Mar 2017
    Location
    Alexandria Bay, NY
    Posts
    48
    Boat
    RZ4
    Quote Originally Posted by JCP View Post
    8 year old boat. You might consider doing both if they aren't too expensive.


    Sent from my iPhone using Tapatalk
    Will do. It looks like autozone has the same exact knock sensor (appearance and supposedly for a 5.7 chevy 350 block) under a different part number for $30 a piece vs a nautique dealer online for 70 plus shipping. Do you know if these are different through pcm or if any gm 5.7 350 block sensor will work? It is only a hundred bucks different bit why waste money if they are the same thing with the price doubled since they wrote marine on it.

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  11. #11
    Join Date
    Mar 2017
    Location
    Alexandria Bay, NY
    Posts
    48
    Boat
    RZ4

  12. #12
    Join Date
    Jun 2015
    Location
    Southern OR
    Posts
    125
    Boat
    2015 Z3 with AVX/ 2007 Calabria ProV
    I was thinking that you had a Ford engine, if it is a GM bank 2 is port side.


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  13. #13
    Join Date
    Aug 2010
    Location
    Long Beach, CA
    Age
    42
    Posts
    1,003
    Boat
    1999 2100i
    Those auto zone sensors are the same as the overpriced ones, all GM compatible.
    Fixing everyone elses boat just so I can use mine...

  14. #14
    Join Date
    Mar 2017
    Location
    Alexandria Bay, NY
    Posts
    48
    Boat
    RZ4
    Thanks everyone!

    Sent from my SM-G935V using Tapatalk

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