Thread: rxpx walbro issue
08-19-2010, 07:37 PM #1
rxpx walbro issue
on initial install i got codes p0231, p0232
just re- installed a walbro fuel pump using the attached diagram.
once i put the key on, i get codes p0231 and p0232
help, please... how are you guys installing a walbro on 08 + models?
08-19-2010, 07:59 PM #2
Weird you should only get one code if the pump is drawing more amp's. Check the main fuse and then plug your stock pump in and see if the codes clear.
08-19-2010, 08:52 PM #3
08-19-2010, 09:34 PM #4
I installed the one I bought from Summit Racing in my 08 RXPX using the factory wireing, original fuse, and added Inovate LM2 to the same circuit without any issues at all. Have made many WOT runs and long rides, still no issues, codes, or blown fuses...
08-19-2010, 09:39 PM #5
Without looking up those codes up... I'm not sure what they are??? However... if you wired that bosch SPDT relay up per the diagram pictured, it should work just fine
08-19-2010, 09:54 PM #6
- Join Date
- Aug 2009
- Discovery Bay, CA
i straight swapped mine w/ the slight modification to the "top part" of the fuel pump housing to allow the larger walbro to "clock" into position with no fuse or any code's thrown. you were able to get away with your turbo set-up and no walbro?
08-19-2010, 10:14 PM #7
After looking closer at your diagram I have a hunch (I'm no expert) that your problem may be in your "chasis ground", I'm almost certain that the ground needs to be wired back to the OEM ground connector so it will pull ground through the ECM. The power voltage wire shown on your diagram appears to be correct (straight from the fuse block) and is energized once the lanyard is installed on the DES post and the OEM relay is closed. The ECM monitors the resistance of the circuit and throws a code if its not within a perimeter. To much resistance throws one of the POCODES, I'm almost certain to little will do the same. The ECU should see approcimately 12 ohms on the ground, if its not used the ECU will detect a open circuit (broke wire). Just a theory, maybe someone with a complete understanding will chime in on this!!!
08-20-2010, 07:04 AM #8
08-20-2010, 07:41 AM #9
08-20-2010, 03:32 PM #10
- Join Date
- Sep 2007
- Lexington, Ky
I think dnielsen hit the nail on the head. The electronics are ground switched, not postive power switched in 4tec SeaDoo's. I'll have to agree with the others that the added relay isnt usually needed, and adds another problem I've heard about. Which is that the ECU can detect the pump isn't drawing the power it should when using an added relay, which will cause it to throw a code. Just some things to think about.
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