2017 Z1 intermittent no start / fuel pump?

[Dman223]

Been on the water a couple times now with this new to me 2017 z1, it starts fine then after a little bit I turn it off for swimming and it won’t fire back up. The fuel pump makes no noise when this happens. I tried swapping the two relays that are similar, ones labeled fuel pump, and no dice. Today I just kept it running after a hard start until we were ready to take it out. I got it home and after sitting for a bit the fuel pump primed fine and it fired right up. What is this most likely going to be? I’ve read there’s several parts to these fuel pumps but I can’t find much more in depth info. Here’s a pic of the regulator(?), could that be going out intermittently or would it be something else? Thanks

[Dman223]

It also threw a pressure less than expected code

[ipm983]

Could be the electrical harness. Had a similar problem with my fuel pump… had it replaced a couple times, ended being the electrical harness.


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[Dman223]

ipm983 where abouts?

[ipm983]

ipm983 where abouts?

The other end connects right above the transmission… that cable is connected to the fuse box where your fuel relays are at.

https://inboardonline.com/harness-fu...module-801260/

Doublecheck the part number, but this should be it


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[Dman223]

ipm983 thanks! Were you also having intermittent fuel pump ?

[ipm983]

I would get low fuel pressure errors on mine… boat would no start. Finagled with the harness by unplugging and replugged and was able to get by. had the fuel pump replaced under warranty and would get the same error within about 6 hours… another fuel pump, same error… I ended up replacing the fuel harness and no issues!


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[Dman223]

ipm983 today I hooked up the hose and ran her, fired up but died within 5 seconds a few times in a row. Then I disconnected and reseated that cable from the opposite end and it started up and stayed running just fine. Looking like that may be my issue as well. Pretty crazy this is the newest boat I’ve owned and never had such silly issues on my older bow riders. Thank you so much for your help hopefully this solves it

[ipm983]

ipm983 today I hooked up the hose and ran her, fired up but died within 5 seconds a few times in a row. Then I disconnected and reseated that cable from the opposite end and it started up and stayed running just fine. Looking like that may be my issue as well. Pretty crazy this is the newest boat I’ve owned and never had such silly issues on my older bow riders. Thank you so much for your help hopefully this solves it

Yeah no worries… the littlest things can cause the biggest headaches! I always carry an extra harness on the boat just in case… they’re pretty inexpensive.


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[Dman223]

Haven’t gotten the new wire yet. Went out yesterday and the boat stalled twice and two times it hesitated while under power. Not too sure if that’s symptoms of a wire going bad. It’s $80 shipped which a little high for something that might not even fix it. Dealer said they’ve had 3 cases of the wire needing replacement on tiges

[Zackdogg]

I’ve had very similar problems on mine the last couple of weekends. Went into limp mode, throwing a code for fuel pressure, I had enough replaced the fuel pump(which included the regulator), pressure sensor, and filter. It ran fine until I hit a storm the following weekend, during the crazy rough ride back to camp it would just go from running fine to 0 RPM, probably close to a dozen times, which it also threw the same code as yours, but didn’t go into limp. That same wire, to the pump, was stretched kind of tight, so I added about a foot to those wires, rerouted it, and it ran perfect all weekend. My thought was that rough ride was pulling on the plug to the fuel pump, and losing contact. Fingers crossed it’s good now, I’m kind of out of options otherwise.


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[Dman223]

Zackdogg thats terrible man, sounds worse than mine but same stuff. Keep this thread updated please. The reason I doubt it’s the wire is because I ran my boat off the hose and disconnected the wire myself to see what happens and it’s not a sudden cut of the motor, it’s a more gradual stall that doesn’t happen right away. My wire also already has plenty of slack. I ordered the new one anyways. If it continues I’ll let the dealer figure it out since the weather here in New England is pretty terrible for the month of August it’s looking like.

[ipm983]

Zackdogg thats terrible man, sounds worse than mine but same stuff. Keep this thread updated please. The reason I doubt it’s the wire is because I ran my boat off the hose and disconnected the wire myself to see what happens and it’s not a sudden cut of the motor, it’s a more gradual stall that doesn’t happen right away. My wire also already has plenty of slack. I ordered the new one anyways. If it continues I’ll let the dealer figure it out since the weather here in New England is pretty terrible for the month of August it’s looking like.

It’s a gradual stall because once you disconnect, the pump is no longer pumping fuel into the engine..There’s a short in that wire that’s causing the pump stop receiving power. There’s no reset. That wire is a cheaper fix than replacing the fuel pump.


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[Dman223]

ipm983 my dealer said they don’t replace the wire they just use napa part #EC113 so if anything they seem to think these issues come down to the connector. I opted to get the whole wire from your link. Will be here tomorrow. I wana replace the fuel filter too before going back out.

[Dman223]

Also a sudden loss of power while throttled up doesn’t seem like something that would stem from a bad fuel pump connection since that does give a more gradual loss of power not a sudden one