Fuel Pump Relay keeps failing

[liverlips]

Howdy mates.  Used 2019 T22, bought in late July with just under 200 hours.  I've put 45 hours on it to date.  3 weeks ago, had the boat out for a few hours in the morning, docked and shut down for lunch, came back to it, wouldnt start (engine cranks fine...turn off, turn on, note that I dont hear the sound of the fuel pump "getting ready").  Troubleshooting found fuel pump relay to be culprit.  Replaced and I'm up and running.  Next outing a week later was uneventful.  Next outing after that was yesterday: Dropped boat in the water, wouldnt start, same symptoms as last trouble.  I immediately replaced fuel pump relay and it started right away.  Didnt have any more spare relays, so I spent the next 5 hours on the water without ever turning the engine off (hope my impeller isn't shot cause there was plenty of idling happening).

So I'm a little worried I've got a bigger problem on my hands.  Does this sound like a known issue to anyone?  Thanks in advance for any advice!

 

[liverlips]

No Active Fault Codes, 4 Inactives (though I have yet to find their definitions anywhere):

1. SPN 1349 FMI 5
2. SPN 924 FMI 5
3. SPN 3222 FMI 4
4. SPN 3232 FMI 4

Edited October 1, 2020 by liverlips
typo

[csleaver]

I would look at the condition of the pins and harness at the relay fuse box.  Voltage drop from poor connections is hard on electrical components.

[JaredW00]

Came across this looking for code my boat is throwing spn 3222 fmi4: did you have any luck?

[tomthack13]

My 2019 Malibu is kicking out an alarm code spn 3232. Any idea what it means? 

[csleaver]

SPN 3232 is for the bank 1 post catalyst Heated Exhaust Gas Oxygen sensor circuit. 

[tomthack13]

Thank you @csleaver. Do you know how urgent this is to get addressed? Trying to figure out if i need to cut the vacation short or if I'll be okay for a few more days. 

[csleaver]

It is likely a sensor or emissions related issue and should not affect the operation of the engine, but the fault alarms may be annoying.