Topic: Think I hit fuel cut

[mudferret]

Both my level senders are pretty much pooched, although I do have between a third and a half tank right now based on odometer. Not sure if the fuel pump is getting tired too, the OEM pump failed on me in 2010 after ~75k km (at ~150k km now), perhaps this one is failing too? I'm sure Husky gas is doing my fuel system no favours.

Bigger log, but the highlighted cells at ~397 seconds were when I experienced the cut. No knock events to note at that point.

I'm sure I'm missing the key parameter...hopefully link works for you: https://docs.google.com/spreadsheets/d/1Yrg-QKNNV3MtG2bPlZN3OplIVAW213IedS15BM_cDEM/edit?usp=sharing

'06 WRX VF43, downpipe, tuned by Sunny, etc... etc... Specifics in link in my signature.

[RockThePylon]

What did the car do? Something happened, fer sher.

That's probably not "fuel cut", though. Fuel cut is an intentional event; from reaching a boost limit, rev limit, whatever. A weak fuel pump doesn't cause fuel cut.

[mudferret]

What did the car do? Something happened, fer sher.

That's probably not "fuel cut", though. Fuel cut is an intentional event; from reaching a boost limit, rev limit, whatever. A weak fuel pump doesn't cause fuel cut.

Sudden loss of power and a bit of a jolt like when my pump completely failed back in '10. Car kept driving/running this time though.

[Airboy]

You are leaning out toward the end of the log. Probably losing fuel pressure.

[darthekai]

Did you hit any big lateral gs near that time?

[mudferret]

Thanks Sunny, so fuel filter and/or pump are a strong possibility?

darkthekai, was going very straight, a very slight uphill grade.

[mudferret]

Was a fuelling issue, although not because of a fault in the fuel system. Battery was stupid weak and pump wasn't able to run fast enough.

Will be getting a new pump shortly however since my fuel senders are both tired, and might as well replace it all at once seeing as the pump is a 5 y.o. anyways.