Drivetrain Malfunction (X3M not running)

dmanb2b · 12-09-2022, 08:31 AM

Quote:

Originally Posted by leorod_rn

So just got the X3M back today. Dealer ended up installing new fuel pump and removing the old fuel and placing new one as well. They said the fuel pump wasn’t working properly besides the 89 octane fuel surprise.

Do you guys think the Racechip had anything to do with the fuel pump going bad?

Unlikely! Did the mention which fuel pump went bad? Tank or on of the HPFPs?

leorod_rn · 12-09-2022, 08:38 AM

Quote:

Originally Posted by dmanb2b

Unlikely! Did the mention which fuel pump went bad? Tank or on of the HPFPs?

I don’t have the sheet with me but if I recall reading it was the high pressure or low pressure fuel pump.

leorod_rn · 12-09-2022, 08:42 AM

I’m just debating whether or not to install the Racechip again. Would like some insight on whether you guys think it was related to the fuel pump going bad or not?

Oldgixxer · 12-10-2022, 05:34 AM

I mean the RC is only increasing boost 2-3psi at best,I highly doubt that puts a heavy toll on the pump. Strictly my uneducated opinion though.

12-09-2022, 08:42 AM	#25
leorod_rn Private First Class 223 Rep 124 Posts Drives: 2022 BMW X3M Join Date: May 2020 Location: Miami, FL iTrader: (0) Garage List 2022 BMW X3M [0.00]	I’m just debating whether or not to install the Racechip again. Would like some insight on whether you guys think it was related to the fuel pump going bad or not?
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12-10-2022, 05:34 AM	#26
Oldgixxer Captain 2003 Rep 833 Posts Drives: nothing fast Join Date: Jan 2020 Location: The Lowcountry,SC iTrader: (0)	I mean the RC is only increasing boost 2-3psi at best,I highly doubt that puts a heavy toll on the pump. Strictly my uneducated opinion though. __________________ -'24 X5MC,'22 430i -'09 Busa,'05 GSXR-1K(GT28R turbo)'00 Busa(GT3582) Gone but not forgotten: -'22 X3MC,'20 M550i,'18 X2,F30 328xi,'07 E63 AMG (1st W211 63 in the 11s),997 C4S Cab,CLS55 AMG,E55 AMG,C55AMG
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