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05-21-2014, 10:15 PM
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#1
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2nd Gear Member
Join Date: Jul 2013
Location: Mississauga, Ontario
Posts: 203
Car: S52 Swap 91 318is
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Fuel Pump or Fuel Pump main relay????
Hey Guys !
Last week my E30 Stopped running while I was driving, fuel stopped going to the engine and it just died on the road.
I recently changed the Fuel Filter so I know its not that,
Ive narrowed it down to Fuel Pump and Fuel pump main relay. I took out the rear seat, held my ear to the fuel pump cover while someone started it and couldnt hear anything except the motor trying to start.
Anyone got anything? Im trying to get this fixed asap
Thanks !!
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05-21-2014, 11:09 PM
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#2
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2nd Gear Member
Join Date: Aug 2012
Location: GTA
Posts: 130
Car: e30
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Hi
It could be the fuel regulator or fuel pump connector that has corroded or fuel relay. Did you work in that area recently?
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05-22-2014, 12:19 AM
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#3
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2nd Gear Member
Join Date: Jul 2013
Location: Mississauga, Ontario
Posts: 203
Car: S52 Swap 91 318is
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Fuel Pump was changed 2 years ago, so someone did.
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05-22-2014, 06:30 AM
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#4
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3rd Gear Member
Join Date: May 2012
Location: mississauga
Posts: 396
Car: e36 332i
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check for voltage at the fuel pump plug and if you get 12 volts you will know that it is the fuel pump that has failed and not the relay
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05-22-2014, 07:56 AM
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#5
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Parts hoarding partner...
Join Date: Nov 2007
Location: Toronto
Posts: 3,428
Car: 325IS 87-325IC 92-IC
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You have to know which model pump you have based on the year of the car. If it's a late 325 you probably have a single fuel inlet with 2 connectors. if it's earlier model pre 88 then it's a duel inlet pump. if it's a 318 its a dual inlet with a twin connector. the black connector on all is the sending unit. Some have a flat spade connector and some have the pin connector.
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05-22-2014, 03:49 PM
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#6
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2nd Gear Member
Join Date: Aug 2012
Location: GTA
Posts: 130
Car: e30
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Hi
It should be the fuel connector there is one on ebay, or u can just find a e36 wire harness with fuel connector I think it will work for e30 fuel pump as well
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05-22-2014, 05:36 PM
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#7
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Parts hoarding partner...
Join Date: Nov 2007
Location: Toronto
Posts: 3,428
Car: 325IS 87-325IC 92-IC
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pumps get around 200k out of them. Seen this happen quite a few times.
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05-22-2014, 06:44 PM
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#8
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op sucks cock
Join Date: Jun 2004
Location: T.
Posts: 17,925
Car: E46 M3, YZF-R6
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Quote:
Originally Posted by DET1990
check for voltage at the fuel pump plug and if you get 12 volts you will know that it is the fuel pump that has failed and not the relay
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/thread.
__________________
I run a canadian led kit & hid kit company, if you have any questions about led headlights or hid kits in canada or would like to check out our products please contact me here: http://absolutehid.ca
2002 TiAg M3 6mt deoranged, dechromed, led tails, ZHP knob, UUC SS v3, GROM, OEM 220M 19's, Michelin Supersports
2006 YZF-R6, bunch of go-fast stuff
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05-29-2014, 09:07 PM
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#9
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2nd Gear Member
Join Date: Jul 2013
Location: Mississauga, Ontario
Posts: 203
Car: S52 Swap 91 318is
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Late update, but I found out in the end it was in fact the fuel pump. Had it replaced and shes runnin perfect again !
Thanks guys !
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05-29-2014, 11:43 PM
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#10
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2nd Gear Member
Join Date: Aug 2012
Location: GTA
Posts: 130
Car: e30
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How much u spend on your fuel pump? It cost A fortune from dealership...
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05-30-2014, 12:25 AM
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#11
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2nd Gear Member
Join Date: Jul 2013
Location: Mississauga, Ontario
Posts: 203
Car: S52 Swap 91 318is
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Quote:
Originally Posted by bimmere30
How much u spend on your fuel pump? It cost A fortune from dealership...
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I got full assembly (Pump+sending unit) for $230. To be honest I didn't shop around much and just wanted to get it running asap
Sent from my iPhone using Tapatalk
__________________
My accumulation of E30s so far..
1991 318is - Rustbucket
1984 318i - Hennarot M50 Swap
1992 Convertible - MTECH 2
1991 318is - S52 Swapped
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