Welcome to our BMW Forums

steve318is · 10-12-2008, 01:18 AM

I tried to start 318is this afternoon...it started firing and then it sputtered, then just went dead. I went to try and start the car again, and when I turned the key over just before starting. I noticed I did not hear my fuel pump. I lifted my back seat to get at the top of my fuel tank, and I found I had no power going to my fuel tank. But I had power to my fuel level sensor. I'm thinking that it is one of my fuses in my fuse box that has no power.
If anyone has any input or suggestions on what could be wrong, help!?

DS Rook · 10-12-2008, 08:17 AM

Fuel pump relay

320iCar · 10-12-2008, 11:00 AM

or maybe it just sputtered and died. if power is being sent to the unit, but its not running, new fuel pump time.

DS Rook · 10-12-2008, 11:39 AM

Originally Posted by steve318is

I tried to start 318is this afternoon...it started firing and then it sputtered, then just went dead. I went to try and start the car again, and when I turned the key over just before starting. I noticed I did not hear my fuel pump. I lifted my back seat to get at the top of my fuel tank, and I found I had no power going to my fuel tank. But I had power to my fuel level sensor. I'm thinking that it is one of my fuses in my fuse box that has no power.
If anyone has any input or suggestions on what could be wrong, help!?

This is what I am going by.

bimmer_adam · 10-12-2008, 11:56 AM

well it should be the same for you 1.8's and yesguys your right. most of the time if its intermittent its the relay, grab another one of us with an e30 swap the relay for a sec, if i dont fire, try a fuel pump....

redhatpat · 10-14-2008, 11:29 AM

Originally Posted by DS Rook

This is what I am going by.

Reading comprehension is under rated.

adrian_325 · 11-25-2008, 05:27 PM

what happened. did you get things sorted out and working after?

Weeman83 · 11-25-2008, 06:03 PM

Power to your fuel pump is only a split second when you first turn the key to on to prime the fuel rail. You need to pull the key out, and cycle it again to get that one second blip to happen again. With the Key ON and the car off, you will NOT have 12V there.

Have you tried checking voltage at the pump while cranking? 12V should be present at this time.

hthrstok · 04-28-2010, 12:46 PM

Originally Posted by bimmer_adam

well it should be the same for you 1.8's and yesguys your right. most of the time if its intermittent its the relay, grab another one of us with an e30 swap the relay for a sec, if i dont fire, try a fuel pump....

any ideas which one is the fuel rely id be gratefull for any help

hthrstok · 04-29-2010, 02:09 PM

Originally Posted by DS Rook

Fuel pump relay

hiya how do i find out which one is the fuel pump relay

10-12-2008, 01:18 AM	#1 (permalink)
steve318is newbie Joined: Aug 2008 From: Surrey Posts: 7 iTrader: 0 Thanks: 0 0 Times in 0 Posts	318is Engine turns over but won't start I tried to start 318is this afternoon...it started firing and then it sputtered, then just went dead. I went to try and start the car again, and when I turned the key over just before starting. I noticed I did not hear my fuel pump. I lifted my back seat to get at the top of my fuel tank, and I found I had no power going to my fuel tank. But I had power to my fuel level sensor. I'm thinking that it is one of my fuses in my fuse box that has no power. If anyone has any input or suggestions on what could be wrong, help!?

10-12-2008, 11:00 AM	#3 (permalink)
320iCar Senior Member Name: Ian Joined: Sep 2008 From: Richmond, BC Posts: 274 iTrader: 0 Thanks: 3 2 Times in 2 Posts	or maybe it just sputtered and died. if power is being sent to the unit, but its not running, new fuel pump time. __________________

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
E30 325IS hard start	toyotahachiroku	3-Series	24	03-17-2011 02:13 PM
1991 E30 318is won't start. No power at all in the car?	318is	3-Series	6	05-09-2009 08:21 PM
318i 1993 with m42 engine won't start? Help	bleuet6	3-Series	6	02-20-2009 09:16 AM
BMW 318is E36 engine vibration.	an-lone	3-Series	3	07-28-2006 03:30 AM
grijo's e28 M5	grijo	Bimmer Showroom	24	12-09-2004 03:18 PM

New To Site?	Need Help?
Register to Participate View Forum Leaders Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read

10-12-2008, 08:17 AM	#2 (permalink)
DS Rook Senior Member Joined: May 2007 From: Northshore Posts: 548 iTrader: 0 Thanks: 2 6 Times in 6 Posts	Fuel pump relay

10-12-2008, 11:56 AM	#5 (permalink)
bimmer_adam Senior Member Supporting Member Joined: May 2006 From: White Rock Posts: 582 iTrader: 0 Thanks: 1 1 Time in 1 Post bimmer_adam's pictures	well it should be the same for you 1.8's and yesguys your right. most of the time if its intermittent its the relay, grab another one of us with an e30 swap the relay for a sec, if i dont fire, try a fuel pump....

11-25-2008, 05:27 PM	#7 (permalink)
adrian_325 Member Name: Adrian Joined: Jun 2007 From: Parkisville Posts: 76 iTrader: 0 Thanks: 7 8 Times in 7 Posts	what happened. did you get things sorted out and working after?

11-25-2008, 06:03 PM	#8 (permalink)
Weeman83 Senior Member Joined: Oct 2007 From: Richmond Posts: 1,293 iTrader: 0 Thanks: 13 14 Times in 9 Posts Weeman83's pictures '91 BMW 318IS	Power to your fuel pump is only a split second when you first turn the key to on to prime the fuel rail. You need to pull the key out, and cycle it again to get that one second blip to happen again. With the Key ON and the car off, you will NOT have 12V there. Have you tried checking voltage at the pump while cranking? 12V should be present at this time.

Welcome to our BMW Forums

318is Engine turns over but won't start