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rdbusch11 · 11-10-2009, 11:10 PM

Two days ago I jump in my 1991 318is m and drive down the block normally shifting around 3-4000 rpm and all of a sudden the engine begins to sputter. it felt like a spark plug wire had come lose. I pulled over and checked the wires and they were fine but the car still sputtered. I ran to the parts store and bought new plugs but the problem still exist Its weird has anyone had a similar problem what should I do next

**Blackice** · 11-12-2009, 07:22 PM

Have you had any luck on this one ?

I have a similar problem with my car, but it is very random. Some days it runs perfect, and there is no way I can even try to make it act up. Other days it just wont go away.

Do you have any more info about how this car is acting up ?

Mine seems to be a rough on warm starts, more often then cold starts.
It will go away if I restart the car, or if I put my foot to the floor, then it runs perfect again. My gut feeling is temp sensor, it makes the most sense..... I have yet to prove it

1rft2 · 11-15-2009, 05:40 PM

Had a similar problem with my e46. Turned out to be a split in the inlet bellows causing a vacuum leak which was giving the MAP [manifold absolute pressure] sensor a false signal [usually richens the mixture].

Branan · 11-20-2009, 01:09 PM

might be temp sensor, could be alot of things though.
I had ongoing probs with my car for years. Turn out to be the Throttle Position Switch.

Lithium · 11-20-2009, 11:54 PM

Sounds like it's probably only running on four cylinders......

Shocka · 11-21-2009, 02:57 PM

I would check ignition maintance parts, coil packs, wires etc.

11-10-2009, 11:10 PM	#1 (permalink)
rdbusch11 newbie Name: Raymond Joined: Nov 2009 From: Honolulu Posts: 1 iTrader: 0 Thanks: 0 0 Times in 0 Posts	Running rough (sputtering) Two days ago I jump in my 1991 318is m and drive down the block normally shifting around 3-4000 rpm and all of a sudden the engine begins to sputter. it felt like a spark plug wire had come lose. I pulled over and checked the wires and they were fine but the car still sputtered. I ran to the parts store and bought new plugs but the problem still exist Its weird has anyone had a similar problem what should I do next

11-20-2009, 01:09 PM	#4 (permalink)
Branan Senior Member Name: Ron Joined: Jan 2005 From: Vancouver Posts: 237 iTrader: 0 Thanks: 2 1 Time in 1 Post	might be temp sensor, could be alot of things though. I had ongoing probs with my car for years. Turn out to be the Throttle Position Switch. __________________ (OO=[][]=OO) '88 325is

11-20-2009, 11:54 PM	#5 (permalink)
Lithium Senior Member Name: Tim Joined: Jan 2009 From: Vancouver Posts: 131 iTrader: 0 Thanks: 15 4 Times in 4 Posts Lithium's pictures '89 BMW 325i	Sounds like it's probably only running on four cylinders...... __________________ Dirt E-30>

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11-12-2009, 07:22 PM	#2 (permalink)
Blackice Moderator Name: Dave Joined: Oct 2007 From: North Vancouver Posts: 1,088 iTrader: 0 Thanks: 43 47 Times in 46 Posts Blackice's pictures '91 BMW 318i '91 BMW 318IS	Have you had any luck on this one ? I have a similar problem with my car, but it is very random. Some days it runs perfect, and there is no way I can even try to make it act up. Other days it just wont go away. Do you have any more info about how this car is acting up ? Mine seems to be a rough on warm starts, more often then cold starts. It will go away if I restart the car, or if I put my foot to the floor, then it runs perfect again. My gut feeling is temp sensor, it makes the most sense..... I have yet to prove it

11-15-2009, 05:40 PM	#3 (permalink)
1rft2 newbie Name: Robert [Bob] Joined: Nov 2008 From: Vineland Posts: 12 iTrader: 0 Thanks: 0 0 Times in 0 Posts	Had a similar problem with my e46. Turned out to be a split in the inlet bellows causing a vacuum leak which was giving the MAP [manifold absolute pressure] sensor a false signal [usually richens the mixture].

11-21-2009, 02:57 PM	#6 (permalink)
Shocka Senior Member Joined: Jun 2008 From: Vancouver Posts: 362 iTrader: 0 Thanks: 4 11 Times in 10 Posts	I would check ignition maintance parts, coil packs, wires etc.

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Running rough (sputtering)