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Brian 89 325i

E30 Fanatic

Join Date: Oct 2003

Posts: 1450
#1

Black smoke?

08-08-2004, 10:37 PM

Today, my brother was driving behind me and noticed that when i go WOT it spits out black smoke from the exhaust. My question being, what is the most likely cause of this. My enging has about 180k on it.

Brian

P.S. I have noticed higher oil consumtion latley, but my head is also leaking more.
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BavarianBimmer

E30 Modder

Join Date: Oct 2003

Posts: 951
#2

08-09-2004, 01:17 AM

I think your car is running a bit rich

1989 E30 318iS_______________________________1989 E30 325iC M-Technic I
1997 E36 328iT
1990 E30 325iT 24v SOLD
1989 E30 325i 2.7i M-Technic II SOLD
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Brian 89 325i

E30 Fanatic

Join Date: Oct 2003

Posts: 1450
#3

08-09-2004, 01:13 PM

Ok, Thats what i figured too, Running rich. Now to figure out why? Engine is stock,as is the fuel system. Leaking injectors maybe? Bad FPR?

Brian
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randomtask37

No R3VLimiter

Join Date: Oct 2003

Posts: 3154
#4

08-09-2004, 01:14 PM

could be the o2 sensor going bad also.

98 M3/4/5
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BavarianBimmer

E30 Modder

Join Date: Oct 2003

Posts: 951
#5

08-09-2004, 02:28 PM

I was thinking the same, but doesn't have our ECU's an emergency funtion ?

1989 E30 318iS_______________________________1989 E30 325iC M-Technic I
1997 E36 328iT
1990 E30 325iT 24v SOLD
1989 E30 325i 2.7i M-Technic II SOLD
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e30Matt

R3V Elite

Join Date: Dec 2003

Posts: 5077
#6

08-09-2004, 05:00 PM

At WOT the car cuts out the O2 sensor signal and runs closed-loop....

"See, we're adding a little something to this month's sales contest. As you all know, first prize is a Cadillac Eldorado. Anyone wanna see second prize? Second prize is a set of steak knives. Third prize is you're fired."
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