Re: Stumbling at low RPMs

[Robert Phelan <centuri@xxxxxxxxxxxx>]

First of all, my favorite answer:  Check your plugs, cap, and rotor. 
It could be related to your problem, and it's almost always a good 
idea to change them out if it's been a while.

Next up:  (Someone tell me if I'm wrong)   I believe you have the 
in-tank fuel transfer pump that the rest of the E30s do.  If the fuel 
transfer pump fails, your main pump has difficulty drawing the fuel 
from the tank.  This would be indicated by the problems being more 
apparent when the gas tank is almost empty.

Welcome to the active side of the list.

Robert

At 6:48 AM -0700 1/31/03, Shaun Dustin wrote:
>Ive been lurking for a while, and now need some help. I have a 91 318i
>E-30 with the M42 engine. In the last 50 miles or so, its started to have a
>hard time at the low end of the RPM rangestumbling and missing, not much
>power. I changed the fuel and air filters about 500 miles back, but other
>than an oil change, those are the only recent changes. It only seems to
>happen in the low end, between idle (750 RPMs) and 2500-3000 RPMs. I dont
>feel it above 3000. I guess the best way to describe it would be
>underpowered through that band with an occasional kick in the back as it
>randomly fires correctly, if that makes sense. Any ideas would be
>appreciated.


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