Messages

1

Engine management / Off idle stumble - where to look next?

« on: March 28, 2013, 10:05:52 AM »

Hi All - I'm chasing an off idle stumble my 91 318is has. It REALLY bothers me!

I believe I've eliminated all vacuum leaks with new hoses, I've replaced both intake gaskets, cleaned injectors, put in new air filter, fuel filter and plugs. Plug wires look good but I have ordered a COP kit to replace them anyway as the car has 188K on it and have no idea when/if they were replaced.

The car had a terrible stumble whenever I accelerated but new plugs (the wrong ones were in there) cured 98% of the issue.

Here are my current 'symptoms' - when car is cold it appears to idle and accelerate just fine (idle is smooth and right around 800 rpm). As it warms (temp gauge off the blue box to the middle range where it stays) is when the off idle stumble/bog occurs. It is just when pulling away in first and sometimes when going from off throttle to feathering it on in other gears. If I pull away hard it does not seem to be an issue. Something else I've noticed is that once warm, the idle climbs to 1000-1100 rpm but fairly steady (sometimes a quick stumble but nothing regular).

I'm thinking maybe an o2 sensor or the coolant temp sensor. Any thoughts if I'm going down the correct path? Is it possible to test those two items or is it just a replace and see what happens type job?

Any other places to look/advice would be appreciated too!

2

General Topics / Instrument cluster removal / jumpy temp gauge

« on: January 22, 2013, 07:31:10 AM »

Thanks all for the info.  I have yet to do a intro post - will get a few good pics and then do that.  And yes, I am a Ducatisti - currently have a 2011 Multistrada 1200s Sport :-)

Welcome to the club!
post up some pics and introduce yourself!?
Are you a Ducatisti?

And depending on where you live either wait till you get home from driving it with dash vents open and heat on full or wait for a nice warm sunny day as plastic tends to crack when cold. It really isnt that hard...
Follow the steps documented in this odometer gear repair on how to get control pod out:
http://m.odometergears.com/howto/E30_BMW_MotoMeter_and_VDO_Odometer_Gear_Replacement.pdf

3

General Topics / Instrument cluster removal / jumpy temp gauge

« on: January 21, 2013, 08:15:55 AM »

Hi all. Picked up a new to me 91 318is over the weekend. Loving it so far!  The temp gauge jumps around and reads high. If I tap on the dash it drops back down. It has been suggested that there is a ground that needs to be cleaned and tightened on the back of the instrument cluster. Can someone let me know how to get the cluster out?  Do I need to remove the steering wheel?  If so, how does that come out - I've never removed a wheel that has an airbag.

Thanks!