M42club.com - Home of the BMW E30/E36 318i/iS

DISCUSSION => Engine + Driveline => Topic started by: slong27 on May 24, 2013, 10:24:17 PM

Title: engine stumbles
Post by: slong27 on May 24, 2013, 10:24:17 PM

Anyone have any ideas for this. 91 m42 rebuilt several years ago. Recently after driving for a mile or so when cruising at mid throttle the engine seems to forget where the throttle is and starts to stumble for no good reason. Replaced the tps without any effect. If you apply WOT engine pulls fine without any problems. 

Title: Re: engine stumbles
Post by: alpine on June 01, 2013, 12:41:52 PM

i have been having a very similar issue at idle.. i have replaced everything.. not sure what it is. would be curious to knwo whats up!

Title: engine stumbles
Post by: bme30 on June 01, 2013, 01:33:13 PM

Vac leak?
Plugs/wires?
Fuel pump/fuel filter?

Try those if you didnt already

Title: Re: engine stumbles
Post by: slong27 on June 03, 2013, 01:57:20 PM

thanks bme30. I'll check these and see what I can find.