M42club.com - Home of the BMW E30/E36 318i/iS
DISCUSSION => Engine + Driveline => Topic started by: E36m42 on April 21, 2014, 01:43:36 PM
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So last Sunday I cruised with the car for a few hours. Couple windy roads but never really pushed it just really cruised with it 35~45 mph. So on the way back home I get on the highway and again I just ease into speed ~80 mph and I get a rotten egg smell but there was a new vehicle ahead of me and thought maybe it's just his cats and the smell went away. Well a little later on down the road my car started acting up. I pushed it full throttle and it went nowhere. Before in 5th if I floored it as soon as it hit 4000 rpm the dasc would do it's thing and quickly climb up on speed but now it can't even get out of its way. Going up a hill full throttle it keeps the rpms steady won't even budge I can't even feel the dasc coming on. Another thing I noticed is when idle the exhaust sounds a little different and the flow of it is different. It is no longer steady it's almost like I have a v twin engine without the sound. What could this possibly be? I'm thinking a clogged cat by there is no CEL and I have an oxygen sensor after the cat so shouldn't it show on the dash if the car is bad? the only code I could pull of is 1286 for the knock sensors but I was told from someone else that the code doesnt mean much since they have had it for 7 years even after changing them and nothing changed. What do you guys suggest since you guys are the gods of these engines :) I really need help with this thing I dont know where to look anymore. So far I havent done anything to it other than testing the coils and looking for vaccum leaks. I'm ordering a fuel filter although it was changed two years ago its the cheapest and easiest place to start.
Any thoughts? the car is a 1993 bmw 318is 5-speed built in germany
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did you check your spark plugs,if not do it and i would also check the compression to
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I just changed the fuel filter and it runs much better I'm thinking about pulling the plugs and checking them also just to be sure. This weekend I'm doing so. We'll see what happens