318is Running Slugish - BMW Forum - BimmerWerkz.com
3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 07-11-2005, 01:31 PM
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I have a 1995 318is that runs perfectly when the engine is cold, however, when it reaches the normal operating temperature, it becomes very sluggish and has no power. Can it be some sort of sensor that is not performing well? Or, could it be something else? I'd appreciate any comments/ideas/suggestions.
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#2 (permalink) Old 07-13-2005, 10:14 AM
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My first guess would the temp sender this is under the inlet manifold the dealers can check it see if its read right. Its not that easy to change
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#3 (permalink) Old 07-13-2005, 01:29 PM
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Could be O2 sensor. The sensor isn't in effect until the engine reaches normal operating temp. When mine crapped out, i noticed a gradual decline in performance. The check engine light came on eventually, but you'd notice symptoms before the light comes on. Can you tell if your MPG is down?

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#4 (permalink) Old 07-15-2005, 06:04 PM
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yea i have the same problem with my 318 and it runs werid and when its hot and i floor it there is a delay from the pedal to the rpm guage
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#5 (permalink) Old 07-15-2005, 09:50 PM
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my car has always been the same way. i never figured it out, just lived with it. that's why i just start it and go!

1996 993 cab
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1989 b2200 rust bucket (holding on to dear life)
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#6 (permalink) Old 07-16-2005, 01:06 PM
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Mine has the same delay in acceleration you guys are talking about and sometimes has a rough idle and Im getting 16mpg. My check engine light went off awhile back but a 'check' light still comes on every now and then.

Do you guys think its better to go ahead and replace both 02 sensors if only 1 is bad?
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