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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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Old 05-11-2005, 07:49 PM   #1 (permalink)
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Ok, so I have a 95 325i with 158k and a 5-speed. The car is in great shape and all but runs perfect. My problem is that during accerlation, I will get what seems like lag in first gear. This doesnt happen all the time, but often enough that i think there is something a little off. I also get spurts of power when shifting through the rest of the gears. Ill get on it and the tach will rise, but the car doesnt always accelerate smoothly. It seems like an air, fuel, or spark issue, but i run premium, changed my fuel filter, have a new k&n air filter, and just put bosch platinum 2's in it. I did hear, however, that it may be a bad idea to put these plugs in a high mileage car for fear of foul out. Any truth? What do you guys think? Maybe a sensor? Bad plugs? Something more serious? Thanks for your help
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Old 05-11-2005, 09:32 PM   #2 (permalink)
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My car does the same thing, people have told me ICV's and O2 sensors or mass airflow sensors, cause mine runs fine aswell!
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Old 05-11-2005, 09:38 PM   #3 (permalink)
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my 95 325is does that exact same thing too! i was just gonna post something like this but didnt know how to explain it... thanks man!
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Old 05-11-2005, 10:29 PM   #4 (permalink)
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My '94 325is 5 speed does the same thing too! I always run premium fuel and only have 106K. It seems like at about 4000rpm the power really kicks in. What years did they have the VANOS? What rpm does VANOS kick in?
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Old 05-11-2005, 10:33 PM   #5 (permalink)
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same problem here. i think tomorrow i'm going to check the resistance on my coils and make sure i dont have any weak ones. i know i might need to change my spark plug connector because i might be losing spark if one of them is messed up. so if i were you i'd check the coils, plug connectors, and possibly your o2 sensors.
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Old 05-12-2005, 12:33 AM   #6 (permalink)
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It can't hurt to clean out the injectors either. Just put a good gas additive in for a tank then again after a normal tank. I put in Bosch platinums and have no problems at all.
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Old 05-12-2005, 07:59 AM   #7 (permalink)
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Must admit mine does the same just a quick lag before the power kicks in.
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