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3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

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Old 08-07-2004, 08:59 PM   #1 (permalink)
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What are some typical causes of my car running lean. I'm not to fimiliar with this. Could it be in relation to the boggy feeling at low RPM's?
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Old 08-07-2004, 10:19 PM   #2 (permalink)
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what do u mean by lean
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Old 08-07-2004, 11:15 PM   #3 (permalink)
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rich to much fuel
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Old 08-08-2004, 01:04 AM   #4 (permalink)
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clogged following.

Fuel filter
injectors
fuel lines
lambda sensor (o2)


I would check them in that order.
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Old 08-08-2004, 01:33 AM   #5 (permalink)
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thanks

already changed the fuel filter and o2 sensor, i checked the lines for pressure and seem good so i'm assuming nothing is clogged, and the injectors i'm assuming are fine, the were tested when i did the motor last year, and have ran injector cleaner through them a couple times since then but make one of them went
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Old 08-08-2004, 02:21 PM   #6 (permalink)
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How can you tell if the car is running lean or not?
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Old 08-08-2004, 04:09 PM   #7 (permalink)
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you can smell it, a rich fuel smell from the exhaust
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Old 08-08-2004, 05:10 PM   #8 (permalink)
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man...agh its running RICH...LEAN is too much AIR...RICH is too much FUEL
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Old 08-08-2004, 08:44 PM   #9 (permalink)
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Well I have the same problem... does your car wastes more gasoline that ususal? Mine is, I can smell it out of the exhaust. Tell me if you fix it because I cant find the problem.
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Old 08-08-2004, 10:16 PM   #10 (permalink)
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lok once again if ur car is wasting gas easier...than normal. then that means too much fuel is going to the motor...
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Old 08-08-2004, 10:40 PM   #11 (permalink)
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Quote:
Originally posted by Slvr E30iS@Aug 8 2004, 10:56 PM
lok once again if ur car is wasting gas easier...than normal. then that means too much fuel is going to the motor...
we know what the problem is, we told you what the problem was, were asking for solutions or probable causes
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Old 08-08-2004, 11:24 PM   #12 (permalink)
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well it seemed to me that u guys had it backwards...but ok np. a solution is to check ur air filter and see if u need a new one. it also depends on the climate. do u have a carburator on ur car or a fuel injection?
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Old 08-08-2004, 11:30 PM   #13 (permalink)
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i've done all the check up things, filter, injector cleaner, fuel filter, plugs and so on.
i'm looking for an internal problem.

Of course it's fuel injected i'm pretty sure all E30's are as well as all other BMW's
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Old 08-09-2004, 01:41 AM   #14 (permalink)
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actually I thought the 325 (Without I designation) was a carbourated model. The i was (to my understanding.) to stand for injected, like fuel injected. So I mean... I guess that was just my immedeate deduction. Anyhow, I'm not often right. :P
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Old 08-09-2004, 02:58 AM   #15 (permalink)
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lol well that is alot of help, but then it isnt...if its carburated then it culd be an adjustment depending on the climate...
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