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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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#1 (permalink) Old 06-08-2008, 12:10 AM
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fault code

So I got the fault code 1233 today and i looked it up and it is throttle wide open throttle switch. I looked up how to replace it and such so Im good on that I think, but my question is, what problems does it create? poor gas mileage? is that all? I seem to be getting very decent mileage anyway? thanks yalls.

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#2 (permalink) Old 06-08-2008, 12:20 AM
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in layman's terms...

your Throttle Position Sensor/Throttle Position Switch is faulty( or adjusted wrongly).

the pelican tech pages suggest a good step-by-step procedure to adjust your TPS, and if that doesn't work, consider replacing your TPS

Probs it creates= poor driveability(i.e. stalling, bucking... poor gas mileage... etc...)
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