2002 325i chrismas tree dash and crazy throttle - Bimmerfest - BMW Forums

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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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Old 11-11-2012, 03:36 PM
iBurnCats iBurnCats is offline
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Location: Norfolk
Join Date: Nov 2012
Posts: 1
Mein Auto: BMW 325i
Angry 2002 325i chrismas tree dash and crazy throttle

Before reading, I'm an Audi guy and I don't know very much about BMW's even though I own one. Noob status.
Where to start.. One day while driving my car I stopped at a restaurant. Shut car off, went inside for about 30 minutes and came back out. Started it and it was acting crazy. RPMs jumping all over without touching the gas. Almost every dash light was on. If you touch the throttle, it goes up to about 1500 rpm and drops to about 300 and sometimes stalls. The exhaust smells kinda rich.

What I've done:
-checked all applicable fuses in glove box
-checked all the engine fuses that are next to the computer
-unplugged battery and computer to let it reset, no improvements

heres what it is doing


I was thinking it could be the MAF but that doesn't explain why all the dash lights would be on and the crazy throttle. I have no idea where to go from here. I would really appreciate some ideas of what could be wrong. Cheers._a_
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