Diag codes in tach? - BMW Forum - BimmerWerkz.com
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 08-23-2004, 07:33 PM
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Quick question, with this 86 325 I just acquired, the tach will periodically jump to 2K and sit there for a while, eventually to return to normal operation and repeat the cycle. I assume it's communicating some kind of fault code? I know fault codes are normally communicated though the check engine light, but does the tach also display some soft of diag codes too? And yes, the check engine light is on, as it was when I bought it (will reset it and read codes off it soon).

TIA!
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#2 (permalink) Old 08-23-2004, 08:12 PM
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lol its not communicating with you...you may want to check to see if your ICV(idle control valve)...is sticking mine did this..take it out and holse it out with some wd40

Kyle Sutherland

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1987 BMW 325es: Face & Butt Lifted/M50tu Swapped*Sold*
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#3 (permalink) Old 08-23-2004, 08:36 PM
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So, it's the ICV, even if this is happening while I'm driving on the freeway the engine is well above 2000rpm? Because that's what it's doing. I can go from idle and accelerate and shift through all the gears, and during that whole time, it's sat at exactly 2000rpm. Does that still sound like the ICV?

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#4 (permalink) Old 08-24-2004, 12:49 AM
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ohhhhhhhhhhhhhhhhhhhhhhhhhhh my bad ghead i thought you were saying at IDLE...haha durrr...no its very common for e30's to have gauge cluster issues..they like to give you a hard time...im not sure on the procedure for repairing it but mine did that to id just know on it and it would kick back on...you may just want to check all the connections...but im guessing its internal..

Kyle Sutherland

1995 BMW 540i/6:
The Calypso Beast Vid 0-70ish
1987 BMW 325es: Face & Butt Lifted/M50tu Swapped*Sold*
1985 VW Scirocco: Too many mods, money pit*Sold*
E34 Plate Filler Wanted!
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#5 (permalink) Old 08-24-2004, 12:53 AM
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Cool, I'll check it out. Thanks for your help!
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#6 (permalink) Old 08-24-2004, 12:58 AM
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no prob bob...stick around the forums :P we all become lil brothers and sisters fighting over why GI Joe is better than Barbi or vise versa....and we get some help in once in a while haa

Kyle Sutherland

1995 BMW 540i/6:
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1987 BMW 325es: Face & Butt Lifted/M50tu Swapped*Sold*
1985 VW Scirocco: Too many mods, money pit*Sold*
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#7 (permalink) Old 08-24-2004, 04:18 AM
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lol off topic...rofl


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#8 (permalink) Old 08-24-2004, 04:26 AM
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Quote:
Originally posted by Slvr E30iS@Aug 24 2004, 03:58 AM
lol off topic...rofl
point being? they are new...im trying to get them to stick around... :P

Kyle Sutherland

1995 BMW 540i/6:
The Calypso Beast Vid 0-70ish
1987 BMW 325es: Face & Butt Lifted/M50tu Swapped*Sold*
1985 VW Scirocco: Too many mods, money pit*Sold*
E34 Plate Filler Wanted!
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#9 (permalink) Old 08-24-2004, 04:29 AM
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hahah flaming a little bit tonight huh?

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#10 (permalink) Old 08-24-2004, 04:39 AM
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Quote:
Originally posted by e30devo@Aug 24 2004, 04:09 AM
hahah flaming a little bit tonight huh?
dont even get my started on you lol :P

Kyle Sutherland

1995 BMW 540i/6:
The Calypso Beast Vid 0-70ish
1987 BMW 325es: Face & Butt Lifted/M50tu Swapped*Sold*
1985 VW Scirocco: Too many mods, money pit*Sold*
E34 Plate Filler Wanted!
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