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A Negative RPM Idle?

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Old 06-30-2010, 07:29 PM
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A Negative RPM Idle?
Just leaving the store today my car started up and had a -1000 RPM on KOEO. When it was started the car idled at 0RPM then I drove it 30 ft, it idled at -500 RPM. No codes

I only have an air box mod and its a 2005 50,000 miles.

I searched for answers and one guy had a faulty crank sensor in a 2005. Could this be the same?

Also, as I think about it. Everytime I turn the car off the needles drop and shake around 0, like the battery is dying. It has always done this tho (It got a new battery this winter)

Any help?
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Old 06-30-2010, 07:40 PM
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your engine is spinning backwards. Refer to the aincent engine spinning in reverse when backing up thread
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Old 06-30-2010, 07:42 PM
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when the needles start flickering, they are recalibrating themselves. but they should go well below zero
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Old 06-30-2010, 07:48 PM
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That is weird.
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Old 06-30-2010, 07:52 PM
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stop, youre going back to the future
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Old 06-30-2010, 08:00 PM
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if your car backfires at the same time you are -15mph, then you will teleport
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Old 06-30-2010, 08:14 PM
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Originally Posted by Gestapo007
if your car backfires at the same time you are -15mph, then you will teleport
ffffffffffffffffuuuuuuuuuuuuuuuuuuuuuuuuuu i just spit gatorade all all myself, phone, ipod, and keyboard
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Old 06-30-2010, 08:17 PM
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Originally Posted by koch1ar
ffffffffffffffffuuuuuuuuuuuuuuuuuuuuuuuuuu i just spit gatorade all all myself, phone, ipod, and keyboard
this just made me! LOL I'm thankful I wasn't drinking anything.
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Old 06-30-2010, 08:27 PM
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haha
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Old 06-30-2010, 08:27 PM
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The needles only "re-calibrate" when the car has been turned off.

At least that's the only time I have noticed my needles jumping around.
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Old 06-30-2010, 08:34 PM
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Do you by chance have a custom gauge face installed?
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Old 07-01-2010, 04:11 PM
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Originally Posted by Nighthawk243
Do you by chance have a custom gauge face installed?
**** I do. Black cat
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Old 07-01-2010, 04:26 PM
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Originally Posted by G85 SS
The needles only "re-calibrate" when the car has been turned off.

At least that's the only time I have noticed my needles jumping around.
what he said^^

check the black cat gauges
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Old 07-01-2010, 04:30 PM
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Originally Posted by Gestapo007
your engine is spinning backwards. Refer to the aincent engine spinning in reverse when backing up thread
That thread was great
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Old 07-01-2010, 06:10 PM
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busted out laffin and scared my dog. lmao
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Old 07-01-2010, 07:00 PM
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Originally Posted by bubba_jay
busted out laffin and scared my dog. lmao
How's your one toothed cousin?
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Old 07-02-2010, 01:14 PM
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So what could be wrong with the gauges?
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