idles fine but rpm dead orange one this.n idle?

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Old May 12, 2008 | 08:55 AM
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Default idles fine but rpm gauge dead at idle

my rpm gauge is playing up on my obd0 B20 vtec crx.

it idles fine. but at idle (under 1000rpm) the gauge sits right at the bottom (showing at most 200 rpm) then drops dead and will not respond until the throttle is pushed and the revs increase.

it shows the rpm's fine whilst driving and when revved at standstill, but as soon as its stopped the gauge dies :?

any ideas?
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Old May 12, 2008 | 09:56 AM
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Default Re: idles fine but rpm gauge dead at idle (redsolturbo)

Check to make sure your dizzy is working correctly.


Modified by mar778c at 11:02 AM 5/12/2008
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Old May 12, 2008 | 10:38 AM
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Default Re: idles fine but rpm gauge dead at idle (mar778c)

it was brand new less than 600 miles ago.

think its the rpm pickup in there?
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Old May 12, 2008 | 12:29 PM
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Default Re: idles fine but rpm gauge dead at idle (redsolturbo)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redsolturbo &raquo;</TD></TR><TR><TD CLASS="quote">it was brand new less than 600 miles ago.

think its the rpm pickup in there?</TD></TR></TABLE>

Unfortunately, yes. I think the pick-up may be going bad.
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Old Jun 27, 2008 | 11:39 AM
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Default Re: idles fine but rpm gauge dead at idle (mar778c)

update for this.

turns out i had dry solder joints all over the rpm gauge board. re-soldered them all and it works fine again.

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