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Topic: rev counter flickers (Read 576 times) |
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stuarte
Junior Member
I'm a YaBB newbie!
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rev counter flickers
« on: Apr 16th, 2010, 4:48pm » |
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when i start scorpio, it doesnt register on rev counter for a couple of mins unless i rev it gently, and then it flickers about like mad, after 2 mins it shows 1000 revs on its own, when i drive and i kick down it fluctuates madly before it settles. any ideas.
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tonyboy
Full Member
black2.924Vcoss ( No More )
  
 
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Re: rev counter flickers
« Reply #1 on: Apr 16th, 2010, 5:27pm » |
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If you was having trouble with your alarm aswell it could well be the battery............
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I think i'm going, erm what do you call it..... Senial.... 
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stuarte
Junior Member
I'm a YaBB newbie!
Posts: 59
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Re: rev counter flickers
« Reply #2 on: Apr 16th, 2010, 5:58pm » |
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not sure, battery never got flat turns over car with ease,does the coil produce signals to the rev counter. its not the situation where speedo and rev counter fly right around on ignition, just seems to flicker up and down like its unsure where to rest when driving normally
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: rev counter flickers
« Reply #3 on: Apr 16th, 2010, 6:22pm » |
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If it's the 2.9 12V then the rev counter works from the alternator, if it's 2.0, 2.3 or cossie then it works from the EDIS module.
Also, check that the small lead on the battery negative is on nice & tight. This can also cause the rev counter to go loopy....may also cause alarm problems 
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stuarte
Junior Member
I'm a YaBB newbie!
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Re: rev counter flickers
« Reply #4 on: Apr 16th, 2010, 6:43pm » |
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i checked , nut was very tight, althought terminals seems as if the connectors havent been moved in months, anyway i tightened even more which was hardly any, started car, it showed 1000 rpm right away, but when reving it seems to be slow to respond and jerky
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Mottsy
Junior Member
Posts: 78
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Re: rev counter flickers
« Reply #5 on: Apr 17th, 2010, 7:33pm » |
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My 2.9 12v had this problem when I first got it. The garage replaced the diodes in the alternator and fixed it. (I think this is basically the bushes).
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