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rpm is reading about 500 lower than normal!! whats the cause?

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Old 05-23-2010, 09:45 AM
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Default rpm is reading about 500 lower than normal!! whats the cause?

ok everything was just fine yesterday, i did a 4hr road trip to my inlaws and had no rpm problems, this morning when i started the car it only jumped to about 1100-1200rpm when it usaually jumps to 1500-1700rpm on cold morning starts and drops down to 900rpm when fully warms up. And now my vtack kicks in at 5500rpm when it's suppose to kick in at 5000rpm what could be the cause of this rpm being lower than normal problem??

Last edited by 092eg6; 05-23-2010 at 10:04 AM.
Old 05-23-2010, 09:23 PM
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Default Re: rpm is reading about 500 lower than normal!! whats the cause?

vtec fluid is low. lol joke
Old 05-24-2010, 09:33 PM
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Default Re: rpm is reading about 500 lower than normal!! whats the cause?

Originally Posted by roycivic92
vtec fluid is low. lol joke
nah not enough ground wires so the rpm cant catch up with the vtec spool
Old 05-26-2010, 07:22 AM
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Default Re: rpm is reading about 500 lower than normal!! whats the cause?

can it be the distributor??
Old 06-06-2010, 08:28 PM
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Default Re: rpm is reading about 500 lower than normal!! whats the cause?

ttt 4 answers
Old 06-06-2010, 08:47 PM
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Default Re: rpm is reading about 500 lower than normal!! whats the cause?

try another cluster /tack or datalog to see whats the rpm should be at
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