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my car misses when on boost

Old 03-18-2004, 10:38 PM
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Join Date: Jul 2003
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Default my car misses when on boost

at around 5k rpm my car starts to missfire
checked the plugs and they seem ok
all tan colored

could it be bad gas or time to get new plug wires

i think its both as i havent changed the plus wires since i got the car 2 years ago
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Old 03-19-2004, 11:59 AM
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Default Re:my car misses when on boost

...maybe give us some details on your setup... your fuel management.. so on so forth.
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Old 03-20-2004, 02:14 AM
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Default Re:my car misses when on boost

Originally Posted by TurboEF9
...maybe give us some details on your setup... your fuel management.. so on so forth.
ihi
simple fmu and inline fuel pump
runnin 5 psi

had no prior problems since november

this week for no apparent reason
the car misses while one full boost in 3dr
rearly does it in first and second gear

could it be ignition problems?
plugs look aiiight i use ngk one step colder plugs

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Old 03-20-2004, 09:57 AM
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Default Re:my car misses when on boost

are the plugs gapped properly? try dropping the gap size by 0.005"
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