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post #1 of 4 (permalink) Old 09-25-04, 10:59 PM Thread Starter
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engine miss

At full throttle and most notibly in top gear i have a miss. Feels like a reasonably large drop in power (maybe 15-20rwkw). The exhaust note becomes irregular and she generally just doesn't feel as strong. happens mostly from 3000rpm and up. I have the impression it maybe spark and possible related to the warmer weather. Do i need bigger gaps on the plugs for warmer weather? or is there somewhere else i should look?

Any help to diagnose and resolve here would be great.

347 238rwkw untuned and with a couple more lil things to change :)
Other car: BA FAIRMONT
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post #2 of 4 (permalink) Old 09-25-04, 11:30 PM
345kw of V8 Windsor Power
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Location: Adelaide
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Re: engine miss

Doesn't sound like spark, unless you have them set too wide and they are being blown out. Maybe close the gaps up a bit and see what happens. Could also be fueling problems, mine did the same sort of thing, missing at full throttle because it was leaning out due to a faulty regualtor/fuel pump.
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post #3 of 4 (permalink) Old 09-26-04, 12:42 AM
Join Date: Aug 2004
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Re: engine miss

sounds like a lean out to me id cheak fuel pres reg,pump pressure,give the injectors a clean and change the filter...if it gets to lean youll melt something

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post #4 of 4 (permalink) Old 09-26-04, 04:25 AM
Two SC 61's = trouble
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Re: engine miss

Clean maf and replace fuel filter if it hasn't been done latley...
Plugs and leads first....

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