Flat spots

McCaly · 05-31-07, 06:56 AM

When i go into the second turbo every so often i will get flat spots but they seem to be completely random. Sometimes i wont get any but then other times i may gey get 3 or 4. The car will be pulling great then for a few hundred RPM it will hit a flat spot then it will start pulling great again.

Its the fact that it doesn't happen all the time thats confusing me. I have tried changing the spark plugs but with no luck. Would it be the HT leads?

any help would be much appreciated

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Mahjik · 05-31-07, 03:31 PM

Is this an FD? If so, what's your boost pattern? What modifications are on the car?

McCaly · 05-31-07, 07:42 PM

yeah an fd, only modifications are exhaust and filters

Mahjik · 06-03-07, 08:42 AM

Quote:

Originally Posted by McCaly

yeah an fd, only modifications are exhaust and filters

Start with the boost test: http://fd3s.net/boost_test.html

Determine if the hesitation only happens in a certain spot of the RPM band or if its random.