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HELP!... hard hesitation / studdering at 5000rpm... any ideas?

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Old 02-23-2004, 07:00 PM
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Default HELP!... hard hesitation / studdering at 5000rpm... any ideas?

it occurs at moderate throttle. a hard, jerky hesitation. it feels like the spark is getting blown out. i thought that is what it was so i gapped my plugs at .030. but it is still happening. any other ideas? btw, no smoke and compression is 190 across the board. lemme know, thanks.
Old 02-23-2004, 07:02 PM
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Default Re: HELP!... hard hesitation / studdering at 5000rpm... any ideas? (cornhusker)

Whats your fuel setup?
Old 02-23-2004, 07:15 PM
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Default Re: HELP!... hard hesitation / studdering at 5000rpm... any ideas? (Deluzional)

walboro, fmu, 290cc lude injectors, and n/a uberdata (until i get dsm450s).

btw, this didnt happen until i switched from a stock p72 to a uberchipped p28.
Old 02-23-2004, 08:59 PM
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i have the same exact problem
Old 02-23-2004, 11:30 PM
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Default Re: (bluesi00)

Your not running the FMU with the UBERDATA ecu are you?

If so, Remove the FMU~!!@!@!@~!~!~!~!~!~!
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