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Fuel system help pt 2

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Old 02-07-2008 | 11:01 PM
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Default Fuel system help pt 2

Now that I have the electrical diagram I can ask the right questions.

My tuner called me an hour ago saying my car was givin him nightmares on the dyno.

The car just got cam/injectors/kb boost pump/ and bottle system.
Trying to nail down a N/A tune first. It would be fine holdin 60lbs fuel pressure at the rail then drop down to 20lbs. he disconnected the KB Boost pump and it was still creating a hit and miss problem. It happened at 4k rpms a few times then went as low as 2k rpms.

The car has 15k miles 2003 z06. Never had a problem. I feel it lies in voltage supply. Anyone with experience with this issue please chime in.
Old 02-08-2008 | 07:01 AM
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Are you running the factory pump or an upgraded one?
Old 02-08-2008 | 06:01 PM
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For N/A there shouldn't be a problem-you might want to consider the Racetronix fuel pump harness.




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