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Anything above about 20% is going to be questionable.
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moddbox supercharger kit troubles
- Thread starter maindk
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- Dec 18, 2024
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No pinging
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Short term fuel trim bank 1 -3.1%
Long term fuel trim bank 1 24.2%
Short term fuel trim bank 2 .8%
Long term fuel trim bank 2 25%
Air flow rate from MAS .78lbs/min
Long term fuel trim bank 1 24.2%
Short term fuel trim bank 2 .8%
Long term fuel trim bank 2 25%
Air flow rate from MAS .78lbs/min
- Joined
- Dec 18, 2024
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- 12
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- pittsburgh
- State - Country
- PA - USA
- Vehicle Year
- 2005
- Drive
- 4WD
- Engine
- 4.0 V6
- Transmission
- Automatic
- Tire Size
- 32
bobbywalter
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- woodhaven mi
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- 1988
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- sawzall?
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- 33-44
- My credo
- it is easier to fix and understand than "her"
check the pump install, make sure its not bypassing. and filter. and pressure and volume.
- Joined
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- PA - USA
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- 2005
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- 4.0 V6
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- Automatic
- Tire Size
- 32
Gotta run to pick up a fuel pressure tester. Send results when I get it
- Joined
- Dec 18, 2024
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- 12
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- pittsburgh
- State - Country
- PA - USA
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- 2005
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- 4.0 V6
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- Automatic
- Tire Size
- 32
Fuel pressure gauge says 45psi one turned and 58psi while running. The volume is supposed to be the moddbox one at 255 lph
bobbywalter
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- Joined
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- 25,379
- City
- woodhaven mi
- Vehicle Year
- 1988
- Engine
- Transmission
- Automatic
- Total Lift
- sawzall?
- Tire Size
- 33-44
- My credo
- it is easier to fix and understand than "her"
the plugs need read for sure.
58 psi is solid...if it stays that way under load then for sure i would suspect some fouling possibly. did you get any coolant in the exhaust?
58 psi is solid...if it stays that way under load then for sure i would suspect some fouling possibly. did you get any coolant in the exhaust?
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- 4.0 V6
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- Automatic
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- 32
No coolant in the exhaust. Far as I can tell. When you say read the plugs. Pull them out and see if it's either black or white?
bobbywalter
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- Joined
- Aug 9, 2007
- Messages
- 25,379
- City
- woodhaven mi
- Vehicle Year
- 1988
- Engine
- Transmission
- Automatic
- Total Lift
- sawzall?
- Tire Size
- 33-44
- My credo
- it is easier to fix and understand than "her"
yes. when you are pushing air you want to regularly inspect the plugs.
if there was some blockage in the exhaust or something loose or open in the egr ect you can get some issues.. or fuel restriction. sticky or plugged injectors ect.
1. The mod box intake is installed with RTF, so, too much/ too little could cause issues/
2. The mod box fuel pump is low quality. Looks like you already checked good pressure under load.
2. The mod box fuel pump is low quality. Looks like you already checked good pressure under load.
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