car back fires
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Junior Member
Joined: Jul 2003
Posts: 58
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From: Cocoa,Fl.
Car: 92 Camaro z28
Engine: 427 sb
Transmission: th400
Axle/Gears: 9"/4.30
car back fires
under part throttle acceleration my car back fires out the exhaust. the back fire sounds like if my ign. wires are crossed. i have an auto x-ray scan tool. under pt my throttle angles are between 12-41%, rpm 2600-3600, block learn 118-130, block learn cell stays at 4, spark adv. 48-58. any suggestion. thanks. ron
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