DFi gen7 surge problem
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iTrader: (1)
Joined: May 2004
Posts: 275
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From: new york
Car: 1985 pontiac trans am
Engine: Procharged 5.7l
Transmission: t-56
Axle/Gears: stock 9 bolt 3.71
DFi gen7 surge problem
Im having a problem with my gen7 efi, i bumped up the timming to 15 deg, now i have a bad surge, anyone come across this?please help
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Joined: Dec 2001
Posts: 161
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From: Michigan
Car: GTP
Engine: L67
well... does it go away if you put the timing back where it was? What happens if you add a little fuel in the VE or Target A:F table in the same area that you changed the timing, does it get better or worse? Surging could be due to being lean. Or you could have 2 adjacent areas in one of your tables containing significantly different numbers. That could cause your engine to oscillate between the two differing values. Try some things and see what happens.
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