Lean stumble during accel
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TECH Junkie
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Joined: Mar 2002
Posts: 3,703
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From: East Brady, Pa
Lean stumble during accel Here's a quick rundown of my setup. 98 Camaro with 408 LS6, 4l80e trans, 3400 converter, 91mm turbo and holley dominator setup. Everything is installed and fired up with a base tune. Everything is still learning but idle and cruise appears to be pretty stable. The problem is during acceleration I get a lean spike and the car stumbles almost to the point of stalling some times. It doesn't matter if it's out on the road or in the driveway going up onto the trailer. Any time a load is applied it's acting up. Is this something in the tune or another issue I need to look into. I'm by no means a tuning expert but it's really holding up the car from being ready to drive/race.
Watching the fuel cells it isn't leaving the idle/cruising cells that have adjusted themselves but it a/f goes up to 17-19 for a split second until the car picks back up.
Watching the fuel cells it isn't leaving the idle/cruising cells that have adjusted themselves but it a/f goes up to 17-19 for a split second until the car picks back up.
