Did lq9 swap out of my ss silverado now with 4l80 with btr 3 cam long tube headers
3400 stall car runs Excellent except for when I come up to stop sign it will run shortly and will try or does die most time it dies unless 2 foot. Has lowered thermostat and friend with hp tuners has helped me tune it so far but can't get this problem figured out. Changed throttle body,tac module and fuel pressure stays at 58. Any info will be great