just started happening Sunday night and it's only sometimes that it start idling like ass but once i get it above 1500rpm it's fine...it's got me a lil confused....already put a new set of plugs in and have swapped out the plues wires....gonna scan it later and see what's going on there, but the AFR is fine when it starts missing...anyone have any ideas...map sensor maybe?
2006 silverado SS....Clifford Jr...turbo coming soon
1970 Chevelle ly6 swap....d1 coming soon
A coil taking a crap? A bad rocker arm? Burned or bent a valve?
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
Vacuum leak, TPS, dirty throttle plates dirty IAC port.
2006 Superior Blue Trailblazer SS AWD, Stock as a rock
Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).
Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning
yeah i have come pretty close to thinking its a coil pack going bad
2006 silverado SS....Clifford Jr...turbo coming soon
1970 Chevelle ly6 swap....d1 coming soon
I was thinking its a big cam...lol ,mine idles like that that too
Vortec Performance Tuned
LQ9 built 4L60 LTs and a billion miles on the speedo!
I have the same problem, it drives perfectly fine, just at stop lights, and idling it seems to have a miss in it, and shake a little. I havent figured out what it is, but im going to try my new injectors, and a TPS
It may just be a dirty injecter not spraying, just spitting fuel.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
i am getting a set of coil packs from Moze tonight and going to run a lil seaform through my gas tank to clean the injectors...see if that helps it out
2006 silverado SS....Clifford Jr...turbo coming soon
1970 Chevelle ly6 swap....d1 coming soon
im with red do a compression test first before putting parts in it
1998 chevy 1500 with 6.0/4l80e comp cam, tune, exhaust,
i don't think a bent valve or rocker because it only happens sometimes just out of no where...the plugs i pulled looked a lil rich but not bad...but that's my tune i want it rich at WOT..it's at like 11.8...i think something electronic cause it just comes and goes....i bent valve/pushrod or rocker would be a consistant miss
2006 silverado SS....Clifford Jr...turbo coming soon
1970 Chevelle ly6 swap....d1 coming soon
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