L76 issue
L76 issue So I have this issue with my G8 having a hesitation/skip (not so much a hesitation I guess). I can replicate the "skip" like clockwork. Basically it happens when:
Coasting at any speed above 20-25mph and I open the throttle 30% or more (enough to make the tranny downshift) and just as it down shifts and begins to accelerate theres a skip in the motor almost like a misfire but it's not doing it at any other time during driving under any or all conditions while driving. I almost can't tell if its engine related or maybe even a solenoid fault in the tranny. It's very quick too when it happens, not drawn out like a slip in the tranny. I had a friend of mine who has dealt with the TB issues on the GEN IV's take a ride with me and even he's baffled. No TB codes or anything, car has intake, LTH/cat delete for mods with no tune and I've run it for a few weeks now and the usual lean codes come up but the skip issue only started a few days ago and no codes have been thrown relating to it.... yet. Anyone ever hear of something like this?
Thanks
Coasting at any speed above 20-25mph and I open the throttle 30% or more (enough to make the tranny downshift) and just as it down shifts and begins to accelerate theres a skip in the motor almost like a misfire but it's not doing it at any other time during driving under any or all conditions while driving. I almost can't tell if its engine related or maybe even a solenoid fault in the tranny. It's very quick too when it happens, not drawn out like a slip in the tranny. I had a friend of mine who has dealt with the TB issues on the GEN IV's take a ride with me and even he's baffled. No TB codes or anything, car has intake, LTH/cat delete for mods with no tune and I've run it for a few weeks now and the usual lean codes come up but the skip issue only started a few days ago and no codes have been thrown relating to it.... yet. Anyone ever hear of something like this?
Thanks
Launching!
Joined: Mar 2007
Posts: 227
Likes: 29
From: DC Metro area
So I have this issue with my G8 having a hesitation/skip (not so much a hesitation I guess). I can replicate the "skip" like clockwork. Basically it happens when:
Coasting at any speed above 20-25mph and I open the throttle 30% or more (enough to make the tranny downshift) and just as it down shifts and begins to accelerate theres a skip in the motor almost like a misfire but it's not doing it at any other time during driving under any or all conditions while driving. I almost can't tell if its engine related or maybe even a solenoid fault in the tranny. It's very quick too when it happens, not drawn out like a slip in the tranny. I had a friend of mine who has dealt with the TB issues on the GEN IV's take a ride with me and even he's baffled. No TB codes or anything, car has intake, LTH/cat delete for mods with no tune and I've run it for a few weeks now and the usual lean codes come up but the skip issue only started a few days ago and no codes have been thrown relating to it.... yet. Anyone ever hear of something like this?
Thanks
Coasting at any speed above 20-25mph and I open the throttle 30% or more (enough to make the tranny downshift) and just as it down shifts and begins to accelerate theres a skip in the motor almost like a misfire but it's not doing it at any other time during driving under any or all conditions while driving. I almost can't tell if its engine related or maybe even a solenoid fault in the tranny. It's very quick too when it happens, not drawn out like a slip in the tranny. I had a friend of mine who has dealt with the TB issues on the GEN IV's take a ride with me and even he's baffled. No TB codes or anything, car has intake, LTH/cat delete for mods with no tune and I've run it for a few weeks now and the usual lean codes come up but the skip issue only started a few days ago and no codes have been thrown relating to it.... yet. Anyone ever hear of something like this?
Thanks
Sounds like Torque Management. Get it tuned. My G8 did the same crap when I just had intake, headers and exhaust. Learned how to tune and...
Youre still gonna have SOME hesitation (if you have torque management enabled) on downshifts. I wouldnt recommend turning it off (makes for really rough downshifts an possble trans damage). But you can turn it down a litttle bit.
Oh yeah, get that thing tuned before you hurt it. She is SUPER LEAN right now with just those bolt ons.
Wait... on second thought... after re-reading your post...
GET IT TUNED! That may be causing your hesistation. Stay out of heavy throttle until you do...
thanks for the reply. I've read every thread on G8's having hesitation issues/tq management issues and I now regret using "hesitation" as a description. The issue I have is not a hesitation, its like a skip in the engine, picture all 8 spark plugs simultaneously misfiring in a snap of a finger and that's the issue I have. From what I gather the untuned hesitation these exhibit will happen under any and all WOT/shift forced conditions. The car will be tuned but not right away. I do not believe this is TQ Management related.
Launching!
Joined: Mar 2007
Posts: 227
Likes: 29
From: DC Metro area
Mine did the same thing but with a mean pop. Get it tuned. When i put my wideband on, I was at 13.4:1 WOT.....
