2016 Z06 A8 Bogging Problem!
Thread Starter
6th Gear
Joined: Aug 2024
Posts: 6
Likes: 0
2016 Z06 A8 Bogging Problem!
Hello All,
About 2 weeks ago my car started bogging down and then revving back up every time I accelerate from a stop (this will happen usually 5-10 times) once the car has warmed up. I can see the boost gauge jumping up and down. The car will barely accelerate no matter how far I press down the pedal then will take off randomly like nothing ever happened. Just to do it again at the next stop. I have noticed it will do some bogging on the highway with light throttle. It has not thrown a check engine light. The car currently has an aftermarket exhaust and cold air intake done. Has anyone else experienced this or know what the culprit is.
About 2 weeks ago my car started bogging down and then revving back up every time I accelerate from a stop (this will happen usually 5-10 times) once the car has warmed up. I can see the boost gauge jumping up and down. The car will barely accelerate no matter how far I press down the pedal then will take off randomly like nothing ever happened. Just to do it again at the next stop. I have noticed it will do some bogging on the highway with light throttle. It has not thrown a check engine light. The car currently has an aftermarket exhaust and cold air intake done. Has anyone else experienced this or know what the culprit is.
Last edited by KLR_Z06; Sep 7, 2024 at 01:08 PM.
Moderator, Tech Contributor
Joined: Sep 2013
Posts: 15,594
Likes: 4,055
From: Cape Coral, Florida
Hello All,
About 2 weeks ago my car started bogging down and then revving back up every time I accelerate from a stop (this will happen usually 5-10 times) once the car has warmed up. I can see the boost gauge jumping up and down as well as the rpms. The car will barely accelerate no matter how far I press down the pedal then will take off randomly like nothing ever happened. Just to do it again at the next stop. I have noticed it will do some bogging on the highway with light throttle. It has not thrown a check engine light. The car currently has an aftermarket exhaust and cold air intake done. Has anyone else experienced this or know what the culprit is.
About 2 weeks ago my car started bogging down and then revving back up every time I accelerate from a stop (this will happen usually 5-10 times) once the car has warmed up. I can see the boost gauge jumping up and down as well as the rpms. The car will barely accelerate no matter how far I press down the pedal then will take off randomly like nothing ever happened. Just to do it again at the next stop. I have noticed it will do some bogging on the highway with light throttle. It has not thrown a check engine light. The car currently has an aftermarket exhaust and cold air intake done. Has anyone else experienced this or know what the culprit is.
Race Director
Joined: Apr 2014
Posts: 10,428
Likes: 1,726
From: North Texas
I'll vote for something going on with the CAI/throttle body. IMHO, sounds like air not being measured properly on the intake side. Just making stuff up, it will be interesting to hear what the deal is.
Thread Starter
6th Gear
Joined: Aug 2024
Posts: 6
Likes: 0
Problem has been found !
Turns out that my intercooler reservoir was half full of air. Causing my manifold temperatures to be 190 at idle then 220 with any kind of acceleration. This caused my car to pull 4 degrees of timing.
