Exhaust valve always open mod - CEL
#1
Exhaust valve always open mod - CEL
Hi, I wanted to see what the G550 would sound like with the valves always open and found that under the valve motor is a spring that comes right off - this spring connects the valve motor to the exhaust valve/flapper. I simply removed the spring, safety wired the valve open and put everything back. Didn't even disconnect the valve motor. Has anyone else tried this? I did one side and started the car - it was fine. Did the other side and now the CEL has popped up and I believe the car is in limp mode. No info on the dash aside from the CEL. Pulling the codes tomorrow.
#2
Hi, I wanted to see what the G550 would sound like with the valves always open and found that under the valve motor is a spring that comes right off - this spring connects the valve motor to the exhaust valve/flapper. I simply removed the spring, safety wired the valve open and put everything back. Didn't even disconnect the valve motor. Has anyone else tried this? I did one side and started the car - it was fine. Did the other side and now the CEL has popped up and I believe the car is in limp mode. No info on the dash aside from the CEL. Pulling the codes tomorrow.
Last edited by haa; 04-25-2023 at 09:50 AM.
#4
I am pretty positive the CEL is due to the flapper motor is not having anything to rotate - it can't find the end stops. Since I don't ever plan on closing the flaps, I'm going to make these caps with end stops inside so I can leave the flaps safety wired open.
#5