I notice, like many of you do, that my car behaves very differently depending on how much gas is in the tank. Much better throttle response and feels generally more powerful when I have nearly a full tank, anemic when it's below half. How can I regulate this so it's just as powerful all the time?

thanks

 

You can buy a fuel pressure regulator and adjust it to whatever psi you want. But in any case I'm sure that the amount of fuel in the tank does not affect the fuel pressure.

 

any idea then why my CL behaves this way? i've seen other posts where people complain of the same thing, but no solutions