I want to check the timing of my 93' 190e 2.6 and read a Haynes Book. It said that adjustment is made by the computer but can be done by playing with the EZL located near the ECU control. I was looking for it but I guess mine does not have it. The reason why I want to check the timing is that my car runs and feels like the timing is a little bit delayed. It eats gas and the feel of the car is a little bit heavy. How will I make it work properly? Is it the timing or the fuel/air mixture? How can I save gas...it hurts the pocket. Can anybody help me????? What is the best thing to do here?