1994 Mercedes Benz 200e Repair Question
Throttle body problem
My question is, is there a solution for my problem? Was the mechanic correct to open the black cover of the throttle body to adjust the idle? Can it be tuned back? Please help?
What is the idling speed after warming up?
The idling speed after warming up i.e. after the temperature reach 80c is 800. However,my problem is not after the engine warms up it has no problem during that time. the only problem I have is in the morning and day time if I stopped the car for 30min or 1hr. during that time it does not hold the idle (the car starts perfectly and the rpm goes to 1K and then immediately drops down and the engine will shutdown, to avoid this I need to step on the gas pedal a little bit for 2min and so).
I hope you understand my problem and thank you very much for your fast response.
1 question asked
Our database does not have any information for your vehicle so I hope what I have for you is applicable.
I don't know what the mechanic adjusted but if it is for air fuel mixture adjustment, it is not as simple as tweaking around. You would need a 4 gas analyser to do that to be accurate.
I need to know the idling speed as it could be related to your problem and since you are having correct idling speed, the problem lies with the cold (fast) idle system which is actually computer contyrolled and you cannot make any adjustment to it. The component likely to cause this problem would be with the by-pass air valve. It could be clogged or not functioning correctly.
Have you checked for trouble codes?
I think he did air fuel mixture adjustment. I attached the picture that he opened and done the adjustment. By yhe way what is a 4 gas analyser? Thank you so much gor your cooperation.
1 question asked
4 gas analyser is a tool that is plugged into the end pipe of the exhaust to test the gas content and perform adjustment accordingly to get it correct.