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By using a tool box open the location and remove it to replace it with a new one
First take a look if the ABS light is on, if yes, check your OVP relay.
How high is your idle? idle should be 800rpm good oil pressure is obtained at this idle
Could be a number of reasons. Visit www.mercedes190.co.uk
Idle is computer controlled and can NOT be adjusted.
I'm not sure I understand your question but check your accelerator cable for slippage or broken connection at the throttle. Next, check your fuel filter for blockage and change if needed. If it is "missing" it could be an electrical problem. Good luck!
not sure what model or series you refering too, but many times in Mercedes of that era, high idle is due to a dead Overload protection relay. It's is one or two ten amp fuses that you can get from any auto shop. Usually this solves the problem. If not, usually for that year there is a screw by the idle control valve that you can use to adjust the idle.
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If the idle is erratic on a 1993 Honda Civic the IACV will need to be clean or replaced. The IACV controls the idle on the car and when it fails the car will not be able to maintain an idle.
I HAVE THE SAME VEHICLE AND HAD THE SAME PROBLEM... THERE IS A SERVICE BULLETIN FOR THE IDLE AIR CONTROL VALVE. THAT SOLVED MY INTERMITANT HIGH IDLE.
Remove the air filter assembly, on the right side of the engine adjacent and below the the accelerator linkages, the throttle body is located. At the rear of the throttle body is a set screw which establishes how much air is allowed to flow at zero throttle. Unfortunately if the throttle body is leaky replacement is necessary. Check the timing -- and the fuel mixture as well. Either one can result in high idle RPMs.
The idle speed is computer controlled on a LT1 engine. If it is a little high, try checking for vacuum leaks.