Hi all, I'm new here so please be gentle with me.
I am working on a friends 190 2.0l manual with KE Jetronic.
The symptoms are that the car will start and idle but at low speed.
The engine will not rev without spluttering and coughing, as soon as the engine warms up it seems fine.
I've checked the auxiliary air valve and found that it is closed all the time cold or hot. I can move the blade with a screw driver and I've cleaned it, I get very little resistance across the electric terminals on the valve and also if I apply 12v across it nothing moves surely it should open?
I'm suspecting the the valve is knackered, can anyone point me in the direction of a new or replacement one, also can anyone confirm my diagnosis?
Thanks in advance for any advice.
Cheers
Kev, South Wales.
I am working on a friends 190 2.0l manual with KE Jetronic.
The symptoms are that the car will start and idle but at low speed.
The engine will not rev without spluttering and coughing, as soon as the engine warms up it seems fine.
I've checked the auxiliary air valve and found that it is closed all the time cold or hot. I can move the blade with a screw driver and I've cleaned it, I get very little resistance across the electric terminals on the valve and also if I apply 12v across it nothing moves surely it should open?
I'm suspecting the the valve is knackered, can anyone point me in the direction of a new or replacement one, also can anyone confirm my diagnosis?
Thanks in advance for any advice.
Cheers
Kev, South Wales.