Hi all.
I have an annoying problem with the QP. In cold weather,below 0 Celsius,the engine starts with a very high idle. Usually about 1800-1900 rpm. This is of course wrong and very annoying. It will keep this idle for a minute or two while the engine warms up,then it will start to rapidly gallop between 1000 and 1500 rpm. It behaves like this till the engine temp is aprox. 65-70 when it will start to behave more normal before settling at a normal idle about 1000 rpm. When at operating temperature the engine starts absolutely fine and idles perfect.
So,what can be causing this ? I have changed both air temp sensors,both water temp sensors and both lambdas. I have checked the function of both air auxiliary valves. They move freely and looks to be ok. None of these new parts solved the problem. If the engine is sucking in false air,wouldn't that also create some problems when engine is hot ? Like rough,uneven idle ?
Any insight and ideas would be appreciated.
Thanks,
Arvid
I have an annoying problem with the QP. In cold weather,below 0 Celsius,the engine starts with a very high idle. Usually about 1800-1900 rpm. This is of course wrong and very annoying. It will keep this idle for a minute or two while the engine warms up,then it will start to rapidly gallop between 1000 and 1500 rpm. It behaves like this till the engine temp is aprox. 65-70 when it will start to behave more normal before settling at a normal idle about 1000 rpm. When at operating temperature the engine starts absolutely fine and idles perfect.
So,what can be causing this ? I have changed both air temp sensors,both water temp sensors and both lambdas. I have checked the function of both air auxiliary valves. They move freely and looks to be ok. None of these new parts solved the problem. If the engine is sucking in false air,wouldn't that also create some problems when engine is hot ? Like rough,uneven idle ?
Any insight and ideas would be appreciated.
Thanks,
Arvid