|
Thank you All for your input
When i open the oil cap with engine running idle drops slighly as it should. Isnt this a simple way to understand that vacuum circuit is ok?
Also connected a vacuum gauge between intake and WUR to check the enrichment function. Idle pulled a steady 300 mm hg
Will follow Tony's advise and search for air leakages also.
Daniel i have the same exact symptoms.
This Sunday will test the injectors ballance and spray pattern and replace FD relief valve.
Do you think that 0.6 CO% at 3000 rpm is within spec? Car parked. Only engine revving
WUR 089 uses vacuum to lean the mixture for part throttle. Since US engines had O2 sensor to keep theoretically 0 CO% idle and part throttle i think mine is ok.
But This is my first CIS engine so have to ask the experienced people.
|