Having the studer isssue whike adle plus while driving 1.5 to 2.5 rpm... injector cleaning helped but not fully. checked the plugs and i will change the injectors then fuel pump...
check the air hoses for vacuum leak such as visible cracks or holes and make sure hoses are nice and tight. I wonder also if your idle control valve has bit the dust. check you throttle body wach this video ua-cam.com/video/MLI6yR7pNMc/v-deo.html
Having the studer isssue whike adle plus while driving 1.5 to 2.5 rpm... injector cleaning helped but not fully. checked the plugs and i will change the injectors then fuel pump...
check the air hoses for vacuum leak such as visible cracks or holes and make sure hoses are nice and tight. I wonder also if your idle control valve has bit the dust. check you throttle body
wach this video ua-cam.com/video/MLI6yR7pNMc/v-deo.html