I have a 98 318i 4 cyl 5 spd. The check engine light comes on and indicates bank 1 slow response. Changed cat conv. And the 2 oxygen sensors. Still shows the same. Nothing seems to be the same when the light comes on (rpms, speed, hot/cold). Gets about 30 mpg and that has not changed. I am thinking something in the emission or fuel management system is intermittently changing the mixture and picked up by the front o2 sensor. Any suggestions?
Monday, August 28th, 2006 AT 1:04 PM