Contour Enthusiasts Group Archives Forums General Troubleshooting CEL On, then Goes away

my fathers cel in his 95 Se would cycle on the highway. He got the injectors cleaned and that helped some. The other weekend he looked at the plugs and found the front bank was just a bit dark so he replaced the O2 sense, didn't cure the cel but he said it ran better and might just be some time befoer the computer learns the new sensor. I asked once before and someone said it was a hose that got nicked and at highway speed it was enough to draw air in IIRC, or something like that. So maybe it is something like that