'92 325i sputtering, rough idle need help...

[kelminr]

It started out as a rough idle, but I noticed that as the car got to normal operating temp, it would start to sputter and hesitate when accelerating. Now it does it right when you start it until it gets warm, but then soon after it reaches normal operating temperature, it starts again with the rough idle, and hesitation.

Also the check engine light would come on but go out as I was driving, but today it stayed on. I checked what the fault code readout was, and I am pretty sure that the code it was giving was "oxygen sensor control out of range" (1222) does this mean I need to replace the sensor or is it more than that?

Has anyone had similar problems? Did a new O2 sensor fix the problem? Any help would be greatly appreciated.

[Skycity_BMW]

Yes . . .

[kelminr]

Sky City, yes what?

Yes that will fix the problem?
Yes you have had similar problems?
or Yes there is more to it than the O2 sensor?

[Skycity_BMW]

I found out that 1222 is "Lambda Control #1"
via: http://www.bimmerzone.com/fcodes.htm

Yeah. . . from what I've read . . . . it's and O2 sensor . . .

Good Luck ! ! !

[bimmerman333]

Originally Posted by kelminr

It started out as a rough idle, but I noticed that as the car got to normal operating temp, it would start to sputter and hesitate when accelerating. Now it does it right when you start it until it gets warm, but then soon after it reaches normal operating temperature, it starts again with the rough idle, and hesitation.

Also the check engine light would come on but go out as I was driving, but today it stayed on. I checked what the fault code readout was, and I am pretty sure that the code it was giving was "oxygen sensor control out of range" (1222) does this mean I need to replace the sensor or is it more than that?

Has anyone had similar problems? Did a new O2 sensor fix the problem? Any help would be greatly appreciated.

had same prob with my 93 and the o2 sensor did the trick.

[kelminr]

thanks guys will try the O2 sensor

[kelminr]

tried the O2 sensor, no luck. The car still hesitates once it reaches normal operating temperature. Also if I slow down, like at a stop light or stop sign, sometimes the RPM's will drop enough that the car dies. Now the check engine light has gone out but comes on and goes off erratically. It hasn't stayed on, so I can't check the codes. I at a loss now... Any Ideas?

[Skycity_BMW]

Hey kelminr,

Check out this forum: http://www.maxbimmer.com/forums/show...threadid=36623

This may help you. . . .

Good Luck ! ! !

[kelminr]

Thanks for the link sky city, I will be looking into that.

[bimmerman333]

you can also try removing the idle control valve and clean the contacts, its located under the fuel rail , cylindrical in shape with hose on each end. worth a try, try the cheapest and easiest ways first. good luck.

[kelminr]

Will try that, but seems that idle is not really the problem now, still hesitates and lunges when accelerating though. Thanks for the advice.