look for vacuum leaks on the intake. The dme is trying to bring the mixture into the proper range with the unmetered air to the intake.
Am I right in assuming that Code 1221 pretty much means replace O2 sensor? After I put in a new sensor, how do I turn off the Check Engine light?
The Bentley manual (100-8) says:
...When all fault codes have been displayed, there will be a 0.5 second flash and then the light will remain off.
...
To erase the fault code memory, first make sure the fault code 1000 (....) is present, then depress the throttle fully for at least ten seconds.
http://www.bmwe34.net/e34main/trouble/engine_codes.htm says the same.
I'm just not getting a Code 1000. Instead Code 1221 keeps cycling indefinitely. What am I doing wrong? Is there an updated procedure for the 95s? I guess I could always disconnect the battery, but that's a pain.
Thanks.
Last edited by Eric Fraser; 09-16-2004 at 10:55 PM.
Eric Fraser
1995 525i Auto 102k miles
=========================
look for vacuum leaks on the intake. The dme is trying to bring the mixture into the proper range with the unmetered air to the intake.
erased due to slander
are you saying that you DID change the O2 sensor or are going to?
95 E34 530I V2.37
===========
Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy
going to...
Eric Fraser
1995 525i Auto 102k miles
=========================
the code will clear itself after 50 starts with no problems.
95 E34 530I V2.37
===========
Those who make peaceful revolution impossible will make violent revolution inevitable.
John F. Kennedy
Thanks. I'll look for vacuum leaks, but I think that at 103kmiles on original O2 sensor, replacing it seems like a good place to start...
Originally Posted by Martin in Bellevue
Eric Fraser
1995 525i Auto 102k miles
=========================
Originally Posted by 632 Regal
Eric Fraser
1995 525i Auto 102k miles
=========================
Eric, I had the same code a few weeks ago. I replaced the o2 sensor(s) and the light went out first time I started it after the replacement
95 540 six speed, Rondell 58 wheels, nothin else special
79 911 SC - pea soup green
I have to do the same thing this weekend.
Are the O2 sockets still available at autozone for rental?
dave b
93 525i
156k +