What does the 1222 code mean in the self diagnostic?

[DORIGTT]

I've got a 1987 325is and I did the self-diagnostic and it gave me a 1222 code.
I used to have a sheet that showed what it meant, but cannot find it. What part's bad?

Thanks in advance for your help.

DORIGTT

[Jordan]

1222 Lambda Control 1

[DORIGTT]

So what does that mean?

[rs4pro3]

Check your O2 Sensor(lamba sensor)

[DORIGTT]

It's new ( past 6 months? )
The reason I did the check is that while driving, the vehicle will flash the check engine light and begin to surge to the point of having to pull over as it is unable to maintain a constant speed. After pulling over I restart it with a huge plume of fuel laden smoke(obviously dumping fuel). After a bit it clears and I've got power as usual.

Any takers?

[Speed25]

Just a thought from something that happened to me.

There's a big round plug underneath your intake that makes a bunch of electrical connections. Two of the wires that go through there are the grounding wires for the fuel injectors. Either one of them gets a bad connection, and the injectors stay OPEN. This happened to me (randomly).

Anyway, pull apart the connector and check to see if the plugs or sockets are green (corroded). This solved the problem on one of my cars, and my current car had the entire plug "bypassed" by a dealer at about 100,000 miles.

[DORIGTT]

Interesting.... ;)

[chesster6969]

Just a thought from something that happened to me.

There's a big round plug underneath your intake that makes a bunch of electrical connections. Two of the wires that go through there are the grounding wires for the fuel injectors. Either one of them gets a bad connection, and the injectors stay OPEN. This happened to me (randomly).

Anyway, pull apart the connector and check to see if the plugs or sockets are green (corroded). This solved the problem on one of my cars, and my current car had the entire plug "bypassed" by a dealer at about 100,000 miles.

Got any pics or more detailed info on this plug? Ive got an 89 325i also and I want to check all the things that could possibly be messed up or close to messing up.

[Speed25]

No pics, but it's easy to see. It's about 10" or so directly below the throttle body. The two pieces of the plug sandwich a steel bracket that comes from the block. It's probably 1 -1.5" around (don't know for sure since only the bracket is left on my current car!).