Lambda Control #2

[ronn227]

My car was stuttering on the highway. I came home and tried to restart it and it had a rough idle, then when I tried to take off, it died on me.
I read the fault code and it was "Lamda Control #2" which is Oxygen Sensor #2.

I did some research and found out this may be due to various things, such as:

1) Bad O2 sensor
2) Bad spark plugs
3) Intake Manifold Leak

I will change spark plugs and both O2 sensors but I wanted to know
how do you check for Intake Manifold Leak? any other suggestions?

[Jon K]

My car was stuttering on the highway. I came home and tried to restart it and it had a rough idle, then when I tried to take off, it died on me.
I read the fault code and it was "Lamda Control #2" which is Oxygen Sensor #2.

I did some research and found out this may be due to various things, such as:

1) Bad O2 sensor
2) Bad spark plugs
3) Intake Manifold Leak

I will change spark plugs and both O2 sensors but I wanted to know
how do you check for Intake Manifold Leak? any other suggestions?


Quick an easy vacuum leak is to pop the oil cap, the idle should change a little bit. If that doesnt work you can go and get throttle bottle cleaner spray and start spraying cracks where gaskets meet, if you find a leak, the fluid will be ingested and the RPM will change.

[ronn227]

what spray should i use to check hoses? A non-flamable spray like electronic cleaner? Or something with Ether, like starter fluid. I read in an archive that the ether will change the rpm's if ingested.

[Jon K]

what spray should i use to check hoses? A non-flamable spray like electronic cleaner? Or something with Ether, like starter fluid. I read in an archive that the ether will change the rpm's if ingested.


You could use starter fluid, I use TB cleaner. Try not to soak hoses, it can't be good for them. Just be careful. I have a boost/vacuum gauge so its easy to tell if im leaky.

[ronn227]

what's TB cleaner? Would the RPM's increase with any spray?

Because spraying Ether (Flammable) on the hoses seems a bit risky. I'd feel safer spraying something non-flammable like electronic cleaner, but would electronic cleaner make the rpm's rise if a leak was found?

[ronn227]

anyone?