so confused, idle has a mind of its own. - PeachParts Mercedes-Benz Forum

GregoryV022 · #1 09-29-2009, 10:06 PM

Quote:

Originally Posted by tinypanzer

I see that you had vacuum leaks in your injector seals. Is it possible that somebody richened up the idle mixture in order to compensate for that? If so, then fixing the problem reveals the bad adjustments. Is your lambda tower still sealed, or has it been opened?

Also, check to make sure that your throttle linkage is adjusted properly, and moreover, that the idle switch is engaging when you take your foot of the gas. First check the switch for visible activation, then pull off the wires and hook up a meter and make sure that the switch electircally opens and closes as it should.

well i doubt somebody richened the idle mixture but its not out of the question. how would i go about checking that.

and about the lamda tower. no idea what that is. (i guess i don't know as much as i think i do). but again. help in checking.

the idle switch i will check ASAP.

i also just remembered that i am running very old spark plugs as far as i am concerned. will pull those and check their condition ASAP

tinypanzer · #2 10-05-2009, 10:24 PM

Quote:

Originally Posted by GregoryV022

well i doubt somebody richened the idle mixture but its not out of the question. how would i go about checking that.

and about the lamda tower. no idea what that is. (i guess i don't know as much as i think i do). but again. help in checking.

the idle switch i will check ASAP.

i also just remembered that i am running very old spark plugs as far as i am concerned. will pull those and check their condition ASAP

The Lambda tower is a metal tube that sits between the air meter intake and the fuel distributor. It lines up with the grommeted hole on top of your air cleaner housing. If it has a metal BB lodged in it, then it has never been monkeyed with. If the BB is missing, or the top of the tower sawed off, then it has.

GregoryV022 · #3 10-06-2009, 09:07 PM

Quote:

Originally Posted by tinypanzer

The Lambda tower is a metal tube that sits between the air meter intake and the fuel distributor. It lines up with the grommeted hole on top of your air cleaner housing. If it has a metal BB lodged in it, then it has never been monkeyed with. If the BB is missing, or the top of the tower sawed off, then it has.

the car is with the indy right now. ill check it once it gets back.

as far as checking the idle switch. how would i go about doing that. i have a multimeter just very little practice in how to use it.

tinypanzer · #4 10-07-2009, 06:07 PM

Well, let's see what your indy says and what he's able to fix. Then we'll dig into that.

GregoryV022 · #5 10-07-2009, 10:37 PM

Quote:

Originally Posted by tinypanzer

Well, let's see what your indy says and what he's able to fix. Then we'll dig into that.

my indy is replacing the plugged pre-cats. for $1000. that seems like a bit much.

Bill Adkins · #6 10-07-2009, 10:40 PM

The cats will cause a lack of power and if really restricted a poor idle or hard start but shouldn't have as much effect on varying of idle speed
Bill