CO2 senser

[pianoguy]

Can not having a CO2 censer affect your motor.

Could it cause your motor to stall out or make the motor sound like it has taken on water?

[Tooch]

Is it a possiblity?? I think it is now!!! LOL

[xdgedgex]

it will mess with the computer. a couple years ago mine would stall at lights and putter alot, feeling like it was out of gas, and ended up being the O2 sensor. so basically i wouldnt take it out if thats what your implying here.

[PatriotYJ]

dude if you have never replaced it before DO IT lol they dont last 250,000 miles, actually most of everything on that jeep is on borrowed time. if its junk it will screw up the fuel supply and you could either have not enough or too much and yes it can make it stall.

[pianoguy]

Well changed O2 sensor and it has not stalled, but some times it still sputters after going down a steep hill when the motor is holding back the Jeep,

I think I may have some injecters that may need cleaning.

[cyberxen]

When is the last time you checked the ignition timing?

[jps4jeep]

Bad O2 sensor will generally cause a either real Lean mixture (does not properly read the Gas/air mixture in the exhaust) or engine simply won't start. as for the sputtering when compression braking... check your exhaust manifold. Might be time for anew one. I get real bad sputtering, and it is seaping out hte exhaust manifold.

[pianoguy]

cyberxen said:

When is the last time you checked the ignition timing?

Can you help me on that one?? Or is it best to pay for someone to do this??

[jps4jeep]

I think you can use a timing light on your jeep.

[cyberxen]

I've got a timing light, you just need the specs. It will be something like XX degrees over TDC (Top Dead Center)

GM cars had the proper ignition timing on a sticker under the hood, I'm not sure on these Amerikraut vehicles.