will bad o2 sensor affect performance?

[coupe_nasty]

i have a bad o2 sensor (the one closer to the engine) just wondering if this will affect performance at all? acceleration?

 

[98mitsubishigst]

Yes it will. Normally when my dsm's o2 sensor goes, i had a loopy idle. and also you can have a misfire.

 

[doubleclutch99]

It will most definetly affect the performance of the engine.

 

[Gostlrs]

+1 Yes

 

[knewblewkorvett]

+ 2 on yes. O2 sensors are not that much money and can be had at your local auto parts store. Good luck

 

[Abe'sGST]

of course, you can have a misfire, and also will affect your gas milage

 

[1983gsp]

A bad o2 will only affect closed loop operation. Ie, idle/off idle/cruise. Wide open throttle operation causes the ecu to go into "open loop" operation and the o2 is not looked at by the ecu. The ecu switches to a preprogrammed map. So, will it affect cruise operation? Yes. Wot operation? No.

 

[icancruz]

.....so unless you run at WOT all the time, get a new sensor

 

[CanadianTalonTC]

A bad o2 will only affect closed loop operation. Ie, idle/off idle/cruise. Wide open throttle operation causes the ecu to go into "open loop" operation and the o2 is not looked at by the ecu. The ecu switches to a preprogrammed map. So, will it affect cruise operation? Yes. Wot operation? No.

Word.

Get a new one though, running too rich can wash your cylinder walls if it's excessive and too lean just generally isn't good.

Joel