| Go back to previous topic | | Forum name | Performance/Engine | | Topic subject | o2 sensor check help | | Topic URL | https://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=21956 |
21956, o2 sensor check help
Posted by pn0ymahal, May-01-02 07:23 AM
recently i have been posting in the turbo section since my a/f never hardly goes rich anymore... i got no cel my car runs mostly at .87v or just moves around even at wot! how would i check my front and rear 02 sensor to see if its still good? if its fouled how do i know a little black or alot ? which is more common to go back without a cel? could it be bad without a cel? if my o2 was bad i would run rich not leaner right?
Michael 99gs
Boost It!
Mods:
no time to put in yet:315cc injectors.
Hrc Stage 2
S-FMU
Crane HI-6DI2
Greddy Type S Bov
VC-2
Road Race Catch Can
Greddy Profec B & Switch
Apexi WS Catback
Super Afc
Autometer Boost,
Egt,Tranny Temp Gauge & Cooler
Air/Fuel Light & Digital
Tokico Adjust Struts
Eibach Pro Kit Springs
Front & Rear Upper Bar
CarCraft Interior
Sound System= Bring it On
|
21957, RE: o2 sensor check help
Posted by 992gnt, May-01-02 08:00 AM
You can have a bad o2 without a cel. Basically, to check it you can use your current gauge or stick a voltmeter on it. If it is cycling at idle it's probably good. If it cycles slowly or not at all, it's bad. There is a heat/resistance test in the Chilton's book I think, but I'm not sure about that.
|
21958, RE: o2 sensor check help
Posted by pn0ymahal, May-01-02 08:26 AM
if one of my o2 is bad wouldn't my a/f be rich or not working at all? if its bad would this cause a leaner reading no matter what even at wot?
Michael 99gs
Boost It!
Mods:
no time to put in yet:315cc injectors.
Hrc Stage 2
S-FMU
Crane HI-6DI2
Greddy Type S Bov
VC-2
Road Race Catch Can
Greddy Profec B & Switch
Apexi WS Catback
Super Afc
Autometer Boost,
Egt,Tranny Temp Gauge & Cooler
Air/Fuel Light & Digital
Tokico Adjust Struts
Eibach Pro Kit Springs
Front & Rear Upper Bar
CarCraft Interior
Sound System= Bring it On
|
21959, RE: o2 sensor check help
Posted by pn0ymahal, May-01-02 03:06 PM
i just replaced my front o2 sensor still no rich a/f... i notice on my ob2 program that sensor one goes up and down mostly within the middle not a nice curve... sensor 2 is juat at the bottom chillin going straight at idle moves a 1/2in hehe if i make it =)... if i do get rich its up to 2psi and the lines are at the top going straight, but once i step on it drops down to .87-.90v... sometimes less
could my second sensor be bad again?
Michael 99gs
Boost It!
Mods:
no time to put in yet:315cc injectors.
Hrc Stage 2
S-FMU
Crane HI-6DI2
Greddy Type S Bov
VC-2
Road Race Catch Can
Greddy Profec B & Switch
Apexi WS Catback
Super Afc
Autometer Boost,
Egt,Tranny Temp Gauge & Cooler
Air/Fuel Light & Digital
Tokico Adjust Struts
Eibach Pro Kit Springs
Front & Rear Upper Bar
CarCraft Interior
Sound System= Bring it On
| |