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View Full Version : A/F guage stuck on rich



Captain Morgan
10-01-2002, 10:19 PM
I was cruizing around last night and just happened to notice my a/f blinky meter wasn't moving around at all? did a lil searching and came upon the o2 sensor deal.. could I have a faulty one, could my wiring be loose/messed up, or is my car indeed running full rich all th time even at idle? my clutch has been slipping quite a bit also so could that have anything to do with it?



Redsand187
10-01-2002, 11:20 PM
if you have access to a voltage meter or a DMM, check the voltage from there sensor. Chances are it's shot.
RippinGSX
10-02-2002, 09:26 AM
Rich all the time is probably a dead O2 sensor ;) That's all the A/F gauge is good for, to tell you when the sensor is dead so you actually got some good use out of it :D
GSTClipse
10-03-2002, 02:29 AM
I kind of thought that the "check engine" light goes on with the o2 sensor dies. :confused:
RippinGSX
10-03-2002, 08:31 AM
Originally posted by GSTClipse
I kind of thought that the "check engine" light goes on with the o2 sensor dies. :confused:
Maybe sometimes but mine sure didn't ;)
TSITALONGUY03
10-03-2002, 08:52 AM
Originally posted by Captain_Morgan
I was cruizing around last night and just happened to notice my a/f blinky meter wasn't moving around at all? did a lil searching and came upon the o2 sensor deal.. could I have a faulty one, could my wiring be loose/messed up, or is my car indeed running full rich all th time even at idle? my clutch has been slipping quite a bit also so could that have anything to do with it?

if your gauge is reading rich at idle, is your idle a little jumpy or low?
Timothy Richard
10-03-2002, 09:50 PM
chances are you have a lose connection at the o2 wire that gives the signal to the guage. If you notice when you install the guage if you just give it power and ground it will come on but it will site at full rich then when you connect the o2 signal and start the car it will start jumping around. so check the most simple thing first like the connection to your o2 signal before you start looking at a bad o2 sensor
Captain Morgan
10-04-2002, 03:10 PM
must have just been a fluke, works fine now, just takes awhile as the car has to warm up a bit for it to start working...i dunno?
RippinGSX
10-04-2002, 09:41 PM
The sensor does need to warm before it starts giving a reading. It sounded like it was more of a problem than that not just the initial 30 seconds it takes to start registering.
greenstreak
10-05-2002, 07:58 AM
It was/is probably a loose connection to the O2 sensor signal like someone proposed above.

Bad O2s won't throw a CE from what I have ever read.
TSITALONGUY03
10-08-2002, 07:57 PM
will a bad O2 make your car bogg out and die after its fully warmd up, but the car still pulls strong when its cold? What exactly will happen if the O2 is bad?
F1HolEShoT
10-13-2002, 08:25 PM
Originally posted by GSTClipse
I kind of thought that the "check engine" light goes on with the o2 sensor dies. :confused:

yeah, after a few months...

i disconnected mine once and the computer didnt throw a code for two days...
Blackboost
10-14-2002, 04:48 AM
Originally posted by TSITALONGUY03
will a bad O2 make your car bogg out and die after its fully warmd up, but the car still pulls strong when its cold? What exactly will happen if the O2 is bad?

You car will not bogg out and die after it's warmed up. When you have a bad O2 your ECU goes into open loop form and you'll run pretty rich, your gas mileage will get worse and a lot of black sooth will accumulate in the lower part of your rear bumper.