ok heres the problem the gauge comes on but just goes all the way rich before the car is started and then stays there after its started .... it does move at all .... it a auot meter phatom gauge .. i dont no if it how i wired it in or wut but it worked fine in my other .... just wondering anyone has had this problem before .

 

O2 sensors dont start working until they get 600 degrees hot.... our 2 works by sendin a signal from 0.1-0.9 volts.....
while they are cold an dnot yet 600 degrees they stay in a open mode...
once they get hot, they will start reaading the right ratio....

 

ok thanxs ill have to try driving the car i just started it .. i didnt let the o2 get hot thanxs

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by USDM 4G VTEC &raquo;</TD></TR><TR><TD CLASS="quote">O2 sensors dont start working until they get 600 degrees hot.... our 2 works by sendin a signal from 0.1-0.9 volts.....
while they are cold an dnot yet 600 degrees they stay in a open mode...
once they get hot, they will start reaading the right ratio....</TD></TR></TABLE>

Correct. On my old single wire O2 sensor it would take quite a while to warm up and when it would the a/f gauge would work fine. Then when i put a 4 wire O2 in there, the gauge worked within a few minutes. BTW u might notice the gauge staying at full rich when u stop at a long light or are in the drive thru, because thats when they tend to cool down (single wire O2's that is).

 

my gauge ran better when i put on another single wire o2 sensor just for my gauge