I just finish installing my 4-wire o2 sensor on my b16. And since then my a/f guage continously flucuates from lean to stoic/rich, while I'm just cruising and sometimes at a stoplight.

Would this be b/c of a shitty a/f gauge, or is it just how the a/f is w/ a b16 running a p30 ecu.

P.S.-The engine had the incorrect 1 wire o2, causing a code 41 (sensor heater), which is why i replaced it with the proper 4-wire. Now no CEL, but funny a/f readings. What could be going on??

TIA to all that can help!

 

my friend had an autometer air/fuel guage and it didnt really work all that well it jumped around alot... i dont think those things are that acurate.. if ur lookin for acuracy get a wideband o2 sensor

 

Yeah thats what I've heard there not very good gauges at all. The guage came with the car so i don't know if its wired correctly, either (not that it really matters)

1hotintegra: You said your friends gauge does that flucuating too, it doesn't mean somthing bad then does it?? And thanks for the response, it made feel a little better about the whole situitation

 

You have a narrowband 4-wire guage, that's the problem. It's not accurate. You want accurate readings, get a wideband setup.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 96dc2 &raquo;</TD></TR><TR><TD CLASS="quote">You have a narrowband 4-wire guage, that's the problem. It's not accurate. You want accurate readings, get a wideband setup.</TD></TR></TABLE>

Thats what i though, thanks for the help everyone.

 

Can the wideband be used as a primary?

 

Some of the ones available have a feature where you can convert it to a 1V signal to use with stock ECU's.

 

TurboXSi:
What you're seeing is normal. If the computer receives a lean signal from the sensor, it will richen the mixture. When the signal changes in response to the richening, the computer will receive a signal when it's too rich and will begin leaning it out. This happens continuously in closed loop.