| Go back to previous topic | | Forum name | 4G63 Tech | | Topic subject | RE: Couple of fuel questions here, and yes I should know this stuff by now...but I'm confused | | Topic URL | http://forums.2gnt.com/dcboard.php?az=show_topic&forum=67&topic_id=8716&mesg_id=8724 |
8724, RE: Couple of fuel questions here, and yes I should know this stuff by now...but I'm confused
Posted by 420a-Tnthewerks, Dec-31-69 06:00 PM
Originally posted by sd240
Ok it seems like my 02 sensor doesn't want to go above .89 volts, and I was even killing my car with too much fuel(black smoke/bogging-rich knock). How high are these sensors supposed to go. Also on high throttle with 2000-7000 set at -25 my o2 reads .76...I'm guessing problem. Is the voltage problem a sign that my o2 is shot or what?
That's a sign you're way too lean up top. Definately give it more fuel where those o2 numbers are.
Edit- You got .89 with it killing the engine? Maybe your o2 sensor is bad or the connection is bad. Get a pocketlogger.
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