Running too rich.. then too lein..?

[deputy865]

Never ending cycle

I got my wideband hooked up(AEM w/ Uego). It was fairly easy since my downpipe already had a port drilled out for it. Now, I'm new to a wideband, what numbers should I expect to see from it under normal driving conditions? While boosting? During max boost? During idle?

My car was running pretty good yesterday. Today, it will not rev past 3k very easily.. Sometimes it does, but the max is 5k. When it hits these extreme's, it kind of bounces like its being maxed out. When I'm at WOT, the car eventually drops in RPM (bogging down). It also never gets above 5psi.. As far as vacuum goes, I never see more then -10.. Usually stays between -5 and -10. Are my brand new plugs (NKG's) already fouled out? I'm getting some pretty extreme numbers from the wideband. I haven't been driving the car, just revving it up at a standstill.

From watching the wideband.. The car starts out at 14.8, which I know is perfect.. But it slowly climbs alllll they way until it reads "- - -"... Under throttle or boost, it goes the other way, allll the way until it reaches 10.0. I know that isn't right. Am I running too rich or to lien?

Of course I have a video for you.. You can see that it is already starting to climb from 14.8 at idle, but then when I start to give it gas, you can see and hear the hesitation in the car and watch it eventually make its way to 10.0.

You Tube

You Tube

Also, any tips on installing gauges? Not only do I have to hide and conceal my wideband, but I have boost, oil temp, oil press., water temp and fuel press. to hide and install as well.

Only things I can think of would be plugs? It was running pretty decent yesterday right after I plugged my MAP in. The MAP vacuum line is not plugged in though, not sure if that is a must or not, I just want the car running perfect right now. No codes are being thrown. Though my stupid oil level light comes on, but my oil is full.. Assuming its faulty, but it makes me nervous either way.

EDIT: I never calibrated the wideband, I literally just installed it.. Then checked for the numbers I was getting. Car is still not running correctly, wideband doesn't have to work to tell me that though. Its definitely 1000% better then it was before, but won't rev to high and acts like its getting too much of something (air/fuel)

Shane

[TheEngineer]

CALIBRATE IT!!. How can you expect to see correct numbers without calibrating it first. You know you will need to remove the sensor to calibrate correctly right?

Also are you letting the car warm up first? Do you have a MBC? Did you put a plug on the end of the map sensor vaccuum line, otherwise you would create a vacuum leak.

[Russell D]

The lower the number the richer that A/F mixture.

Having a 10:1 ratio would not cause that much of a hesitation. I would check your timing; if that's correct I would check if the AFM is dirty