AEM wideband

[THEKILLERWHALE]

How do I know
If it's wideband?

It's reading about 15 on idle and 18 on just cruise

That is way wrong.

What are good ranges and how do I get them there?

 

[gofer]

You creating two threads about the same problem KILLERWHALE isn't going to get you more answers to the question, its going to make our site staff upset with you and the two threads will be MERGED anyway. Please refrain from doing it again in the future, once you post about a problem stick to troubleshooting it in that thread.

Thanks.

 

[THEKILLERWHALE]

Okay sorry. Will do

 

[scott90gsx420]

Well i was going off the assumption there were no exhaust leaks my bad.
Lol if there are no leaks then upping the fuel pressure will help..
If im wrong WISEMAN please explain but it seems like common since too me that would be a way to help balance out the lean issue untill he can get link/safc installed..

As far as boosting on a new motor Yes it is good to boost it IF you can tune it.. If there is no way to tune the car and your running lean then boosting it is just going to cause detonation and rattle everything as its seating... WHich you can guess yourself where that would lead..

 

[BigRSnail95]

I must have missed this part. If you are on stock injectors and do not have a fuel tuning device, put your fuel pressure back to 43psi. Your ECU expects your injectors to flow at 43psi not 52psi. You are injecting too much fuel doing that.

If you have to up your fuel pressure to get your wideband reading right then you have an exhaust leak pre sensor that you need to find and fix. That's another reason why I prefer to run the wideband in the front o2 sensor location and utilize narrow band simulation.

Fix your issue, don't cause more.

if you have a AEM wideband if you look in the booklet that comes with it they recommend not to put the sensor no closer than 36 inches from the turbo or o2 housing and 18 inches on N/A engines. They say it could cause the sensor to fail faster. although i dont suppose it would hurt to move it up there for a test to see if it helps incase you do have a exhaust leak pre sensor.

 

[lil corb]

Is that only for aem? I want to run a innovate wide band where the front O2 is and use the NBS on dsmlink.

 

[THEKILLERWHALE]

Ya go ahead and up it.. But don't go over 53 or so anything over 10psi above what the injectors were designed for will wear them out faster..
And keep it out of boost until you can get some other sort of tuning devise installed..

Thats why I assumed too, and too be honest I kinna
Settled in the middle at about 49-50 psi fuel pressure. And
I'm getting perfect readings, right at 14.9-15.1 at idle and 11.7-12.1 at
Around 10 psi. So as for the ratio, right on. Now I just gotta figure out the fuel smell from the exhaust( which I was having a problem with at all fuel pressures) and why my cyl 4 plug is coming up wet

Thanks for the help tho!

 

[LiquidX]

Bigsnail, it's 100% fine to run it at the stock position. I have yet to hear anyone killing their sensors at all from running there. Mines been fine for over a year. Searching will yield the same results on here, Link forum, any other car forum out there as well.

Whale, I can pretty much 100% guarantee you have an exhaust leak if yiur AFR is "where it should be" after increasing the fuel pressure higher than whatnthe ECU expects.

You are running very very rich if yiur plugs are getting wet.