How do I fix my mtx-l wideband

[igotawdpsi]

Ok, I bought a different wideband to replace my dynojet that I installed long time ago. I am trying to get this SD thing down and I am having issues with it. But for now I am trying to figure out why my afrest seems to be where it should be(around 14.7) but my wideband is not lining up with it at idle. I have recently installed a innovate MTX-L wideband and I am realizing that it is not lining up and I want to know how to get it to do so. Also I have lucas 120/lb injectors that I am wanting to get dialed in. So I don't know if that has something to do with it or not. If you could look at this log to give me any kind of insight as to something that I am missing. Thanks in advance

 

[Dsmkauai]

Have you tried recalibrating it yet. And are you sure it's the wideband and not link that's off.

 

[igotawdpsi]

No I'm not sure if link is off or not, however I just installed the wideband and I calibrated it when I installed it. It may have 50 miles on it.

 

[Dsmkauai]

What do you have the parameters set at in link for the Mtxl.

 

[LiquidX]

First ensure there are no leaks at, around, or prior to the sensor. Do a free air calibration, set the sweep range from 9.5-20 and do the same for the sweep range in link.

At this point with all up to par, assume that the sensor is calibrated correctly and that your AFREst is off.

 

[igotawdpsi]

I just have the settings at what they are from the factory in link and the gauge. 0.00 volts for 7.35 AFR & 5.00 volts for 22.39 AFR. In link I have it setup to use the LC-1 wideband as its what everyone is saying to do.

 

[red_devil]

How do you set the sweep range on the MTX-l?

*edit*

http://www.innovatemotorsports.com/support/manual/MTX-L_Manual.pdf

 

[LiquidX]

Have you verified your fuel pressure and that you have NO exhaust leaks around or before the sensor?

From what I saw, you need to assume that the wideband is correct and that your are not set up correctly yet. Your airflowperrev is high and should be closer to 0.27gm/rev at idle, not 0.35.

You need to adjust the fuel by setting global to the correct value that the injectors are, verifying correct fuel pressure, and then adjusting dead time. Your SD table is all whacked out as well. Go on ECMLink and find Sam from RRE's SD table and start with that one.


Setting the sweep range is done by hooking up the laptop to the gauge and running logworks. A more useful range which increases accuracy is 9.5-20 unless you are going to be running ethanol which runs at a lower stoic range.

 

[igotawdpsi]

My fuel pressure is correct and my only other thing is that my injectors are lucas 120/lb, 1200cc injectors. Everything that i have seen is that they are nowhere near 1200cc so I'm trying to still figure them out by lowering global. Thats correct right? Im new to SD so i will definitly look at sam's table. Thanks for the help again