Ecu not keeping up with lc1

[95tsiawd0330]

i been having a problem now for a couple months now with my car running lean every time i pull away from a complete stop

here is a log of it showing what I mean if you just highligt throttle and wideband you will see my WB still showing 22.1 even when i give it same gas then 1sec later it starts to read like it should.

In the direct access STFT AND O2 FEEDBACK I know you can change the speed on the ECU and WB responding on time because right now it seems that the ECU has a delay with WB

I just dont understand what ones I should adjust in STFTandO2feedback to get them in sync better and not sure if i should make numbers higher or lower

 

[Dsmkauai]

You need to use log works to actually adjust the gauge. Using that and link you can get it spot on, I know I adjusted my range meaning 9:1-20:1 or something till I found a good spot. There's a few other post on here that explain it better, ill try to post in a sec when I find it. I have a mtx-l but uses log works just the same.

 

[95tsiawd0330]

You need to use log works to actually adjust the gauge. Using that and link you can get it spot on, I know I adjusted my range meaning 9:1-20:1 or something till I found a good spot. There's a few other post on here that explain it better, ill try to post in a sec when I find it. I have a mtx-l but uses log works just the same.

Did you see what I mean in the log when i start giving throttle my wb shows 22.1 for a sec then starts to read.what I notice to is my WB gauge fluctuates faster then ecmlink is showing

As far as logworks go I tryed the factory settings and put aux1 and aux2 input to the same values like snowborder explains to do in a writeup that he made still the same way and i tryed to slow the WB down in logworks under advance still with no help

 

[Dsmkauai]

Ok ya couldn't look at log on my phone sorry. How old is the sensor and where is it placed. When my last couple sensors failed it would get stuck lean and then be all over the place. Have you tried recalibrating? Checked over all wires, got a good ground spot for gauge?

 

[95tsiawd0330]

Ok ya couldn't look at log on my phone sorry. How old is the sensor and where is it placed. When my last couple sensors failed it would get stuck lean and then be all over the place. Have you tried recalibrating? Checked over all wires, got a good ground spot for gauge?

o2 sensors placed in the front all wires are good and soldered with good ground sensor was just re calibrate it and wide band is only a month old

 

[Dsmkauai]

Ok well not sure what to tell ya bro. I know I'm moving my sensor back from the stock o2 housing location. I killed a few sensors up there already and don't want to anymore.

 

[boost97gst]

You can run the same wire to BOTH ecu and gauge. It worked for me. Just follow the instructions and make sure the grounds are in the right place and you power it with the proper gauge wiring. I just rewired mine like this for the very same problem you are experiencing. No more probs, both read the same and respond the same from what my eye can tell.

 

[95tsiawd0330]

Ok well not sure what to tell ya bro. I know I'm moving my sensor back from the stock o2 housing location. I killed a few sensors up there already and don't want to anymore.

that why you use a copper shield for o2 but I really never had one go bad in the front.

 

[Dsmkauai]

Ya maybe but I ran 110 leaded gas, and I think it being so close and that killed them quicker.

 

[95tsiawd0330]

You can run the same wire to BOTH ecu and gauge. It worked for me. Just follow the instructions and make sure the grounds are in the right place and you power it with the proper gauge wiring. I just rewired mine like this for the very same problem you are experiencing. No more probs, both read the same and respond the same from what my eye can tell.

yea I have all the wires installed like ecmlink tells you how in the wiki section but you know whats weird when I grounded my gauge to the intake bolt it made my WB read 4 points off on link .

What I been reading is its normal to have a lag o2 sensor tracing. I don't know

I'm starting to think my problem with going lean when pulling away from a stop is the mafcomp sliders not set right in the low mafraw Hz.

Ya maybe but I ran 110 leaded gas, and I think it being so close and that killed them quicker.

s**t. I wish I was in Hawaii right now with my car but yes I can see running 110octane killing a o2 in the front

 

[snowborder714]

Have you done a free air calibration lately? Or calibrate the heater circuit when you initially installed the sensor (or if you have installed a new sensor lately)?

If not, I'd try a free air calibration next and see if that changes anything.

 

[boost97gst]

yea I have all the wires installed like ecmlink tells you how in the wiki section but you know whats weird when I grounded my gauge to the intake bolt it made my WB read 4 points off on link .

What I been reading is its normal to have a lag o2 sensor tracing. I don't know

I'm starting to think my problem with going lean when pulling away from a stop is the mafcomp sliders not set right in the low mafraw Hz.

s**t. I wish I was in Hawaii right now with my car but yes I can see running 110octane killing a o2 in the front

That would denote a grounding problem. You need to ground everything good. My car is so hacked i had to redo most every single ground recently to get a few things sorted. Run new wire or clean the ground spots with a dremel/sandpaper.
If its not one thing its another right??

 

[95tsiawd0330]

That would denote a grounding problem. You need to ground everything good. My car is so hacked i had to redo most every single ground recently to get a few things sorted. Run new wire or clean the ground spots with a dremel/sandpaper.
If its not one thing its another right??

Well I figured it out it was the comp sliders being off a little.

About my ground at intake its new with 0awg wire ran from the battery in the truck thats why I said its weird because its basically. grounded at battery