NEED HELP USING THIS TOOL.

Trying to find out where do i connect my wideband?
Will i need to change the parameters for the wideband to work?
Do i just apply the auto tune after i set my target a/f ratio?


current setup is : moates demon, crome pro, and burn2

 

You connect your wideband signal out wire to the stock ECU O2 white wire. You need to adjust the target lambda in crome, (the green target with the Lambda sign).

You go to file-settings-tuner logging to set up which wideband you are using for the voltage values.

File-settings-tuner-set the auto adjust conditions. I usually do 0% and 5% and have all the boxes checked.

You would then drive around and click the lambda symbol and it will log the AF ratios. If you have "live auto adjustments" clicked on, it will update the maps periodically. If not you can click "auto adjust map" and do it yourself

 

Just going to put this out there for you guys new to DIY tuning. Using the auto tune feature in Crome is not 100%. If you search around you will find numerous thread about not using it as a crutch to tune a car.

Learn how to make the changes and do it yourself. You will be happier in the long run.

Also, if you connect a 0-5v signal from the wideband to the ECU's stock O2 sensor input you should know that it will only read up to 3.48v. However, any reading over 3.48v would be way out of any usable AFR. You would obviously adjust the fuel anyway.

 

i'm very familiar with tuning speed density system. just trying out the crome software and have some questions.

how would i place my data logs in a excel spreadsheet or review my actual vs my target?

 

There are built in features for map tracing if your talking about auto tune I bet your on crome pro?

 

yes i'm using pro

thank morbius18 that info got me up and running.

also would like to mention that you will need to change the gear settings, lambda and water temp in tuner logging. gears 0-5th gear, lamda 0-1.5 , temp 0-200c.

 

Where you set your lambda voltage depends on the wideband O2 sensor voltage output. Don't forget to check for O2 voltage offset as well.

There is really no need to change the temp setting from 90°C to 200°C. If your engine gets up to 200°C (392°F) you have some cooling issues. 0 - 100°C (32°F - 212°F) should be more than enough.