ECU Mapping Diagram
#1
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We are trying to hook up a air/fuel ratio gauge. We have tried to hook it up to the ecu instead of running it through the firewall to one 02 sensor. There should be 2 different banks to tap into on the ecu. We are going to hook a toggle switch to go between each bank to see which runs leaner. So far every diagram I got has not worked. Does anyone have the correct diagram or know which number and color on the ecu to tap into for each bank? I have an 03 5AT coupe.
#3
#4
Keith check out the link: http://www.autometer.com/cat_gaugede...earch&gid=3531 IT says will work with most narrow band 02 sensors.
Edit: It also says may require 2244 in the Accessories Section, which is an 02 sensor
Edit: It also says may require 2244 in the Accessories Section, which is an 02 sensor
#5
Originally Posted by FL-G35
Keith check out the link: http://www.autometer.com/cat_gaugede...earch&gid=3531 IT says will work with most narrow band 02 sensors.
Edit: It also says may require 2244 in the Accessories Section, which is an 02 sensor
Edit: It also says may require 2244 in the Accessories Section, which is an 02 sensor
#7
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#8
#9
Ok, so it is better to have a wideband AFR because it is more accurate and do not tap into the ECU because that can cause problems or headaches. Unfortunetely I already have the gauges. Both the boost and AFR are installed. Just AFR is not connected. Since I already have that my best bet is to just buy the 02 sensor option and get it welded in, right? Or could I just tap into one of the sensors already there? Thanks for all the help guys
![Big Grin](https://g35driver.com/forums/images/smilies/biggrin.gif)
#10
Originally Posted by FL-G35
Ok, so it is better to have a wideband AFR because it is more accurate and do not tap into the ECU because that can cause problems or headaches. Unfortunetely I already have the gauges. Both the boost and AFR are installed. Just AFR is not connected. Since I already have that my best bet is to just buy the 02 sensor option and get it welded in, right? Or could I just tap into one of the sensors already there? Thanks for all the help guys![Big Grin](https://g35driver.com/forums/images/smilies/biggrin.gif)
![Big Grin](https://g35driver.com/forums/images/smilies/biggrin.gif)
#11
#12
I spoke with Sam at Stillen and he said that there is no problem with connecting the meter to the ecu. He said that he has done it many times before with autometer guages. He said pin #16 is the correct one to tap into. The ONE thing I forgot to ask was about the "Larger Blower" That will be another call.
![Big Grin](https://g35driver.com/forums/images/smilies/biggrin.gif)
![Big Grin](https://g35driver.com/forums/images/smilies/biggrin.gif)
#13
Originally Posted by FL-G35
I spoke with Sam at Stillen and he said that there is no problem with connecting the meter to the ecu. He said that he has done it many times before with autometer guages. He said pin #16 is the correct one to tap into. The ONE thing I forgot to ask was about the "Larger Blower" That will be another call.
![Big Grin](https://g35driver.com/forums/images/smilies/biggrin.gif)
![Big Grin](https://g35driver.com/forums/images/smilies/biggrin.gif)
![Big Grin](https://g35driver.com/forums/images/smilies/biggrin.gif)
#14
Originally Posted by FL-G35
I spoke with Sam at Stillen and he said that there is no problem with connecting the meter to the ecu. He said that he has done it many times before with autometer guages. He said pin #16 is the correct one to tap into. The ONE thing I forgot to ask was about the "Larger Blower" That will be another call.
![Big Grin](https://g35driver.com/forums/images/smilies/biggrin.gif)
![Big Grin](https://g35driver.com/forums/images/smilies/biggrin.gif)
![Big Grin](https://g35driver.com/forums/images/smilies/biggrin.gif)
![Mad](https://g35driver.com/forums/images/smilies/mad.gif)
![Mad](https://g35driver.com/forums/images/smilies/mad.gif)
![Mad](https://g35driver.com/forums/images/smilies/mad.gif)
Ok, that's cool. When do you think you will talk to him again?
#15
Originally Posted by ttrank
YOU FORGOT!!!!!!!!
Ok, that's cool. When do you think you will talk to him again?
![Mad](https://g35driver.com/forums/images/smilies/mad.gif)
![Mad](https://g35driver.com/forums/images/smilies/mad.gif)
![Mad](https://g35driver.com/forums/images/smilies/mad.gif)
Ok, that's cool. When do you think you will talk to him again?
![Wink](https://g35driver.com/forums/images/smilies/wink.gif)