[Formula413]

Originally Posted by MetroMPG

I like being able to view fuel trim with this tool.


Fuel trim is the mystery variable behind the EGR fuel savings theory. It's where the 02 sensor data goes: constantly into Short Term to maintain stoich. Short Term, when it maxes out in either direction, informs Long Term and then resets to 0 to start all over again.

More details about fuel trim:
cache:V2LZ-m60NAQJ:theautomotivetechshop.com/contentEditor/link2file.php3?file=OBD%20Fuel%20Trim.pdf&linkas=4 short term fuel trim emissions - Google Search

Where was this link supposed to go? It doesn't work for me. I can program in fuel trims as X Gauges on my SG2, but I didn't know how to interpret them re:efficiency so I never used them.