01-30-2012, 12:33 AM
Ken Wrote:I also disconnected the ground to the battery, as i read that the people who had done so swore it ran smoother that why. I figured it couldn't hurt either way so i just did it.
the reason it will run smoother is that by disconnecting the battery you're resetting all the ECU's "learned" parameters. instead of it being started up and the car freaking out because now the airflow is completely different than last time it was running, by disconnecting the battery you are "wiping" its memory and it will automatically learn to accomodate the new intake from the start as it adjusts itself to get back to normal driving algorithms.
this is nothing out of the ordinary for OBDII cars with sophisticated ECU's and high sensor resolution. you should reset the ECU by disconnecting the battery any time you make a change to the engine hardware, tuned or not.
2010 Civic Si
2019 4Runner TRD Off-Road
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Past: 03 Xterra SE 4x4 | 05 Impreza 2.5RS | 99.5 A4 Quattro 1.8T | 01 Accord EX | 90 Maxima GXE | 96 Explorer XLT
2019 4Runner TRD Off-Road
--------------------------
Past: 03 Xterra SE 4x4 | 05 Impreza 2.5RS | 99.5 A4 Quattro 1.8T | 01 Accord EX | 90 Maxima GXE | 96 Explorer XLT