When is a tune absolutely needed?

Baer383 · 02-17-2013, 12:51 PM

After reading the thread most people here don't know how to use Uprev and how are AFR's work,the correction factor is between 75%-125% with 100% being on the money if the ECU moves the AFR toward the 75% it is taking away fuel and toward 125% it is adding so the reason for tuning is to get the car to run as close to 100% as possible so the ECU has full range to adjust rich or lean depending on the information it receives from all the sensors.

If the ECU is not adjusted properly let say it at a giving RPM and load it is running 125% it is maxed out and can not add anymore fuel this is why it is VERY IMPORTANT to get it to 100% so it can do it job.

You guys get the point.

02-17-2013, 12:51 PM	#16 (permalink)
Baer383 A True Z Fanatic Join Date: Aug 2010 Location: Lawrenceville,Ga Posts: 4,293 Drives: My foot up your azz Rep Power: 30	After reading the thread most people here don't know how to use Uprev and how are AFR's work,the correction factor is between 75%-125% with 100% being on the money if the ECU moves the AFR toward the 75% it is taking away fuel and toward 125% it is adding so the reason for tuning is to get the car to run as close to 100% as possible so the ECU has full range to adjust rich or lean depending on the information it receives from all the sensors. If the ECU is not adjusted properly let say it at a giving RPM and load it is running 125% it is maxed out and can not add anymore fuel this is why it is VERY IMPORTANT to get it to 100% so it can do it job. You guys get the point. __________________ 2013 ZL1 754 rwhp 747 rwtq

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Tune needed?	ImportConvert	Intake/Exhaust	19	09-16-2017 10:05 AM
Absolutely No Nudity	SailFree	The Lounge (Off Topic)	12	11-11-2012 07:44 PM
Tune needed?	ImportConvert	Intake/Exhaust	2	03-10-2012 11:05 AM
Tune needed in Central Florida	Zedx	Tuning	5	05-27-2011 01:34 PM
I absolutely LOVE this car!	Webby-007	New 370Z Owner	7	07-02-2010 02:23 AM