AFR understanding

cre · 03-03-2010, 04:45 AM

I will get back to you on this soon, I promise... Just been VERY busy.

Let's start with this though:

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You cannot adjust the AFR for upper-mid loads or throttle less than about 70% (or 2.70v at the TPS). In order to do so you would need to force the ECU into open loop operation full time and I don't recommend it except under special circumstances... the potential benefits are too small to justify the potential headaches.

03-03-2010, 04:45 AM	#2
cre Toyota Racing Development Join Date: Apr 2007 Posts: 5,038	I will get back to you on this soon, I promise... Just been VERY busy. Let's start with this though: You cannot adjust the AFR for upper-mid loads or throttle less than about 70% (or 2.70v at the TPS). In order to do so you would need to force the ECU into open loop operation full time and I don't recommend it except under special circumstances... the potential benefits are too small to justify the potential headaches. __________________ If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum. If you're so inclined I'm always more than happy to accept tips via PayPal. Tip Jar --->