Q. for Hondata Tech about TSX AFR.

FlashPro questions & answers specific to the 2007-2008 US TSX
Post Reply
VQ30GTR
Posts: 4
Joined: Fri Apr 20, 2012 9:37 am

Q. for Hondata Tech about TSX AFR.

Post by VQ30GTR » Fri Apr 20, 2012 9:53 am

I was hoping I can get an expert answer to this. I had been discussing it with others and I get a bunch of ambiguious answers.
My Question is that a statement was made that the TSX with a particular header will run lean, and the TSX will run in closed loop below 1/2 throttle.

So say we start the car, we are Open, the tables are setting our AFR- correct?
Then at 1/2 throttle we go closed, and the O2 sensors take over? correct?

If that is the case, why would a freer flowing header make any difference in the AFR? If a header can scavenge that much more air through the engine to lean it out, going outside the capabilities of the ECU to adjust, that has to be one heck of an improvement, right?

What am I missing in the statement "Adding a header will cause the car to go lean?"

Thanks.

User avatar
Spunkster
Site Admin
Posts: 18007
Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata
Contact:

Re: Q. for Hondata Tech about TSX AFR.

Post by Spunkster » Fri Apr 20, 2012 10:10 am

You have it backwards. IT runs in closed loop at light throttle and idle and goes into open loop at higher load and wide open throttle.

Post Reply