Nissan 370Z Forum - View Single Post - Sticking Throttle

WarmAndSCSI · 07-14-2011, 11:09 AM

The Evo X does the same thing. It's primarily for emissions purposes - the intent is to leave the throttle open a bit and leave ignition timing advanced to burn off excess fuel after the engine has been burning a rich mixture (free-revving would cause this, same with after a WOT pull). Some theorize it has more to do with keeping the catalytic converter(s) healthy. I really have no idea... I don't spend much time thinking about improving emissions when I tune cars. lol

It's annoying, but I know it's normal on the Evo X, and probably the same on the Z.

07-14-2011, 11:09 AM	#13 (permalink)
WarmAndSCSI A True Z Fanatic Join Date: May 2010 Location: SLC, UT Posts: 1,671 Drives: '08 Evo X \| '10 370Z Rep Power: 18	The Evo X does the same thing. It's primarily for emissions purposes - the intent is to leave the throttle open a bit and leave ignition timing advanced to burn off excess fuel after the engine has been burning a rich mixture (free-revving would cause this, same with after a WOT pull). Some theorize it has more to do with keeping the catalytic converter(s) healthy. I really have no idea... I don't spend much time thinking about improving emissions when I tune cars. lol It's annoying, but I know it's normal on the Evo X, and probably the same on the Z. __________________ '10 PW 370Z 7AT - wife's car - Project Raspberry Cheesecake '08 Evo X - built motor+trans \| BB-X @ 32 psi \| CH3OH \| self-built+tuned - ??? WHP '01 Galant V6 - built motor \| GT35R \| self-built+tuned - 550+ WHP (retired) Last edited by WarmAndSCSI; 07-14-2011 at 11:12 AM.