1JZ fuel cut?

mkIIIman089

Supramania Contributor
Mar 30, 2005
3,061
0
36
Ohio
Hey everyone, 1st off I figure I should mention I am pretty much totally clueless on the ins/outs of the 1JZ, but this is for a buddy of mine so bear with me. He is not using the stock twins or any of the stock intake/exhaust stuff and it has a walbro fuel pump and an Aeromotive AFPR.

What does a 1JZ fuel cut feel like, and when does it kick in/what makes it kick in? What we were experiencing felt much more like a controlled electronic buffer that still allowed the engine to run and rev up but "sputtery" and slower and never let it see passed .94 bar. Which is nothing like the 7M's version, but it seems like it is fuel cut being that it happens at almost exactly the same boost every time. (to the .01 bar nearly)

So is this fuel cut or should we be looking into something else? Other then this it runs perfectly smooth.

Thanks!
 

daren

New Member
Dec 8, 2005
14
0
0
niles michigan
mkIIIman089 said:
Hey everyone, 1st off I figure I should mention I am pretty much totally clueless on the ins/outs of the 1JZ, but this is for a buddy of mine so bear with me. He is not using the stock twins or any of the stock intake/exhaust stuff and it has a walbro fuel pump and an Aeromotive AFPR.

What does a 1JZ fuel cut feel like, and when does it kick in/what makes it kick in? What we were experiencing felt much more like a controlled electronic buffer that still allowed the engine to run and rev up but "sputtery" and slower and never let it see passed .94 bar. Which is nothing like the 7M's version, but it seems like it is fuel cut being that it happens at almost exactly the same boost every time. (to the .01 bar nearly)

So is this fuel cut or should we be looking into something else? Other then this it runs perfectly smooth.

Thanks!


im not sure but ive heard that 1j fuel cut is alot different its not like hitting a wall like the 7m. i assume its somthing like a knock sensor timming adjustment
like when your running crappy gas you may want to doubble check that i really dont know any more than that if thats even corect