Thread: More fuel economy woes.. 2004 2005 GTP

Originally Posted by AjL227

ZZP most likely set PE to come on at ~30-40% TPS to prevent your **** from blowing up, because they know you are risking your engine with that poor mod selection.
Goodbye fuel economy.

So, PE mode puts it closed loop... working from presets and disregarding 02? Not sure where they have any of that set. I would think that, if it was going to be so dangerous as to require PE at that low TPS, they would have advised as such...??

Bear in mind, before this purchase was made (3.5 instead of 3.6), I asked ZZP IF there was a relatively simple, additional mod I could do to support the 3.5. I was told, by them, that the 1.8 rockers would enable me to run the 3.5. Maybe not ideally, but relatively safely was my impression. This was not done as a "Send me the 3.5 because I want MORE!" I wanted a little more, but not without sufficient support. Had I been told that the 3.5 would NEED headers, heads, cam, more significant mods, etc., I would have stuck with the 3.6. I was told, "You would need a set of high ratio rockers(or 95-96 octane) to be able to safely run a 3.5” pulley without any KR." So, I ordered the rockers believing that to be enough. I'm glad my **** has not blown up! But am now more interested in optimizing what I have.

Also, never had the fuel economy to start with!