ok, my set up, d16Z6, t25, s-afc, 450's, stock ECU. I posted this a week or so ago, but never came up with an answer, so here are the things I have done so far to try and figgure it out. I took out my cat and straight piped it, changed my spark plugs to 1 step colder and gapped them to .30, checked my oil, and checked all my afc settings, all are the same. I've been running 93 octane, & the weather has been in the 60-75F here in Michigan. The problem I'm having is I floor it in 1st and 2nd gear and when I hit 6000-6200 rpms it feels like I'm hitting a rev limiter, but I red line at 7200, in 3rd It does it at 5500 rpms. It ran great for a whole month before doing this, just started one day.


Modified by pa2play at 11:57 PM 7/27/2004

 

is your s-afc hooked up right because when i got mine hooked up the person that did it crossed 2 of my wires and it would cut the fuel off at like 6000rpm and i rev my car to 8500 i though it was a fuel pump issue so i changed it but later i found out my vafc was hooked up wrong and now the car runs great

 

yes, I know for sure that the s-afc is hooked up right, I was having fuel problems with an old set of injectors a month ago, and I prbably check that afc wiring serriously 10 times, so I know thats good.