hello peoples, this is my first post, i got a link to here from posting a question on CAA - www.caraudioaustralia.com
so i hope you can help me. i am a 3rd year apprentice mechanic (at holden, sadly, please dont hold it against me) so i have a little clue about how things should work and what makes them do so, but this has me stumped.
my car is a manual 1992 EB XR6 - http://cardomain.com/id/falconxr6
- and it has issues.
when you free-rev it, it hits the limiter no worries, but when in gear and under load ie flat to the floor in second, it will not rev past 4750 rpm. when you pick the next gear, it kind of hesitates before picking up and accelerating again.
the cat is not damaged externally, i have replaced the fuel filter, dizzy cap, rotor, leads, fitted a K&N pod filter, checked the fuel pump flow rate - 300cc in 10 sec, spec is 280cc in 10 sec - reset the computer, fitted a new thermostat (was stuck open) visually checked anything that i think may affect the cars ability to rev.
the middle muffler (before the diff) is a little knocked about from the previous owner using it as a bash plate, and i checked the plugs and noted they were all whiteish (running lean on all cylinders, so i dont think an injector problem) tried to clamp off the return line to check if i had enough fuel pressure but the clamped connections sprayed fuel everywhere so i figured it had enough. i will try to get a pressure gauge on it this week to check a little more scientificly, but is there anything you peoples can think of that would make my car do this?
i just had a thought now that maybe the injectors arent getting enough voltage to open properly, what voltage should they be? 12v at each injector?
sorry for the long post but i tried to give you all as much info as possible, i know that too much is better than not enough - bit like horsepower, hey?