Search results

  1. M

    fuel pressure not staying constant

    hey everybody. i've hooked an afr gauge up to my car and am working on getting my fuel dialed in just right, but i'm having a hard time understanding why my fuel pressure drops down to like 32 psi from about 40 psi. under hard acceleration i'm holding good around 39-40 psi and my afr is good...
  2. M

    Help w Quarterhorse on 331 & My A9P is no good / What are possible causes of failure?

    yea you can get several different mass air transfers from eec analyzer. i used to ProM-30 for my pro-m 75mm meter (i guess that was the correct one to use). i'm gonna be adjusting my curve to match my LAMBSE anyways so as long as its close. where do you all get ur injector settings??? i have...
  3. M

    No ground on TPS sensor (ran new ground and fixed it) more problems!!

    thanks man. i'll check my computer for that when i get home its already pulled out anyways. i found a picture and it looks like it should be kinda obvious. as far as what caused it...theres a good chance when i tried to pull codes i hooked to the underhood light connector cause i couldn't get...
  4. M

    30# super couple injector slope/offset

    does anyone know where i can get the correct injector slopes and offset for the 30# injectors that came on the super couples? :shrug:
  5. M

    No ground on TPS sensor (ran new ground and fixed it) more problems!!

    So I've been trying to figure out why my tuner wasn't showing a few sensors (ECT, ACT, TPS) Well i found that the black wire on my TPS wouldn't ohm to ground...so i ran a wire from it to my firewall and wow...all three of those sensors now read. Does anyone know what would cause this. I think...
  6. M

    very high air/fuel ratio...sputtering...bad gas?

    i finally got my wideband hooked up and my car at idle is running at 20:1 afr which is way high. even when i rev up on the engine the ratio only drops to about 16:1. I've adjusted my fuel pressure from 40 to 30 psi and it had no affect! i have 30# injectors too. it has new plugs, coil, rotor and...
  7. M

    alternator upgrade and wiring question

    thanks for the help fellas. sorry but i must have overlooked the sticky. i did a search on it but for some reason i didn't see it. i'm having some recent cooling problems after installing my afco radiator...i think my problem is more than a fan but this is something i've wanted to do for a while...
  8. M

    alternator upgrade and wiring question

    I'm going to be doing the Mark viii fan upgrade but first wanted to get my electrical system in order first. i'm thinking about going with the sn95 130 amp alternator...but i hear there is a wiring harness that i will need. is all i need the pigtail harness? if so...how do i know what wires to...
  9. M

    bad vibration in dash

    yeah no doubt. a couple of them were backed off pretty good. i guess thats the thing about buying used vehicles...u never know whats been done. like u said, that was an accident waitin to happen!
  10. M

    bad vibration in dash

    i should have checked this before starting a thread...but all 4 bolts were loose on the driveshaft. yeah, i can see that causing some vibration haha. anyways, i put some thread locker on em and bolted it back up...smooth as silk! thanks for the help. i'm just glad thats all it was....:nice:
  11. M

    Super hard vibration at 70 when letting off gas

    i have a 2000 gt and its doing the exact same thing! only quits when i smash the pedal. and it really does it from about 50 mph +. let me know what you figure out, i was thinking that it might be the driveshaft too. all i know is that its a ****** to drive the car like that and is very annoying!
  12. M

    bad vibration in dash

    i just bought a 2000 mustang gt and it recently developed this bad vibration that shaked the crap out of my console. the faster i go the worse it gets...but it only does it when i'm off the gas. if i smash the pedal it goes away but starts to vibrate again at half throttle or when i let off it...
  13. M

    bad coil pack? motor missing/sputtering..i'm lost!

    yeah i've looked around for cracks in the intake but i can't see anything noticable. i finally got it running good and its not missing...but after driving around i noticed some steam coming from under the hood when i parked it, and it definitely smelled like antifreeze. i popped the hood and...
  14. M

    bad coil pack? motor missing/sputtering..i'm lost!

    oh i forgot...the hole that had the water in it wasn't the one that had the loose coil pack. the coil pack in this hole was down in there tight...i have no idea how water would have got down in there past the rubber seal on the coil boot...any ideers??
  15. M

    bad coil pack? motor missing/sputtering..i'm lost!

    thanks for the replies guys! for such a small problem i sure as heck learned a whole lot more about my new car! i started my engine and unplugged the coils one at a time and everyone pulled the motor down except for the coil on #8 cylinder. so i thought well that coil is bad. the next thing i...
  16. M

    bad coil pack? motor missing/sputtering..i'm lost!

    i just replaced the gas filter a couple months ago so i'm good there. the old one was filthy by the way. i thought about the iac being dirty...i'll go ahead and try that. but would it make the car run funny all the time even under full load?
  17. M

    bad coil pack? motor missing/sputtering..i'm lost!

    has anyone had a problem that sounds like this....or if anyone has had a bad coil what were the symptoms? i don't want to spend $200 with new coils and plugs and have the same problem! i put a new fuel filter in so it can't be that. i found a black wire coming out of the fuel injector wiring...
  18. M

    bad coil pack? motor missing/sputtering..i'm lost!

    i thought about replacing them but the car only has 75,000 miles. when do the coil packs usually go bad or need to be replaced?
  19. M

    bad coil pack? motor missing/sputtering..i'm lost!

    hey man thanks for the quick reply! no it still has the stock air inlet on it. the motor is completely stock as far as i know..other than a 75mm BBK throttle body. when it first started doin this it would run smooth at low rpm's and once i gave it so much gas it would sputter bad. but now it...
  20. M

    bad coil pack? motor missing/sputtering..i'm lost!

    hey guys i just bought a 2000 GT and all of a sudden the motor started runnin funny, kinda like its missin. at first i thought bad gas but i've filled up since and it won't go away. i noticed one of the COP's (coil pack) had worked its way up cause the bolt holdin it down was broke so i thought...