fuel cut ?

[norice4me]

ok here i go i have 510cc injectors and i am running 16 pounds daily. and at the track 20. but all of a suddin when it hits 20 pounds it feel like fuel cut this only happin in 1st and 2nd every other gear is fine. the car was tuned a long time ago should i just have it tuned again or any thing to help me please

 

[talon1979]

I am not sure what mods you have done, but you could very well be hitting fuel cut, especially if you have a 1g mas.

 

[TargeT]

same thing happens to me, im pretty sure its fuel cut too

in first and seccond, right around spool up the car just stumbles hard, then takes off and pulls real strong, i thought it wasplugs at first but im thinking its fuel cut now

 

[norice4me]

yea same here i cheaked my plugs there fine then i lowere my boost today and it seem to be fine. for now bur i ll just wait untill i get 680 or somthin in that range i have the safc and i just got it and i was wondering how to use it.

 

[92Talon251]

I meet a guy recently that drove a galant VR4 when I was having my PK problem I asked him about fuel cut he said that on 1Gs the fuel cut is
15 pounds of boost anything below 15 pounds your fuel shouldnt cut.

 

[norice4me]

yea i new that but it cuts only at 20and up at 19 you can feel it a lil bit but not as much,

 

[talon1979]

Originally posted by 92Talon251
I meet a guy recently that drove a galant VR4 when I was having my PK problem I asked him about fuel cut he said that on 1Gs the fuel cut is
15 pounds of boost anything below 15 pounds your fuel shouldnt cut.

15 psi is a good estimate, but that number isn't always true. If you have a bad boost leak you may hit fuel cut much sooner. The only thing that causes fuel cut is when the computer sees x amount of airflow, then BOOM it shuts things off because it thinks it is going to hurt itself. If you have no boost leaks you will hit fuel cut much later. On a 1g hacked mass I have ran 18lbs before w/ no fuel cut, but w/ a bad boost leak I have hit fuel cut at 13psi. Just some food for thought.

 

[98autogstspyder]

doesnt fuel cut get worse as u go further on through the gears. i wood imagine that 3rd 4th and 5th gear would require more fuel than 1st and 2nd.

i remember when i first put my injectors in, the car wood fall on its face because it got too much fuel. i leaned it out to the correct point and it felt great. u sure ure injectors r tuned correctly?


Tyler

 

[norice4me]

they were tuned a wile ago a long wile. so you think i should have them tuned again or could i do it my self you guys give me some pointers.thanx again.

 

[TargeT]

Originally posted by norice4me
they were tuned a wile ago a long wile. so you think i should have them tuned again or could i do it my self you guys give me some pointers.thanx again.

I check my tune nearly every day :/

unless your real conservative I'd keep an eye on your knock counts ect.. at least once a week (weather changes effect it a lot)
but ya you can tune it your self, check the tech articals on this web site, good info there

 

[norice4me]

wow every day thanx ill start doin that to just to be safe. thanx ill take a look at them so i can tun it too