The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

fuel cut changing in gears

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

stevenr816

10+ Year Contributor
54
0
Jan 29, 2009
Phoenix, Arizona
im getting fuel cut at 10-12psi in first and second, 15psi in third and 20+ in fourth and fifth. does this sound right to you? it doesnt to me.
 
If your experiencing fuel cut at that low of boost pressure I would assume you have a boost leak for starters.

What size of injectors are you using? Fuel managment? Have you confirmed that you are at 100% duty cycle on your injectors and you are in fact experiencing fuel cut?
 
thanks for that, but that doesnt help at all.


im hitting fuel cut at different boost levels in different gears just like i said

1st & 2nd 10-12psi, 3rd 15-16psi, 4th and 5th 20+psi
 
If your experiencing fuel cut at that low of boost pressure I would assume you have a boost leak for starters.

What size of injectors are you using? Fuel managment? Have you confirmed that you are at 100% duty cycle on your injectors and you are in fact experiencing fuel cut?

i have a 16g, k&n filter, and dejon intake tube. no fuel managment or anything,
my only question is why am i getting fuel cut at different boost levels in different gears?
 
IMO i would get, bigger injectors/higher psi FP/safc

maybe the stock fuel management cant keep up with the boost levels IMO

my main guess would aim towards weak fuel pump/ not keeping up when the boost kicks in.

or clogged/dirty fuel filter.
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

  • For sale 4G63 3 inch Magnaflow SS high flow cat
    3 inch Magnaflow stainless cat. High flow. 18.25 inches. Flange holes are 4 1/8 center. Has...
    • Galant665
    • Updated:
  • For sale 4G63 Forge Motorsports BOV
    Original Forge Motorsports bov. Adjustable with over 80 clicks on the dial. Nice to use for...
    • Galant665
    • Updated:
  • Wanted 1g 1991 Black Cherry Eagle Talon
    5-speed
    • bamatalon
    • Updated:
    • Expires
  • For sale Misc Left Over Parts
    Hello, I have a few left over parts for sale, these do not include shipping, please pm me for a...
    • r3dmak
    • Updated:
    • Expires
  • For sale Alpha Injection Clinic 2200cc for 4G63 DSM/EVO
    I have a set of Alpha Injection Clinic 2200cc high z injectors for DSM/EVO. I am stepping up to...
    • spoolinpos
    • Updated:
    • Expires
Back
Top