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.

Post a Question

420A Fuel pressure trouble

Please Support ExtremePSI

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

DrewmHolland

DrewmHolland

Proven Member
171
36
Apr 11, 2022
franklin, Tennessee
As far as I can tell my fuel pressure should adjust 1:1 with manifold pressure but I’m seeing 47psi no matter what so I’m guessing I’m missing a vacuum line to the FPR which I assume is by the fuel tank but I don’t know exactly where it is, can someone please post pictures of where the fuel pressure regulator is
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!

Similar threads

Eclipseturbo4
420A Base Fuel pressure
Replies
4
Views
2K
bullettdsm
bullettdsm
Eclipseturbo4
420A Where's the fuel pressure regulator
Replies
1
Views
3K
VelocitàPaola
VelocitàPaola
langelg6
420A 420a turbo. what ratio should my fmu be set and idle fuel pressure for 315cc injectors
Replies
12
Views
6K
Canadian_CD9A
Canadian_CD9A
420A Fuel management
Replies
1
Views
1K
dustyboner
dustyboner
420A Hahn fuel system
Replies
2
Views
3K
cyrez187
Boosted Fabrication
ECM Tuning
ExtremePSI
FIBA Motorsport
Fuel Injector Clinic
Innovation Products
Jacks Transmissions
JNZ Tuning
Kiggly Racing
Morrison Fabrications
Rix Racing
RockAuto
STM Tuned
Support Vendors who Support the DSM Community

Latest posts

Build Thread Updates

Vendor Updates

Latest Classifieds

Back
Top