Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Fuel Pressure Regulator

MPI Fuel System Pressure
(with vacuum applied to regulator) 21 kPa (31 psi)

MPI Fuel System Pressure
(without vacuum to pressure regulator) 269-276 kPa (39-41 psi)

MPI Fuel System Pressure Drop
(fuel pump not engaged) Up to 138 kPa (20 psi)