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

Operating the Fuel Pump/Injector Balance Test

Control of the fuel pump and injector is under the SPECIAL FUNCTION menu.
^ Once in SPECIAL FUNCTION, select Powertrain
^ Select FUEL DELIVERY
^ Then select desired function (fuel pump, injector balance, etc.)