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

Sensor Inspection


Procedure

1. Test the Manifold Absolute Pressure (MAP) sensor output voltage at the MAP sensor connector terminal 2. With the ignition switch ON, and the engine OFF, output voltage should be 4 to 5 volts.

2. Test the MAP sensor output voltage at the MAP sensor connector terminal 2 at a hot, neutral idle speed condition. The voltage should drop to 1.5 to 2.1 volts.