Operation CHARM: Car repair manuals for everyone.
Home >> Chevrolet >> 2001 >> Metro L4-079 1.3L VIN 2 MFI >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Engine Speed
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

Engine Speed

The scan tool range is 0-10,000 RPM: The PCM computes engine speed from ignition reference pulses. The Engine Speed parameter should remain close to the Desired Idle Speed parameter when the engine is warm and idling.
pro multis · About Operation CHARM