Operation CHARM: Car repair manuals for everyone.
Home >> Oldsmobile >> 1998 >> Achieva L4-144 2.4L DOHC VIN T SFI >> Repair and Diagnosis >> Relays and Modules >> Relays and Modules - Powertrain Management >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Service and Repair >> PCM Re-Programming
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

PCM Re-Programming

The replacement PCM must be reprogrammed and the crankshaft position system variation procedure must be performed.

Refer to the latest Tech line information on PCM re-programming and CKP System Variation Learn Procedure for the Crankshaft Position System Variation Procedure.
pro multis · About Operation CHARM