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)

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SUB-EGR Valve Checking





1. While opening the Main Throttle lever by hand, observe the Sub-EGR Valve for smooth movement (Figure 19).

2. If the Sub-EGR Valve is stuck or if it does not open smoothly, service the Sub-EGR valve as described below.

3. If the Sub-EGR Valve operates correctly, proceed to Jet Mixture Solenoid Valve Replacement procedure shown in this bulletin.