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Tssting
1. Check the IAB control valve shaft tor binding or sticking.
2.
Check the IAB control valve for smooth movement.
3. With the engine at idle, check that @ of the IAB control valve is in close contact with the stop when vacuum hose is
disconnected.
With the engine at idle. check that @ of the IAB control valve is in close contact with the full-close screw when the
vacuum hose is connected.
lf any tault is found, clean the linkage 8nd shafts with carburetor cleaner. lf the problem still exists after cleaning, dis-
assemble the intake manifold and check the IAB valve body assembly.
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Table of Contents
Troubleshooting
