Bac Valve; Isc Valve - Mazda 626 MX-6 Workshop Manual

4A
ISC SYSTEM
Gasket
Apply sealant on both sides
4A-42

BAC Valve

Air valve
. Remove the BAC valve from the throttle body.
1
2. Blow air throgh the valve from port A and check
that air comes out of port B when the BAC valve
is cold.
3. If not correct, replace the BAC valve.
Note
Refer to " Installation" on this page for the
BAC valve installation.
86U04A-063

ISC valve

1. Disconnect the ISC valve connector.
2. Connect an ohmmeter to the terminals of the ISC
valve.
3. Check the resistance.
Resistance (normal operating temperature):
6.3—9.9 Q
4. If not correct, replace the BAC valve.
86U04A-064
Removal
1. Remove the screws.
2. Remove the BAC valve from the throttle body.
69G04C-070
Installation
Caution
Use a new gasket.
1 . Remove any dirt or old sealant from the contact
surfaces.
2. Apply sealant to both sides of the gasket.
3. Tighten the screws.
69G04C-071