mazda Workshop Repair Guides

Mazda Workshop Service and Repair Manuals

Emissions - Rough Idle/MIL ON/DTC's P0300/P0401|Page 1791 > < Emissions - Rough Idle/MIL ON/DTC's P0300/P0401|Page 1789
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EGR Valve: Testing and Inspection

Resistance Inspection

NOTE:  Perform the following test only when directed.

1. Disconnect the negative battery cable.

2. Inspect resistance of the EGR valve coils.

-

If not as specified, replace the EGR valve.

-

If as specified, inspect the vacuum hoses for improper routing, kinks or leakage, and carry out the "Circuit Open/Short Inspection" and repair
or replace the parts if necessary.

Circuit Open/Short Inspection

1. Remove the PCM.

2. Connect the SST (104 Pin Breakout Box) to the PCM as shown.
3. Tighten the connector attaching screw.

Tightening torque 
7.9 - 10.7 N.m {80 - 110 kgf.cm, 69.5 - 95.4 in.lbf}

Emissions - Rough Idle/MIL ON/DTC's P0300/P0401|Page 1791 > < Emissions - Rough Idle/MIL ON/DTC's P0300/P0401|Page 1789