Hi -

I get this code intermittently. Does it have anything to do with my new mod of cold air intake? In some of my searches it was suggested to clean my IACV.

Any ideas?

Thanks,
Mo

 

DTC 0302

Diagnostic Trouble Code 0302 points to a problem with the Exhaust Gas Recirculation system.

The malfunction isdetected by the Engine Control Module when no EGR flow is detected under conditions which call for EGR.


Possible causes include:
- The electrical harness or connectors (valve circuit open or shorted)
- The EGR valve is stuck closed
- Weak or dead battery
- The EGR passage is clogged
- Faulty EGR temperature sensor circuit
- A leak somewhere in the exhaust system

The EGR Volume Control Valve may be tested with an ohmmeter. Disconnect the electrical connector. Looking at
the connector half which is attached to the EGRVCV with the latch at the 12 o'clock position you will see two
rows of three terminals. The top row is numbered 1-3, right to left. The bottom row is numbered 4-6, right to
left. Measure the resistance between these terminal pairs:
2 1
2 3
5 4
5 6
... all resistance values should be 20.9-23.1 ohms at 68 degrees F.

Reconnect the EGRVCV connector halves. Turn the ignition switch ON OFF repeatedly. Verify that the EGRVCV
shaft moves smoothly forward backward according to the ignition switch position.

The Exhaust Gas Temperature Sensor may be tested with an ohmmeter. The specifications are ...
- at 32 degrees F, 0.68-1.11 Megohms
- at 122 degrees F, 0.09-0.12 Megohms
- at 212 degrees F, 0.017-0.024 Megohms

 

Jamsan:

Thanks!

Mohmd.