I have had a 0302 code for a while now and supposidly the dealer is saying I need a new egr valve. Anyways I was getting my jack out of the truck when i reached down and noticed a few tubes that were down there...unconnected!! One tube was metal while the other was plastic and clear. I feel a hole down there and I think it leads to the exhust....this might be where the leak is and what is causing the 0302...i need help from anyone....please go to ur cars and see if you can feel the tube and what it is....i am having trouble getting it in the hole but i want to see what this is before i do anything...thanks!

 

0302
Diagnostic Trouble code 0302 points to a problem with the Exhaust Gas Recirculation system. The malfunction is detected 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

 

I know that info.......

 

I got it to come out...if you look underneath your passenger trunk like near the muffler there is a small rubber hole where this tubing comes out of....take a look....what is the tubing for?

 

OMFG.....of course....I bet this tubing is when water gets in the sunroof and other areas this is where it comes out....DAMNIT!!!! THat means it has been coming out in my truck for GOD knows how long -_-

I think.....if this is actually what it is....that it would have drained anyways or just evaporated in the padded area..................this is interesting

 

There are two tubes down there:

1. From the sunroof drains
2. From the antenna assembly drain

These two tubes connect at a T and then pop out the hole in the bottom of the car and drain out.