Just did test...three blinks...pause then three blinks code 33 i'm assuming...checking code database...

 

I wonder if his might have the EGR passage clogged with carbon ....

 

Code 33: EGR valve opening not detected.

I bought this new less than 8 months ago. And pinging has been going on for longer than that...So i'm thinkin what mustang's thinkin...little or no vacuum. Any other possibilities

 

Check for broken vacuum lines. They get hard and brittle over time and break very easily.

 

On the selenoid for the EGR, there are two vacuum hoses that run out. A green one which i believe goes to EGR. Where does the black one go to? Does it go to the coffee canister? I will replace these two hoses tomorrow so any help will do. THanks a bunch

 

Musclestang, the cars did not use knock sensors, but the truck 5.0's always used a knock sensor, regardless of whether it was mass air or speed density.

Now what you can do is momentarily hook up manifold vacuum to the EGR valve to verify that the valve is actually opening. On my truck, the EGR likes to get stuck, and usually applying full manifold vacuum will pop it free. Then I just hook it up like normal again.

 

Your codes are 3-digit codes, not 2. So what you're reading as code 33 is more than likely code 111 (all clear).

Jason

 

KOER test codes that came out were 538, 536, and 632... Nothing to do with pinging...i'm clueless

 

Ok sorry, reset with battery uplugged...and i did not do the KOER test right with brake/switch/ps/goose(rev)

Only two codes showed up

225 Knock Sensor (KS) signal not sensed during dynamic response test.
167 TPS did not exceed 25% rotation during the Dynamic Response Test.

Could this be the pinging culprit?

 

Run the test again, this time stabbing the throttle a little harder. Then if you have the 225 again, you might have narrowed down your problem.

 

As this was the first time I had ever done the self tests...I did them wrong. After doing them right, my KOEO System Pass and KOER System Pass. I decided to look at vacuum hoses...And ended up replacing all of them since I had time to do so. My fuel pressure regulator hose than runs to intake had a hole in it. It runs a whole lot better.