i was reading that this might get clogged and have an affect on mpg and performance. i was wondering what the egr does and how hard is it to take off and check it out.

 

I have learned alot about my Toyota since joining Yotatech but I would like to know also about the EGR valve. Also see people talking about the knock sensor. What are these things? I mean my truck runs great so I doubt it's an issue. It also looked fine when I got it but I still changed alot of parts...hehehe

 

The EGR's sole purpose is to re-route exhaust gases into the intake stream to lower compustion tempature. The lower tempature will lower the NOx gas in the exhaust. You will loose power when the EGR valve is opened. Its not a performance item.

The Knock Sensor's purpose is to detect "Ping". This is always a 7k hertz range frequency and the sensor is designed to detect it. When It detects this frequency, the timing will retard.

Dont force me to bust out with anything more technical, or Ill open up a paypal account.

Jay

 

Jay..i think you are losing it on us man..

 

Okay thanks Jay my next question would be is it very obvious if either of these parts is failing or worn?

 

Do you have to take your car for an emissions inspection in UK? Did it pass? If so, your EGR is working.


Is your check engine light on? If not, your Knock sensor is fine.

Jay

 

thanks Jay!! i know you are busy answering all of our questions and opening that paypall account..but did you get around to Tip #2?

 

lol Jay's a good guy, but I think after a bit he's going to change his Master Diagnostic Technician avatar to "Hermit at large" with a picture of a fence, chain & padlock.

Al

 

I made progress, but I didnt get it finished yet. I feel like a jackass.

I was having trouble capturing the pictures I need. But Ill keep working on it.

Jay

 

why do you feel like a jackass? because you had troubles with the pics or what?

 

Because I said Id have it done by Friday.

 

Jay..you said fridayish. you get done when you get done!! dont worry about it!!

 

Aight. Thanks.


Jay

 

just hurry up though huh? hehe...just kidding

 

Jay

 

:eek: