i have replaced the vacuum lines and the egr valve position sensor but i am still getting the code that says "insufficient egr flow detected"(yes i cleared the codes) and the EGR valve still holds a vacuum so what could be wrong?

 

Did you clean out hole where the egr mounts? Most liley has lots of crabon build up. Coat hanger and some Carb cleaner works wonders. Also compressed air.

 

just get rid of it thats what i did! bad stuff if you ask me@!

 

yeah but right now i am getting 10 mpg and i got 12-13 when it was working properly so i definately would like to have it

 

personally i get more mpg than before with more power AND i put on some new highway tires

 

okay so today i tried adjusting the spacing between the position sensor and egr valve and the annoying *** check engine light still comes on! what is wrong?!

 

I just noticed that mine is still on, but plugged up. That will be coming off soon.

 

gasp! well you know what im saying? the egr vavle is just not worth it. It stands for Exhaust Gas Return. Its supposed to help you out but its soooo worthless man. Just get rid of it you wont regret it.

 

Actually it's exhaust gas recirculation.
When it's working properly, it only works when you're in a "warm cruise" operating strategy. It imprves fuel economy by introducing waste gasses which occupy cylinder volume replacing air but do not reguire the addition of fuel; it also reduces combustion temperatures and therefore reduces NOX emissions. It has no effect whatsoever on performance because it doesn't operate when the engine is at WOT.

 

okay so i am going to seafoam my truck and get rid of carbon build up, what vacuum line would i pour it into on a 95 w/ a 302?

 

Brake booster hose. Go SLOW.

 

brake booster hose and the PCV hose. the brake booster hose doesnt feed all cylinders. pour have in one hose, and half in the other hose. when its all poured in, turn the truck off and let it sit there for 5-10 minutes. then crank it up and blow it out. letting it sit while the engine is off lets the sea foam sit around the valves and eat up any extra carbon.

 

okay so today i even replaced the EVP(EGR valve position sensor) and the light came back on, i spaced it out a little with newer gaskets and it still came on, whats the problem?!

 

seafoam didnt work, any more suggestions? cleaned out egr valve with carb cleaner as well, but did not touch the pipe going to it, should i clean that out nexT?

 

Did you also replace the vacuum lines that run behind the intake manifold? There could be a split in the lines back there somewhere.