JBF150

Hey all. On a 2004 f150 5.4l can you easily remove the EGR without messing with the ECU? Or does that need to be flashed afterwards?

xdrockstar

Why would you want to? It's a lose , lose situation. Worse performance and more NOx emissions.

harley9703

No negative performance here, been deleted quite some time. I don't like the thought of hot *** exhaust gas being cycled back through the motor. Yes you have to have it turned off in a tune or it will throw a SES light.

JBF150

Thanks just what I thought.

obusnizzle

my friend at SCT sent me a guinea pig tune a while back for my tbird and actually pumped up the EGR to see what mileage would be like. I snag close to 20mpg in town and cut almost .2 off my quarter mile time.

hcbph

So long as you aren't running your engine too lean, or you could burn valves etc in it. If it doesn't do anything bad, sounds like it might have been running rich before.

obusnizzle

we played with my fuel trims. i have 24lb injectors and a lightning MAF. Ive been running the tune for about 4 years.