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My truck has 110k miles, edge EZ, 4” exhaust, FASS lift pump, Suncoast triple disk, dynamic valvebody, and an Oregon fuel injection VP. The pump has around 20k miles on it never seen less than 14PSI at WOT, always with the FASS, and always had 2 stroke. It recently FEELS like I’m losing low end power. Very very little smoke ever no matter what tune the EZ is on. Just feels like lately I have to push the throttle a lot more to really get going but once it’s wound up then it seems fine. No CEL. New fuel filter. Also my fuel mileage sucks (250-300 miles/tank) Runs great otherwise. Could something be up or am I just losing my marbles?? 

Edited by skyhigh4by

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check your map sensor to ensure it is reading 0 at idle and increasing as you would expect.   This is a typical feeling when a map sensor starts to read low.

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10 minutes ago, Me78569 said:

check your map sensor to ensure it is reading 0 at idle and increasing as you would expect.   This is a typical feeling when a map sensor starts to read low.

Okay I was leaning towards MAP or injectors. I have access to an OTC genisys scanner. What numbers should I be seeing from it? I assume wat hung it while driving in various conditions? I had my scan gauge hooked up a while back and I think if I remember it was reading pretty close to atmospheric pressure at idle but would stop going up around 20 psi maybe? (Can’t remember exactly) 

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I unplugged the map sensor but left the factory plug connected to the EZ because I read a bunch of posts about the effect it should have. I noticed absolutely no change whatsoever. Power still feels flat and doesn’t even make the tiniest puff of smoke in any rpm/throttle position. Does this mean anything? 

 

I have ave also been suspecting possible boost leak but the whole zero smoke thing kind of debunks that theory does it not? 

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I will definitely check for Boost leaks just in case, I didn't think I had any myself until I did check it, boy was I wrong. Got new boots right away, the resealed couple of intake bolts and even ended up using RTV on compressor housing in my turbo. The turbo part you're probably fine, mine was just built so it's been a part and combined with mixed match parts. 

It's kind of does sound like a boost sensor but I don't know enough to tell you that it is.

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Could be the Edge EZ is having issues also. I would disconnect it and run a solo tank and if it changes. Also check error codes with it removed after a drive to see if the Edge EZ was masking.

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53 minutes ago, Mopar1973Man said:

Time to consider the Quadzilla.

It was next on the list after transmission which I just did. 

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On 1/11/2019 at 6:26 AM, Mopar1973Man said:

Time to consider the Quadzilla.

It was next on the list after transmission which I just did. 

 

UPDATE

ive been driving for a few days now with the edge disconnected. I notice no difference in the way it drives. Didn’t feel like any power was lost without it. No CEL but I haven’t had a chance to put the scanner on it yet. I also got stuff to rig up a boost leak test but haven’t had a chance to do that yet either 

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