Defueling
 

i have a 94 chevy 2500 hd 6.5 td and am having trouble with it defueling. :argh i have had the wastegate wired closed and i couldnt tell much of a difference, i have cleaned the intake air temp sensor to no avail, but i did clean the boost sensor and it helped a lot but it is still defueling. any help will greatly be appreciated. thanks

do you still have the waste gate wired shut? If it gets over 14 or 15 psi it will defuel.

not currently but the solenoid that controlls the wastegate actuater is making a clicking noise

Wish it was guaged out right now. I think it might be holding the waste gate shut I would unhook it and see if it still defuels. If it still does my guess would be it is the boost sensor. And if it doesn't then we got to figure out why the turbo is not opening.

ok thanks for all the help i will try to keep this thread updated throught all the stuff i try to find my problem

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and what are your thoughts on a 4 inch straight piped Warpspeed exhaust

I am thinking of doing it myself to my 98. I have a straight 3" pipe on my 94 and 95 and that was a big improvement over stock but I plan on turning the 98 up some to pull my camper and figured I better go to 4". I haven't heard any with warpspeed in real life but the one I heard on you tube sounded the best. It sounded more like a tubo diesel than a big block gas like most of them make it sound. Let me now if you do it how you like the warpspeed.

ok i sure will you can get a 80 horse ecm mounted chip but you have to have a 4" exhaust im not sure if you have heard of it or not but i can definately see that playing a big role in my truck in the future but i will probabally make a thread about all i do to my truck so keep a eye out later on and tell me if a ma doing anything wrong you seem to have some knowledge in the 6.5 detroits

im ordering my 4 inch warpspeed exhaust tommorow. unwire that wategaste and when you get a upgraded ecm stay away from ss diesel and go with heath, kennedy, or westers garage.

Yea that was part of my plan for now with the truck. 80 horse ecm, mechanical waste gate, water mist injection, 4 inch exhaust and still debating a fluid damper just to help prevent crank breakage but not sure yet. Then building a 18 to 1 monster for later aint it funny started out as a budget truck $1500 tops now its got a build budget thats higher than the coast of a new truck. Keep us posted on how it goes and if I do mine first I will let you know.

whoses chips are you guys getting?