Vgt duty cycle messed up/ no whistle. HELP!!! - Ford Powerstroke Diesel Forum
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Old 08-15-2013, 07:21 AM
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Vgt duty cycle messed up/ no whistle. HELP!!!

Ok so I have a 05 6.0. My vgt duty cycle is at 45.0% at idle and drops to about 24% wot. I have an exhaust back pressure circuit low and circuit high codes. So I replaces that with no change. Next I changed the map sensor because these 2 sensors tell the computer the vein position (thought mabe that would help). Still no change. Cleans the unison ring and veins last night, put a new vgt solenoid in and also the plug. No change. Wtf. I have a powermax in this and only pushing 28psi with a 100 horse tune in the edge. Does anyone have ideas.
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Old 09-21-2013, 08:08 AM
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I have the same problem...you figure out what it was?
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Old 02-08-2015, 02:03 PM
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same problem now did anyone figure it out lol
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Old 02-08-2015, 03:34 PM
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Did you clean or replace your ebp sensor? Did you clean the tube going to the sensor?
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Old 02-09-2015, 03:27 AM
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yeah it was clogged cleared it up a little but doing that cleaning map nipple replaced tube cleaned turbo ordered a new ebp sensor cleaned vgt solonoid gonna pull the ait out and clean it today also gets better little by little egt wise but still no whistle until high idle also running a powermax and only 28psi a wot with a gearhead extreme tune
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