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turbo problems!

1K views 6 replies 2 participants last post by  4506.0 
#1 ·
2004 f250 6.0 powerstroke
ok guys this truck has been a nightmare heres my problem the truck when i first put the programmer on (sct tuner) it was balls out fast and powerful but now it will not build boost at all the turbo wistles a lil but it does not get down anymore i have checked the intercooler boots and the up pipe for leakes, heres one thing i did notice, on the pigtail that connects to the turbo the wire is showing really bad and i was jw if that was bad would it make it not build boost? thanks guys
 
#2 ·
went ahead and ordered a new main wiring harness
last week i ordered a new injector harness so ill put both on and see what it does, hopefully itll fix the boost and the cutting off issue :/
 
#4 ·
have alot of codes
exhaust back pressure sensor
map/baro sensor
egr sensor circut 2
crankshaft sensor
camshaft sensor
i cleaned the exhasut pressure sensor and replaced the rest but still throws them, which is why i think the harness since it connects to the sensors?
 
#6 ·
yes, would that pigtail on the vgt solenoid throw up the map/baro sensor? the wires on both the main harness and the injector harness are frayed one spot is real bad on the driver side intake manifold?
 
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