Few Codes and electrical problems

[dlsanders6oh]

Alright so the engine light came on the other day with these codes
2005 F-250 KR

p0046 : No Turbo Boost‎
&
p0673 : Glow plug #3 circuit failureCircuit

Not sure if there related or not but I've just replaced all cac boots & holes clamps checked for leaks coming off the turbo and around the lower side.

The corrector that goes to the VGT solenoid it dose not click in to place. I've pulled over many of times to check if its still in place and its seems fine.

While driving the truck the boost will work fine @ high speeds but at low it reads 0 or works when it wants to. (thinking the VGT solenoid is going out or the pigtail or the vanes are sticking) Just had the turbo cleaned 6 months ago.

Now to the electrical problems

TBC Fault -Check the fuses, Comes on all the time when i start the truck or randomly comes on while driving. The harness that connect to the trailer seems fine trailer lights work fine but the TBC will not work. & No blown fuses


Fog Lights -check volts on connector no volts. lights are brand new OEM & No blown fuses

[dlsanders6oh]

Took the truck to the shop and they fixed the glow plug and told me that my injectors were bad they shiped them to houston to be flow tested came back 4 are shot and other 4 bearly passed had them replace all 8 injectors to save the time and money of them doing the job all over again they could not find a problem with the P0046 code.

The fog lights had a grounding problem... Fixed for about 2 days
TBC - Works fine for them just says TBC fault on the display

3 days after I get the truck out and i'm out of town the P0046 code comes back and would lose boost randomly called the shop guy says bring it back in. Get back in town I dont clear the codes so he can see it, guy calls me back saying there's nothing wrong.

How? the hell can nothing be wrong when the engine light comes on you can see the code on the CTS and the truck is runing like A$$. So while its in there I Tell them to replace the VGT solenoid & pigtail