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| 1999 to 2003 7.3L Power Stroke Diesel 7.3L Power Stroke Diesel equipped Super Duty and Excursion. |
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#1
Mon, September 19th, 2011, 11:30 AM
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Removed the red line from wastegate solenoid
With my low boost numbers, I tried running the truck without the red line plugged in. I just pulled it off and crimped it in place with a zip tie. It now holds higher boost than usual while accelerating but I'm still only getting 21psi. So still hunting that problem. My question is, is there any harm keeping the red line unplugged? I've heard some peolpe saying they lost mpg, but I'm not sure if that actual hand figure of the over-head display?
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01 F350 7.3 4x4 CC SRW/3.73/315-75-16/Aeroforce Interceptor/BD Thruster II/ Bellowed Up-Pipes/4" turbo back exhaust/CCV Mod/DIY 6637/FPR Shimmed to 65 PSI/TS chip reburned with PHP tunes (Stock, 40T WITH Whsiper tune, 80DD, 100R, 140Ex, 140SS)/Replaced and Cleaned EBPS & Tube 4-6-12/Zoodad mod/Recon smoked cab lights/MM Hubs/Cowl Hood/HPx 
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#3
Mon, September 19th, 2011, 01:17 PM
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Quote:
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01 F350 7.3 4x4 CC SRW/3.73/315-75-16/Aeroforce Interceptor/BD Thruster II/ Bellowed Up-Pipes/4" turbo back exhaust/CCV Mod/DIY 6637/FPR Shimmed to 65 PSI/TS chip reburned with PHP tunes (Stock, 40T WITH Whsiper tune, 80DD, 100R, 140Ex, 140SS)/Replaced and Cleaned EBPS & Tube 4-6-12/Zoodad mod/Recon smoked cab lights/MM Hubs/Cowl Hood/HPx
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#4
Mon, September 19th, 2011, 01:38 PM
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Quote:
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#5
Mon, September 19th, 2011, 04:24 PM
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Well, if I'm understanding the operation of the wastegate solenoid,
 .... when boost gets so high, the PCM sends pressure through the red line to the waste gate solenoid pushing on the backside of the spring...which allows the wastegate to open. Taking the red line off makes the wastegate open just by drive pressure, without assistance of the PCM. Thats what I worked out in my head from a little reading and looking at the system. So someone please correct me if I'm wrong.
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01 F350 7.3 4x4 CC SRW/3.73/315-75-16/Aeroforce Interceptor/BD Thruster II/ Bellowed Up-Pipes/4" turbo back exhaust/CCV Mod/DIY 6637/FPR Shimmed to 65 PSI/TS chip reburned with PHP tunes (Stock, 40T WITH Whsiper tune, 80DD, 100R, 140Ex, 140SS)/Replaced and Cleaned EBPS & Tube 4-6-12/Zoodad mod/Recon smoked cab lights/MM Hubs/Cowl Hood/HPx
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#6
Mon, September 19th, 2011, 04:31 PM
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I just talked to cody, I think you are basically correct. I have a general understanding now, but not enough to explain it to anyone lol
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