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09-09-2010, 05:20 AM
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Throttle Valve
I've been doing some research but haven't been able to find an answer to this question:
If I remove the butterfly itself and leave everything else in the TV will I still get a CEL? If so can anybody tell me why? Is there a sensor that detects TV position like there is for EGR position? Thanks.
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2008 Dodge Ram 3500 SLT QCLB SRW 4X4 6.7L Cummins Turbo Diesel 6 Spd Manual 
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09-09-2010, 08:59 AM
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No. If you remove the butterfly, no cel no errors. There is no sensor that detects an actual device. The sensor is a positional one inside the electronic of the TV. In pre-2008 models, this was a requirement in order to disconnect the EGR. The valve was normally closed so disconnecting the EGR caused a bad restriction since the valve would not open. Later in 2008 they made it normally open and close when EGR was activated.
Rule of thumb, if a motorized device (actual motor or solenoid type) that more than 2 wire, then there is a built in position sensor and it will report back to the ECU. Hope that helps.
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'08 3500 HD Dually, SLT, 6.7L, 6 SPD Auto, 4.10 Axles, 4X4, Bighorn Edition Installed: CAI, HitchCrafter Air 5th Wheel, Spyntec Dually Hubs, ATS Co-Pilot, Smarty, Edge Insight, 19.5 Wheels, FS-2500 ByPass Filter, 4 Fuel Filter Setup, BodyGuard Triple Side Steps
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09-10-2010, 01:09 AM
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Thanks morbius. I was hoping so. I want to block the EGR but leave all the electonics and manifolds intact so I don't get all that crap back into the intake and avoid cel at the same time.
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2008 Dodge Ram 3500 SLT QCLB SRW 4X4 6.7L Cummins Turbo Diesel 6 Spd Manual
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09-10-2010, 10:30 AM
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What I would first before going that whole route is to simply unplug the egr and see how the truck runs with your ECU. I see you have a 2008, so TV should be normally open. If your DPF regen works as it should for many miles, then putting a block plate at the source of the EGR would do the trick (easy to install and remove when needed). No need for a lot of extra work
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'08 3500 HD Dually, SLT, 6.7L, 6 SPD Auto, 4.10 Axles, 4X4, Bighorn Edition Installed: CAI, HitchCrafter Air 5th Wheel, Spyntec Dually Hubs, ATS Co-Pilot, Smarty, Edge Insight, 19.5 Wheels, FS-2500 ByPass Filter, 4 Fuel Filter Setup, BodyGuard Triple Side Steps
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09-10-2010, 01:58 PM
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Thanks for the infor. I recently unplugged the EGR, but I was hoping to block it and then plug it back in while eliminating the butterfly to get rid of the CEL. I could live with it, just trying to see if I can fool it.
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2008 Dodge Ram 3500 SLT QCLB SRW 4X4 6.7L Cummins Turbo Diesel 6 Spd Manual
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12-08-2010, 02:42 PM
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I have mine removed, but I'm using the H&S tuner. You can remove all the emission equipment and leave it unplugged. If you don't have a programmer, you have to leave everything plugged in.
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-brand spanky new white 02 sport QC, SB, 3/4 4X4 DDP stg 3 sticks, GT3782R -soon to nuke down, black 2010 3500 Laramie CCSB, H&S Blackmaxx, DPF & EGR delete -grey 02 Laramie LB, 3/4 4X4, edge comp, 95 fass
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