j_martell Posted January 29, 2014 Share Posted January 29, 2014 Truck hasn't moved in a few days, so I went out and let it run a little today, and the CEL was on when I shut it down. Used the self diagnostics and snapped a pic, anyone know what it means. Lol Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/34453-mp7-cel/ Share on other sites More sharing options...
Challenger Posted January 30, 2014 Share Posted January 30, 2014 3675 Engine Turbocharger Compressor Bypass Valve Position Mid 128 PPID FMI 7On your turbo discharge line there is a valve that opens and allows air to flow back into the intake side of the turbo. Its controlled by the DRV valve on the left side of the engine. Its a small square solenoid near the Engine ECU. Your DRV solenoid could be bad.Or maybe its acting up just because its cold out. Running the truck with this code will not cause any damage. Quote Link to comment https://www.bigmacktrucks.com/topic/34453-mp7-cel/#findComment-229468 Share on other sites More sharing options...
bbigrig Posted January 30, 2014 Share Posted January 30, 2014 Because its cold out is possible up here in J Martell's and my neck of the woods these days......-30C (-22F) with the windchill for the last month or so.... Quote Link to comment https://www.bigmacktrucks.com/topic/34453-mp7-cel/#findComment-229481 Share on other sites More sharing options...
j_martell Posted January 30, 2014 Author Share Posted January 30, 2014 Thanks guys. Supposed to warm up a little today. Good to know no damage will result. Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/34453-mp7-cel/#findComment-229507 Share on other sites More sharing options...
j_martell Posted February 4, 2014 Author Share Posted February 4, 2014 Okay.....shame on me, haven't got it in yet. Tomorrow for sure, only one bin to get at. The valve is only a bypass? Should I be seeing a drop in boost, because there isn't any. Is it part of the boost controlling system, or is that accomplished strictly through the variable vanes.....Sorry to pester, but I gotta know.... Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/34453-mp7-cel/#findComment-230348 Share on other sites More sharing options...
Challenger Posted February 4, 2014 Share Posted February 4, 2014 You wont see a loss of boost, more then likely the solenoid wont open the valve. Emissions related. Quote Link to comment https://www.bigmacktrucks.com/topic/34453-mp7-cel/#findComment-230518 Share on other sites More sharing options...
j_martell Posted February 24, 2014 Author Share Posted February 24, 2014 Here we go again.....Thanks in advance. Jordan Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/34453-mp7-cel/#findComment-234371 Share on other sites More sharing options...
Challenger Posted February 25, 2014 Share Posted February 25, 2014 5392 FMI 31 Aftertreatment DEF dosing valve loss of prime.Basically it means your doser loss its prime. Did the truck run out of DEF fluid? If the truck runs out of DEF fluid it can kick this code.If it didnt run out of def fluid it will need to go to a dealer. Could be a plugged line or bad pump. We have seen bad DEF pumps. Quote Link to comment https://www.bigmacktrucks.com/topic/34453-mp7-cel/#findComment-234465 Share on other sites More sharing options...
staxx Posted February 25, 2014 Share Posted February 25, 2014 Have seen this a lot lately the def seems to be freezing in the lines and at dose valve causing issues. Quote Link to comment https://www.bigmacktrucks.com/topic/34453-mp7-cel/#findComment-234470 Share on other sites More sharing options...
j_martell Posted February 25, 2014 Author Share Posted February 25, 2014 Book says it's supposed to pump back to the tank on ignition off.hasnt run dry, But, we used to store def outside, and last week I dumped most of a jug in before I noticed the last little bit was frozen. Potential cause??? Will it go to derate before any serious damage? Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/34453-mp7-cel/#findComment-234489 Share on other sites More sharing options...
staxx Posted February 25, 2014 Share Posted February 25, 2014 Hard to say , if the problem is not there anymore the system will moniter the issue for a coulpe drive cycles and clear itself I, if not it will derate. Quote Link to comment https://www.bigmacktrucks.com/topic/34453-mp7-cel/#findComment-234493 Share on other sites More sharing options...
j_martell Posted February 25, 2014 Author Share Posted February 25, 2014 K. Thanks fellas Quote Lack of planning on your part does not constitute an emergency on my part.... Link to comment https://www.bigmacktrucks.com/topic/34453-mp7-cel/#findComment-234511 Share on other sites More sharing options...
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