Dodge Repair Questions? Ask a Mechanic for Answers ASAP
My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
If you have not had the EGR checked there were some issues with the EGR valve sticking causing this fault here needing replaced.I have also seen boost hoses at the cooler and leading from the cooler leak causing a boost fault.If these were or are checked and found o.k. let me now before rating my help here so we can continue.
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If there is an issue with the brake switch this can cause this issue here if the switch is sending a false signal that the brake has been pressed when it has not been.If you havent had the fault codes checked with a fully compatible scan tool that can plug in and communicate with all computers this should be done.If any codes are set the codes will help diagnose and locate the fault here.If you can get the codes read out and post them here this will help just let me know.
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I would have the EGR checked into to see if it is acting up when this issue occurs as well as the brake switch (which is probably o.k. since the doors are not closing properly).
I would also have the boost sensor signals checked for any issues with the sensor or wiring to the sensor and wheel speed sensor signals as sometimes this can cause a fault like this here if you can.If these are all o.k. let me know.
O.k.,unfortunately my info is not matching up to your model here for some reason.
I will open your question up for others here to see if someone else can assist further on this as there may be others here that may have more info on what to check or do with this issue.I hope you can get this resolved with ease.No need to reply to my last post here unless it is a last resort as it will keep your question locked to me and others will not be able to view it.If you feel you want to continue to work with me on this feel free to reply at any time but keep in mind in some cases it can be difficult to fully diagnose or help repair this without seeing your vehicle.
Hi there. Different expert here.
The key to turbo engagement on this MY Sprinter is a boost pressure vacuum solenoid that is controlled by the ECM using a pulse-width modulated signal or PWM. There are two essential tools used to diagnose this issue; one is a DRB-III or equivalent bi-directional scan tool capable of actuating the vacuum solenoid and displaying boost pressure PID, and the other a scope or very fast voltmeter capable of reading frequency (Hertz); the scan tool is used to command different vacuum settings and monitor the resulting boost pressures and the scope is used to confirm the PWM signals from the ECM.
Dealership techs usually do more than just try to retrieve codes when performing this type of diagnosis. When you state "it has been tested by the MB dealership", do you have a record of what they did? Any data you could share?
Looks like you don't have access to the tools you would need to perform the procedures that would allow us to diagnose this issue, so I'm afraid I won't be able to help you. I'll opt out so others may try. Please do not rate or reply until another expert responds or the site will cycle this back to me.