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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.
In some cases this issue here can be due to a restricted exhaust component.I have seen restricted diesel exhaust filters or restricted catalytic converters or mufflers cause this fault here with the throttle limit as well as no power and smell you see.If you have not had the exhaust checked/tested at all this needs done to see if any exhaust component is found to be at fault needing replaced.
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