Briance
Member
I have pasted a response in other threads. I haven't seen my exact situation, so I thought to create a new post.
Hoping to get any of you knowledgeable folks to reply. I have a story. Ill attempt to make it succinct.
I bought a 2010 sprinter 2500 170 1.5 weeks ago, and drove back to California from Colorado.
120 miles into my drive home, Check Engine Light and 100 miles after that, DEF fluid low.
At NAPA in MOAB-Pulled P2BAA (NOX sensor) and UO1OE (lost communication with redundant control module)
Got the 9 starts message took me 2 days to make it home, and still had 9 starts.
After a week, its down to a few more and at the local shop in Central California.
Code was specific to upper NOX and it was replaced with newest version (assume 5)--this was after the old rusted one had to be cut out at muffler shop and new coupler with threaded insert welded in. (UGH) they saved me some money rather than replacing the entire assembly.
Still getting UO1OE and 2 starts left. Mechanic says a new $2000.00 ECU is needed. (he thinks) I am not convinced. I want to swap the other 2010 sensor (what version is that? 1 or 2?) he has claimed in the past he has made only one work, but i think the generations are too different. As an aside, he admits to only working on a few Sprinters.
I would like to check out the fuses first and at least swap downstream NOX sensor to newest versions (NOX sensors were original to car).
This originally was a passenger 2500 converted to a camper.
Am i correct to assume that I could still pull the UO1OE code if the downstream NOX sensor is the oldest version trying to communicate with the newest one? (for reference the shop pays for Mercedes software access. They couldn't get the ECU to communicate even after a number of hours on the computer.
Any help is appreciated, thanks!
Hoping to get any of you knowledgeable folks to reply. I have a story. Ill attempt to make it succinct.
I bought a 2010 sprinter 2500 170 1.5 weeks ago, and drove back to California from Colorado.
120 miles into my drive home, Check Engine Light and 100 miles after that, DEF fluid low.
At NAPA in MOAB-Pulled P2BAA (NOX sensor) and UO1OE (lost communication with redundant control module)
Got the 9 starts message took me 2 days to make it home, and still had 9 starts.
After a week, its down to a few more and at the local shop in Central California.
Code was specific to upper NOX and it was replaced with newest version (assume 5)--this was after the old rusted one had to be cut out at muffler shop and new coupler with threaded insert welded in. (UGH) they saved me some money rather than replacing the entire assembly.
Still getting UO1OE and 2 starts left. Mechanic says a new $2000.00 ECU is needed. (he thinks) I am not convinced. I want to swap the other 2010 sensor (what version is that? 1 or 2?) he has claimed in the past he has made only one work, but i think the generations are too different. As an aside, he admits to only working on a few Sprinters.
I would like to check out the fuses first and at least swap downstream NOX sensor to newest versions (NOX sensors were original to car).
This originally was a passenger 2500 converted to a camper.
Am i correct to assume that I could still pull the UO1OE code if the downstream NOX sensor is the oldest version trying to communicate with the newest one? (for reference the shop pays for Mercedes software access. They couldn't get the ECU to communicate even after a number of hours on the computer.
Any help is appreciated, thanks!