Hi, i knew it was just a matter of time, i been searching/reading/scanning posts and wanted to document my journey and notes below. This issue can be a real bitch to resolve especially with no OEM scan tool.
In reality though i myself probably won't proceed very deep into this, might bring it to my local shop(they have a good scanner for these sprinter) and maybe attempt the relearn for the MAF, just don't feel like putting a bunch more money into this thing.
P0100: Mass or volume air flow "A" circuit
P0101 Mass or volume air flow "A" circuit range performance
P0108 Manifold absolute pressure/ barometric pressure circuit high
P0110 Intake air temperature sensor 1 circuit
My generic readings
MAF 2.63 lb/min
MAP 13.6 PSI at idel and 14.2 at 2000 RPM
BARO 10 psi
EGR % stuck at 5%
AAT ambient air temp stuck at 57F
ECT 109F
FRP 3761 psi at idle
This issue happened sudden and with out warning
Not in full limp mode but can drive forward but there is a lack of power, excess sweet smell from exhaust
van does start ok but i can feel and hear extra noise and vibration from engine and exhaust (not normal) My best way to describe it is the van acts like its in regen mode.
I don't' have a nice or expensive scan tool.
New OEM air filter installed
No obvious boost hoses detached or split
No obvious splits on the inter cooler ends
Swapped in a spare cleaned EGR valve i had no change
Linkage behind turbo does move up and down
Swirl valve linkage left and right does move forward and back from what i can see
Turbo inlet gasket from air box is good
New MAF installed figured it was fine but tried one
There is what seems like normal air flow out the tail pipe so DPF and CAT should NOT be plugged solid
Both cats are running at a higher temp than normal
EGR% stuck at 5%
Did a battery disconnect no changes
Cleared codes
Drove van for a while codes still linger
Possible plugged EGR cooler?
Black oily mess drivers side middle to rear of manifold oil cooler leak?
If i hold revs at 2500 rpm i can hear what sounds like a air leak/hiss but could be my imagination thinking turbo boost o rings A 019 997 75 45
From a post There are also micro switches to tell the ECU when the valves are in a closed position and if the ECU is commanding the actuator to open the valves (move the linkages) but does not observe a change in state of the limit switches then it knows something is up and sets a code.
Thinking with the oily mess with mine something could be damaged gummed up.
From doing a search this is issue has occurred with others but not a whole lot of follow ups.
Some interesting things: inlet hose to turbo https://sprinter-source.com/forum/showpost.php?p=726898&postcount=75
I checked mine closer again no splits or cracks
O rings https://sprinter-source.com/forum/showthread.php?t=12494&highlight=p0101
Description https://sprinter-source.com/forum/showpost.php?p=380276&postcount=18
Good post https://sprinter-source.com/forum/showpost.php?p=595232&postcount=3
Interesting thread https://sprinter-source.com/forum/showthread.php?t=60215&highlight=p0101
Good Thread post 13 https://sprinter-source.com/forum/showthread.php?t=67246&highlight=p0101
"it seems like adapting the MAF was the likely solution... but adapting the DPF probably didn't hurt"
https://sprinter-source.com/forum/showthread.php?t=35726 post #27
from a post "I told the shop these things and the next thing they checked was the wire going from the ECU to the MAF. I was told it can be common for one of the contacts to get corroded at the ECU end, which shorts out the MAF and ruins it"
The MAF needs an adaptation when you put in a new one fyi.
differential pressure switch is relatively cheap and it has undergone several changes (updates and revisions) through the generations
A pic of my oily mess
In reality though i myself probably won't proceed very deep into this, might bring it to my local shop(they have a good scanner for these sprinter) and maybe attempt the relearn for the MAF, just don't feel like putting a bunch more money into this thing.
P0100: Mass or volume air flow "A" circuit
P0101 Mass or volume air flow "A" circuit range performance
P0108 Manifold absolute pressure/ barometric pressure circuit high
P0110 Intake air temperature sensor 1 circuit
My generic readings
MAF 2.63 lb/min
MAP 13.6 PSI at idel and 14.2 at 2000 RPM
BARO 10 psi
EGR % stuck at 5%
AAT ambient air temp stuck at 57F
ECT 109F
FRP 3761 psi at idle
This issue happened sudden and with out warning
Not in full limp mode but can drive forward but there is a lack of power, excess sweet smell from exhaust
van does start ok but i can feel and hear extra noise and vibration from engine and exhaust (not normal) My best way to describe it is the van acts like its in regen mode.
I don't' have a nice or expensive scan tool.
New OEM air filter installed
No obvious boost hoses detached or split
No obvious splits on the inter cooler ends
Swapped in a spare cleaned EGR valve i had no change
Linkage behind turbo does move up and down
Swirl valve linkage left and right does move forward and back from what i can see
Turbo inlet gasket from air box is good
New MAF installed figured it was fine but tried one
There is what seems like normal air flow out the tail pipe so DPF and CAT should NOT be plugged solid
Both cats are running at a higher temp than normal
EGR% stuck at 5%
Did a battery disconnect no changes
Cleared codes
Drove van for a while codes still linger
Possible plugged EGR cooler?
Black oily mess drivers side middle to rear of manifold oil cooler leak?
If i hold revs at 2500 rpm i can hear what sounds like a air leak/hiss but could be my imagination thinking turbo boost o rings A 019 997 75 45
From a post There are also micro switches to tell the ECU when the valves are in a closed position and if the ECU is commanding the actuator to open the valves (move the linkages) but does not observe a change in state of the limit switches then it knows something is up and sets a code.
Thinking with the oily mess with mine something could be damaged gummed up.
From doing a search this is issue has occurred with others but not a whole lot of follow ups.
Some interesting things: inlet hose to turbo https://sprinter-source.com/forum/showpost.php?p=726898&postcount=75
I checked mine closer again no splits or cracks
O rings https://sprinter-source.com/forum/showthread.php?t=12494&highlight=p0101
Description https://sprinter-source.com/forum/showpost.php?p=380276&postcount=18
Good post https://sprinter-source.com/forum/showpost.php?p=595232&postcount=3
Interesting thread https://sprinter-source.com/forum/showthread.php?t=60215&highlight=p0101
Good Thread post 13 https://sprinter-source.com/forum/showthread.php?t=67246&highlight=p0101
"it seems like adapting the MAF was the likely solution... but adapting the DPF probably didn't hurt"
https://sprinter-source.com/forum/showthread.php?t=35726 post #27
from a post "I told the shop these things and the next thing they checked was the wire going from the ECU to the MAF. I was told it can be common for one of the contacts to get corroded at the ECU end, which shorts out the MAF and ruins it"
The MAF needs an adaptation when you put in a new one fyi.
differential pressure switch is relatively cheap and it has undergone several changes (updates and revisions) through the generations
A pic of my oily mess
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