The v6 soot chucker is prone to split intakes and split throttle bodies, due to a combination of poor design and poor manufacture by the part manufacturers.
Hopefully with a quick read of this, you can capture these and get them replaced before you suffer Restricted Performance!
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The fault code will be P006A
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Essentially, the code means that the air going through the air filters (and MAFs) is not the expected amount that is detected by the MAP sensor. In both the common x351 diesel faults, this is due to splits in the plastic parts of the intake when under boost, causing a loss of boost.
(worth noting, other intake faults can also cause this, though less common on our cars - holed intercooler, burst intake hoses or hoses blown off, and so on, check these if you have a P006A and its not the 2 issues in this thread)
Throttle Body
The rear Y section is laser welded to the main body, and this weld fails, which given the crap design, is to be expected.
Remove the engine cover, and inspect the throttle body assembly, initially looking for telltale soot/oil marks around the seem, usually underneath, but also getting an assistant to repeatedly rev up the engine quickly. You can visibly see the 2 parts separating as the boost builds - it can be quite subtle, as can be seen from this video (although you can just hear the boost escape:
Intake Manifolds
These tend to split above the middle cylinder and under the rubber sound deadening around the injectors.
Best way is to visually check for oily/sooty telltales blowing up from this area towards the middle of the V - engine cover needs to be removed. In this example, I've wiped that area with a Grimex (you can see the "wet" area from the grimex just to the right of said grimex, and under the pipes and cables, and the state of the grimex. Note the electrical connector on the left looks like its had oil/soot blown on it. If this hadn't failed, it would be clean, maybe just a small amount of dust etc
![Image]()
Also, check the foam on the underside of the engine cover for oily/sooty telltales, circled in red
![Image]()
And some pictures of a split intake manifold - always seems to be the middle inboard inlet that goes:
![Image]()
Close up:
![Image]()
Hopefully with a quick read of this, you can capture these and get them replaced before you suffer Restricted Performance!
The fault code will be P006A
Essentially, the code means that the air going through the air filters (and MAFs) is not the expected amount that is detected by the MAP sensor. In both the common x351 diesel faults, this is due to splits in the plastic parts of the intake when under boost, causing a loss of boost.
(worth noting, other intake faults can also cause this, though less common on our cars - holed intercooler, burst intake hoses or hoses blown off, and so on, check these if you have a P006A and its not the 2 issues in this thread)
Throttle Body
The rear Y section is laser welded to the main body, and this weld fails, which given the crap design, is to be expected.
Remove the engine cover, and inspect the throttle body assembly, initially looking for telltale soot/oil marks around the seem, usually underneath, but also getting an assistant to repeatedly rev up the engine quickly. You can visibly see the 2 parts separating as the boost builds - it can be quite subtle, as can be seen from this video (although you can just hear the boost escape:
Intake Manifolds
These tend to split above the middle cylinder and under the rubber sound deadening around the injectors.
Best way is to visually check for oily/sooty telltales blowing up from this area towards the middle of the V - engine cover needs to be removed. In this example, I've wiped that area with a Grimex (you can see the "wet" area from the grimex just to the right of said grimex, and under the pipes and cables, and the state of the grimex. Note the electrical connector on the left looks like its had oil/soot blown on it. If this hadn't failed, it would be clean, maybe just a small amount of dust etc
Also, check the foam on the underside of the engine cover for oily/sooty telltales, circled in red
And some pictures of a split intake manifold - always seems to be the middle inboard inlet that goes:
Close up:
