intermittent spn 0102 fmi 18 cm871

[Rawze]

Check the EGR soft boot that is on the back side of the head behind cylinder #6 exhaust side. It tends to burn out a hole between the head and the boot, making it hard to spot when they get old and then cause low boost.

Also take the hard pipe on the drivers side where it comes off the top of the EGR valve (intake side at cylinder #6 area) , and give it a good yank. They rust out internally there, and then it lifts off the egr valve slightly when under higher boost, because it has rusted apart internally.