My uncle went down to Miami to pick up a travel trailer, threw a wrench light and went into limp mode close to home. No CEL but has p0405 for egr a sensor circuit low so new egr valve on the way
Also has overboost and underboost codes, from what I can tell the overboost is most likely what put it in limp mode. Can a stuck egr be responsible for that too?
Once the valve is replaced I should be able to run a test on variable turbo with forscan as well as check the exhaust back pressure sensor (will compare against map and barometer).
Any other thoughts?
Hoping we don’t have to pull the turbo but won’t be surprised, it does sit a LOT. When it’s used it does get plenty of WOT though
Coolant flush, coolant filter, bulletproof egr cooler and new oil cooler were done a while back. It's a company truck and still stock head bolts so not really interested in deleting/tuning
Sent from my iPhone using the svtperformance.com mobile app
Also has overboost and underboost codes, from what I can tell the overboost is most likely what put it in limp mode. Can a stuck egr be responsible for that too?
Once the valve is replaced I should be able to run a test on variable turbo with forscan as well as check the exhaust back pressure sensor (will compare against map and barometer).
Any other thoughts?
Hoping we don’t have to pull the turbo but won’t be surprised, it does sit a LOT. When it’s used it does get plenty of WOT though
Coolant flush, coolant filter, bulletproof egr cooler and new oil cooler were done a while back. It's a company truck and still stock head bolts so not really interested in deleting/tuning
Sent from my iPhone using the svtperformance.com mobile app
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