T ea7470

Yes the two intake sensors on the intake manifold were not reading correctly the back one behind the computer had a broken wire also boost tested it and found the intercooler hose was breaking down and blistering on the inside and boost was seeping out. But. Also another cause of this problem is dickey injectors..

Not a red head and was Australian built. Has a manual wastegate not electric

Hi guys new here hoping someone can help have a 2008 ch688 that keeps throwing a fult waste gate data intermittent. Now it's doing this when you are coasting with no load on the engine and the intake manifold pressure is low. On a long pull it's fine plenty of boost and not over boosting. Have replace both sensors in the air intake brand new turbo and waste gate new waste gate hose. New crank and speed sensors and still no luck. Any clues as where to go next 🤔 mack dealer is stumped to