i have this 05 bus with a 365 its failing smoke test to much black smoke when reving up there are no codes bus runs fine did injector test everything comes up fine any ideas
When you get face plugging Ive seen the converter get a flow area the size of a quarter. The engine will be straining to deal with the backpressure and you get the same amount of fuel going in but it doesnt burn causing black smoke. An easy test for face pluggin is slide the muffler back and run it as a straight pipe. I cut a cleanout port in the ends of the muffler and wash the junk out of the honeycomb then weld the port back on. I also clean the egr valves and have a dummy plugged off egr valve for testing. I leave the original plugged in so the ecm doesnt know its blocked off. Of course the back pressure tubes and sensors all need to be checked/cleaned. Its kind of a system health check/tune up if you will. If I get an erams fault on a air test the turbo comes off as well and checked for sticking vanes and worn actuators.
i took the air filter out and it passed inspection but it still smoked a little with it out so there is still a problem somewhere but it runs great so mot sure if an injector is hangin but was gonna try what mastertech said
05 ce bus emission fail
Posted - 07/09/2015 : 08:53:34 AM
