Hello have a school bus 09 466 school bus that came in for no power and lights on dash. I ran tests and on the amt test it would throw a 2352 ebp above desired 3346 ebp cannot build at egr test, which I have seen in the past. We replaced the ebp sensor and made sure tube was not plugged. This did not help . Then pulled the egr and got a look at the cold side egr cooler which was plugged. It also had a very plugged air filter. Got new parts in went for a drive no lights on. Before it would throw codes on just a test drive. Decided to run the tests again to see if it would past the amt test. Know I am getting just the 3346 code. Not a lot of info as far as testing goes, basically ebp does not meet expected response. Does not say what pressure high/low ?With the air filter being plugged an egr cold side cooler being plugged , could I have a hot side egr cooler plugged as well or concentrate on exhaust. Any help would be appreciated. Thankyou.
It could be usually if one is gone the other is right there behind it , I've seen alot that fail that test but never have an issue on road or throw a CEL on
OEM trained in wiring and all engine platforms for over 20 years
If your cold side was plugged, I would definitely think your hot side would be plugged too. Also, have you done the bounce test with the VGT? if EBP is not building I would think it might have something to do with the turbo.
09 int 466 -codes 2352/3346
Posted - 05/12/2019 : 11:21:20 AM
