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Hey all, I have a 2014 Hino 258 and when it idles, the exhaust brake engages and stalls the truck out. If I keep the truck idled up with my foot on the accelerator, it is fine. But about 10 seconds after letting the truck sit at idle, the exhaust brake will engage and drag the rpms low enough...

I have two trucks with this same code in the DCU, P20B2 coolant shutoff valve malfunction. The trucks are a 2011 and 2013 258. Any ideas on where to start with these?

2014 Hino 258 with 141k miles. Setting code P140D burner misfire. This truck has had everything replaced according to the burner maintenance thread about 25k miles ago. Where to start with this? Just check all the items one by one as the diag steps would indicate? Thanks

What are the chances of both NOx sensors failing at the same time? P1459 is an egr code, could a bad egr valve cause a false reading for the NOx sensors? This is on a 2013 Hino 258. Forgot to add that.

I have a 2013 hino that would not regen and had the p2030 code. As suggested in this forum, I replaced the flame temp sensor, the igniters, the nozzle and the filter. The injector is new ish (put on back in Feb of this year). After these repairs, the truck does a full regen and says regen...