Just bought first diesel about a month ago. It's an 08 6.4 that already had from the manifolds back straight 4" exhaust dpf gearboxz delete chip. Everything works great and I'll never go back to a gas truck. Problem is I'm needing to get one of two readiness tests to run to to pass a certain test without putting the stock exhaust back on. Any suggestions or tricks? The two readiness tests not running are EGR and catalytic Thanks
It makes sense that those two are reading "not ready" if they are disabled. I guess you are looking for a way to trick the computer. I've never heard of or seen anything. I'm thinking you'll have to put it back to stock to pass those tests.