Rawze.com: Rawze's ISX Technical Discussion and more

So i just preformed the complete EGR Tune on my 2016 Peterbilt 567 with a ISX15 CM2350 ESN 79856327. I also removed the intake as well everything including the EGR Mixer Tube which I didn't remove because of the coolant lines.. so when I got it all back together and fired it up at 9:30 last night it threw codes for every sensor on the EGR side. The EGR Valve SID 27 FMI 4, exhaust back Pressure, DeltaP, and EGR Temp. All of which are on the same line.

This was my 1st ever EGR Tune I was meticulous and made sure everything was done correctly and not a drop of chemical on any sensor.

So this morning I checked all the plugs everything read between 4.95-4.99 EGR valve at 5.05.

1 thing I remember was that the EGR valve had something rattling around inside of it as I was turning it to clean it.

So I'm no good at diagnosing electrical problems and going to take it to Cummins Wednesday but I'm curious if it might require a recalibration because it's been cleaned. Or if the EGR valve is broken. I did spray every sensor and plug out with that CRC Electrical component cleaner and blew them out with the compressor.. kind of upset it broke the first time I ever tried to clean it up if that's the actual problem but I just don't know.

No, the ecm does not meed any kind of calibrating if you clean or replace sensors.

Sounds like you used chemicals/solvents to clean those sensors themselves instead of replacing the ones that were old/clogged/dirty?. Another mistake?.

I removed all sensors and placed them in the cab of the truck. None of them came in contact with any carburetor cleaner

So this afternoon I'm going to change out the DeltaP and exhaust back Pressure sensors with the old ones that worked just fine but replace annually and keep the old ones as spares and see if those codes clear

Well that's annoying. The old DeltaP & Back Pressure sensors cleared the code. So now I want to know what killed the brand new sensors. I literally removed them set them in the cab to keep them safe and when I hooked them back up they died.. it makes no sense to me they shouldn't be that touchy

(01-01-2019 )Wright_Way Wrote: [ -> ]Well that's annoying. The old DeltaP & Back Pressure sensors cleared the code. So now I want to know what killed the brand new sensors. I literally removed them set them in the cab to keep them safe and when I hooked them back up they died.. it makes no sense to me they shouldn't be that touchy

Someone sold you chineese parts?

So the EGR valve shorted internally you could hear something rattling around inside of it. Cummins best guess was that shorted the other sensors out. So yesterday I ran up to Knoxville and got a new EGR valve and all 3 sensors. Put them on. The codes are still showing for the EGR valve and temp sensor, but without Insite I think it will take a couple of starts for them to clear