The crackdown I'm referring to is the 2020 EPA National Enforcement & Compliance Initiative that goes after aftermarket diesel delete devices and emissions defeating tunes. A search will give a lot more info on this. Around that time, I saw Banks stop selling all their ecodiesel performance...
I'd like to address a previous comment about dealer ECU flashes and SFT tunes... SFT uses VIN as well as software version of the stock tune to ensure only the licensed purchaser can load their tune. This is because with an OBDLink MX or MX+ unit and the Alpha OBD app, one can change the VIN in...
Did some "surfing" and most causes are some sort of leak/seepage at fuel injectors or fuel regulator. Occasionally it's an exhaust leak - didn't say where.
The "permanent" code will go away once the problem is fixed and you drive the truck for a day or two. Erasing the code allows you to t-shoot one change at a time to see if the CEL comes back.
Yes - stock exhaust, and yes just an experiment.
I loaded the stage 2 tune again right before a 60 mile highway trip. Conditions were temp in the low 90s and elevation 5000 - 5500ft. Ran good, not much improvement on the MPG average. Likely due to a/c running constantly. I could feel some...
Most of the fuel system you could flush, but the high pressure pump is likely damaged and sent metal into the injectors. Those two should probably be replaced. The rest can probably be saved. That is, if you can find a mechanic willing to spend the time to flush stuff instead of wastefully...
Stage 2 update: EGTs tend to run cooler (100°ish) at idle and light throttle, the difference reduces under heavier throttle. Fuel consumption is about 1 mpg better - Approx 75% freeway and of that, roughly equal parts traffic and cruising speed. Throttle response is improved some over stage 1...
Additional info on SFT stg 2 trial: The truck still has factory exhaust with dual tips at bumper, and all emissions equipment is in place. Only mod is the banks steel intake tube instead of the intake silencer between airbox and turbo.
Update: Just loaded the stage 2 tune last night and drove to work on it today. DEF gage is off, manifold temps are cooler (like EGR is off), even sharper throttle response than stg 1, and EGTs are lower. I'll keep watching and give another update in a little while.
That sounds like a bad sensor, and the dealer is not doing their due diligence on the troubleshooting.
My 2 or 3 cents...
When the CEL comes on again, take it to a parts store to have the code(s) read and come back to this forum with them. Collectively, we should be able to narrow things...
Back when I first got my 2015 (used), I noticed that big plug hanging down. I put a couple zip ties on to hold it together and to hold it up. Haven't experienced any electrical issues (yet - 159k mi)
Hello Moose,
Here's my 2¢:
Generally, they are decent trucks, but there are a couple of things that it will need to live a long time. First, the oil needs to be changed at 7-8k miles (not the 10k the OM says). Plus I recommend putting some sort of viscosity additive in as well (I use Lucas...
With SFT, when the dealer reflashes my ECU, I can't reload my tune. I have to read the new program, send it to SFT, then they send me a tune that the programmer will load in the ECU.
The last time this happened, SFT sent me both stage 1 and stage 2 tunes. I've been hesitant to run the stage 2...
Mr. Jensen:
I've been running my restrictor for a little over 30k mi and It hasn't popped any codes. I already had the SFT stage 1 installed. The only gauge I have is how much soot collects in the crossover tube - no real build up, just thin residue coat. My logic on it is this: Restricting...
I use Power Service and Howe's and add to every tank. The way I've found to greatly reduce soot (shy of turning it off w/ a tune or deleting) is to put a restrictor in the EGR tube. The one I use is a 1" sink strainer (ACE Hardware p/n: 40291) with a large flat washer (ACE p/n: UCU) safety...
I've also seen 30k mi in the owner's manual. Early on, I saw in forums that many were changing fuel filters at 15-20k mi and I adopted that practice. So far I've not experienced any HPFP issues - 158k currently. That being said, I put in additive every fill-up for added pump lubrication among...
I tried doing that on my old 6.5 GMC once, it didn't run well on that tank. Took a couple tanks to clear out deposits and run same as before. Later, I played around with 2 stroke oil and settled on 1oz/10gal. Any more wouldn't quite run right.