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P026D HELP !!!! WONT SMOG

Ffeggleston

Member
Mar 26, 2020
35
7
Truck Year
2016
Tried to smog today and my test are failing because some of my emission monitors are not coming back on. This code when read states fuel quantity error or something of that nature. I went from a SFT Stage 1 tune back to stock and have drove it probably over 500 miles. They have verified that it in fact the stock tune that is loaded. I have even installed new fuel filter just for good measure, cleaned DPF Injector, air filter, and MAP. Any ideas on what I can get to fix this. I do have an appointment at the dealership, but it is not until next week.
 

TC Diesel

Well-Known Member
Jul 14, 2016
2,260
624
Truck Year
2015
This code is common among all (HPCRs) What you will read on the net are complex costly procedures and diagnostics, It easily fixed and cost only time. The procedure needs to be explained, VIA Phone, You are welcome to call Me and if you want to post the fix is fine with Me, I'm tried of My info finding its way back to 1500diesel.XXX.
 

Ffeggleston

Member
Mar 26, 2020
35
7
Truck Year
2016
This code is common among all (HPCRs) What you will read on the net are complex costly procedures and diagnostics, It easily fixed and cost only time. The procedure needs to be explained, VIA Phone, You are welcome to call Me and if you want to post the fix is fine with Me, I'm tried of My info finding its way back to 1500diesel.XXX.
PM Sent with Number. Thank you very much.
 

Temerarius

New Member
Dec 17, 2020
3
0
Truck Year
2015
Greets all,

New to the forum and slammed headlong into the same issue as the user above.

I thought it was a clogged MAP sensor, but pulled it, cleaned it, cleared the codes and... boom... a few miles later, it pops back up (P026D). The code info is, not very helpful. I'm wondering if it's a air leak in my intake? Or...?

Any help or ideas would be greatly appreciated.
 

Temerarius

New Member
Dec 17, 2020
3
0
Truck Year
2015
Any idea what the issue is?

I'm trying to avoid the dealer at all costs, they have never been (in my experience) even moderately capable and tend to break stuff along the way.
 

Ironcity

Member
Dec 16, 2020
39
11
Truck Year
2016
Greets all,

New to the forum and slammed headlong into the same issue as the user above.

I thought it was a clogged MAP sensor, but pulled it, cleaned it, cleared the codes and... boom... a few miles later, it pops back up (P026D). The code info is, not very helpful. I'm wondering if it's a air leak in my intake? Or...?

Any help or ideas would be greatly appreciated.
I had that code this summer. It came on, but the truck continued running perfectly fine. I took it to the dealer. They cleared the code out and found nothing wrong. They said it possible the fuel may be borderline or it could have been a glitch and this was fairly common. Months and thousands of miles later, no issue.
I believe the code is for an unexpected quantity of fuel injected.
 

Ffeggleston

Member
Mar 26, 2020
35
7
Truck Year
2016
Yep agreed. Problem is mine will keep that code on until it throws the light. Then with a light on it won’t pass smog.
 

Temerarius

New Member
Dec 17, 2020
3
0
Truck Year
2015
Fun!

I'll run it awhile longer and see. The truck has 81k on it and this is the first time this has popped up, but, it popped up right after I changed the air intake and had the Manifold replaced/redone (looked a bit like a chocolate cake in there), so I wasn't sure if they might have been related.
 

hankinpageaz

New Member
Sep 8, 2022
2
0
Truck Year
2020
This code is common among all (HPCRs) What you will read on the net are complex costly procedures and diagnostics, It easily fixed and cost only time. The procedure needs to be explained, VIA Phone, You are welcome to call Me and if you want to post the fix is fine with Me, I'm tried of My info finding its way back to 1500diesel.XXX.

This code is common among all (HPCRs) What you will read on the net are complex costly procedures and diagnostics, It easily fixed and cost only time. The procedure needs to be explained, VIA Phone, You are welcome to call Me and if you want to post the fix is fine with Me, I'm tried of My info finding its way back to 1500diesel.XXX.
TC Diesel, I have that trouble code P026D and I'd like to clear it off. My truck has 51850+ miles on it. It came up after refueling. I cleared it off and ran good for 3 days. Now the code is back.
I'm new to this forum. I need to know how I can get in touch for solving the issue.
 
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