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I hadnt thought of checking my software version, maybe its due for an update

I didnt mention that in my original post, but I tried that as well as reading the ECU again and saving as a new file name. Neither work.

Trying to tune a 2005 Suburban 5.3 for a swap. I have deleted all the EVAP codes, but P0455 will not stay NO ERROR REPORTED. It will let me edit it and save it, but if I write the file (or re open)...

2017 Chevy SS - has FPCM - Im trying to run the pump to test a leaking injector O ring repair. When I go to VCM scanner and command FP on I get nothing. Is there a different method or does this...

Bill

Removing the TCM fuse did allow me to tune the ECM and remove DOD. I look forward to the next software update so I can remove a little torque mgt. Thanks for the help

Didnt work. Emailed you again with files.

Roger, will do this evening and let you know how it goes.

I have already emailed support, but I wanted to see if anyone else had this issue.

Car is a 2010 Camaro 2SS auto built in Feb 2010. Just hooked up to it for the first time last night using HPT...

MAF was cleaned this past weekend.

If it was fuel pressure, I would assume it wouldn't just be leaning out on one bank (if in fact it is). If it was a clogged injector, I should see some other...

Nope, not going to. The car isn't modified. I don't need a wideband. I'm not changing the tune. Just scanning to try and find this issue

The car is picking up knock under WOT. Was wondering if this was a contribuing factor. I realize that changing the O2s is a good idea, but I was hoping to find more of a reason for the odd...

Car is a bone stock 2000 Formula M6. Under WOT, I'm experiencing a weird issue. The upstream Bank 2 O2 will flatline around 860mV as it is supposed to, but the Bank 1 sensor will flatline briefly,...

Did you remove timing or adjust the knock sensors?

Any comments? I figure some small knock is probably normal, but it is picking up a large amount

6.0s have VVT and DOD

I was having issues picking up knock while modifying DOD, so I flashed it back to stock and scanned. The truck is knocking significantly with DOD engaged. Whats the deal? Truck is 100% stock with...

IATs were in the mid 70s...
I haven't installed the wideband in the truck yet. I will post a log.

5.3 and 6.0 have DOD, 6.2 does not.

Scanned my truck tonight and it shows 92% injector duty cycle at 5600 rpm WOT. Is that normal for the new engines? I was under the impression that over 80% was bad.

So how are you logging DOD?

I started playing with the scanner last night. I would assume DOD is a status bit since its simply an On/Off value? Do I have to be connected to the truck to select a DOD status bit?

Great info everyone, thanks. I'll do some scanning this week

I'm playing around with the DoD on my truck. Id like it stay in 4cyl mode a bit longer. I found a few threads on here regarding upping the tps max to 20%. I made the change, but it isn't holding...

I just downloaded the tune on my 08 Silverado and the factory tire diameter is set at 30.57 (245/70 17), but my truck came stock with 31.6" tires (265/70 17s). Is this a common occurance?

I tuned the car originally. It was then dyno tuned by a performance shop still using HPT under the shop license. Now after the dyno tune I am trying to edit the idle fueling for him, but HPT says I...