Please help with post DoD delete problems!!!!

[Geotrash]

The diablosport tuner I got has transmission shift point tuning. I can't speak for any older units, but this unit does turn off DoD as well. It's worth a shot as I can use it for other things as well.

Edit: I got the tuner they sell with the kit.

AFM DOD Delete Disable Kit with Tuner for 2007-2013 GM Chevrolet 5.3L Truck SUV Engines

This kit includes everything needed to delete AFM/DOD (Active Fuel Management) from 2007 - 2013 GM 5.3L truck/suv engines. Kit includes a Diablosport PredatorX tuner capable of turning off AFM/DOD. Note: will not fit GMC Envoys Kit Contents GM 12689035 Single Bolt Cam for use w/ OEM Valve...

www.amsracing.net

I've read that it actually just installs a stock tune with DoD disabled on the diablosport forums.

Good luck! Let us know how it goes.

 

[ouch_my_L4L5]

I did the DoD/AFM delete with the Texas Speed kit. Truck starts and idles fine sometimes and sometimes rough. Has ZERO power. Barely makes it up a hill. Now I'm getting the codes
P3449 Cylinder 7 Deactivation solenoid valve control circuit
P3441 Cylinder 6 Deactivation solenoid valve control circuit
P3425 Cylinder 4 Deactivation solenoid valve control circuit
P3401 Cylinder 1 Deactivation solenoid valve control circuit

I have a DoD disabler that I plug into the OBD port until I get it tuned. Is this maybe not working correctly. I'm at a loss and I'm sick of putting money in this thing. I really really need it back on the road.

I had this same problem! The only answer is to tune it. First I tried the obd plug in DOD disabler like you. Then I tried Diablo Sport tuner which was junk in my opinion. Caused all sorts of issues with pinging false misfires, and surging. The handheld unit is slow, laggy, and feels cheaply made. Then I went with HP Tuners. If you're knowledgeable you can tune it yourself. Highly recommend Goat Rope Garage YouTube tuning videos to get you started. There is a bit of a learning curve at first but it is worth it in the long run. No sending out your ECM or swapping ECM. Folks here like Black Bear tuning but I don't have any experience with them. Good news is, if you've tuned one LS, you can pretty much tune any of them. Good Luck!

 

[JPS0284]

You’re better off going with blackbear for a tune, in my opinion. You gotta tune out AFM properly, and they’ll be able to help you get the perfect tune for that cam as step 2. You don’t want a canned tune for an aftermarket cam. I had blackbear tune mine after my cam swap and I’m thrilled with it.

I had blackbear tune my truck and they were great to work with but I second guess paying as much as I did when I could have spent half the money and bought hp tuners and learned about it myself. I was under a hefty time crunch to feel confident enough to pull it off in the given amount of time.

 

[Geotrash]

I had blackbear tune my truck and they were great to work with but I second guess paying as much as I did when I could have spent half the money and bought hp tuners and learned about it myself. I was under a hefty time crunch to feel confident enough to pull it off in the given amount of time.

If you still have their Autocal device it should work for this rig also, which will save you some coin.

I think learning to tune is wise and I have HP Tuners on my Christmas list. But there’s no substitute for expertise for that first tune. I sent Blackbear the cam specs and the data log I recorded before I tore it all down, and Justin sent me back a startup tune that I could use to get up and running and log more data so he could make the final tune.

 

[JPS0284]

If you still have their Autocal device it should work for this rig also, which will save you some coin.

I think learning to tune is wise and I have HP Tuners on my Christmas list. But there’s no substitute for expertise for that first tune. I sent Blackbear the cam specs and the data log I recorded before I tore it all down, and Justin sent me back a startup tune that I could use to get up and running and log more data so he could make the final tune.

That reason alone is why I decided to let them do it. The truck had to be on the road asap and I’m sure it would have taken a frustrating weekends worth of trial and error to get it road worthy.

 

[03GMCYukonXL]

Thanks guys. I'll be checking back in after I get the tuner which comes in Friday. It's worth a shot. If it doesn't work then I'll be going with HP tuners. I'm doing a 5.3 swap into my 1948 Plymouth P15 4 door sedan so I have to learn some tuning regardless. I have done some research and I've found that DoD/AFM disabling is fairly easy with HP tuners

 

[03GMCYukonXL]

**UPDATE**

You guys were right. The DiabloSport tuner did not work. However, I'm keeping it due to all the other things it can do.

Once downloading the tune, the truck idled like shit, kept giving me the lean on bank one AND bank two codes. This is due to the fact that I did a mechanical physical delete because I turned it off on a friends 2007 suburban that still had it and gave it the 87 octan canned tune and the truck ran phenomenally well. Yet mine will not.

I will now be going with HP tuners as recommended and I should have done to begin with. lol. Thanks for all the help and input. I'm not sure yet if I'm buying a unit or using the recommended blackbear tune.

 

[wjburken]

Have you plugged in the AFM VLOM to see if that helps the truck run better in the interim?

 

[03GMCYukonXL]

Have you plugged in the AFM VLOM to see if that helps the truck run better in the interim?

I have. That was plugged in from the very start. It makes no difference for some reason. I've let the truck run for 30 minutes and moved it around and that is literally the only codes I'm getting. Those 4 pesky cylinders.

 

[03GMCYukonXL]

*UPDATE#2*

Guys, I'm slightly devastated. I ordered the HP Tuners MPVI3, did the DoD disable, wrote the new file to the truck. I did the EXACT same thing the DiabloSport tuner did. I get the
P3449 Cylinder 7 Deactivation solenoid valve control circuit
P3441 Cylinder 6 Deactivation solenoid valve control circuit
P3425 Cylinder 4 Deactivation solenoid valve control circuit
P3401 Cylinder 1 Deactivation solenoid valve control circuit
codes with DoD enabled, I get the lean in bank 1 and 2 codes with it disabled, as well as an obvious miss at idle.

Turns out I ordered the kit with VVT cam......I do not have VVT. I'm such an idiot. SO now I have to break into this damn engine again. Can someone please give me a part number for a Non DoD and Non VVT cam?

P.S. The DiaobloSport tuner DOES work to disable DoD. But the HP Tuber MPVI3 is far superior for the same price.

 

[Dustin Jackson]

FYI the LM7 cam is a nonAFM replacement but is on the weaker side of factory cams

 

[Dustin Jackson]

@03GMCYukonXL
looked through my email and here is the part number for the camshaft I used. It is the highest performance Non-AFM Non-VVT camshaft that GM made for these: 12583623

This is for the 5.3 “high output” motor otherwise known as L33

 

[03GMCYukonXL]

@03GMCYukonXL
looked through my email and here is the part number for the camshaft I used. It is the highest performance Non-AFM Non-VVT camshaft that GM made for these: 12583623

This is for the 5.3 “high output” motor otherwise known as L33

Thank you so much man. I've worked on cars for years and this is the worst oversight I've made.

Was there any additional tuning outside of disabling DoD in Hp tuners?
Also, do you agree that the VVT camshaft is likely the culprit here?

This is what happens when a Ford/Honda guy works on GMs lol.

 

[Dustin Jackson]

@03GMCYukonXL I am just now catching up to your story so sorry If I am asking questions that have already been answered.

Get that new cam installed with non-AFM and non-VVT components.

Flash your truck back to stock and use HP Tuners to ONLY disable AFM and VVT.

It sounds like the first AFM disabler you were using only cripple's the emission system to trick the motor to not enter V4 mode but it would still be looking for the AFM parts so that would explain what you were seeing in the first post. I can't explain the problem you were having after using a proper tune to disable AFM.

 

[03GMCYukonXL]

@03GMCYukonXL I am just now catching up to your story so sorry If I am asking questions that have already been answered.

Get that new cam installed with non-AFM and non-VVT components.

Flash your truck back to stock and use HP Tuners to ONLY disable AFM and VVT.

It sounds like the first AFM disabler you were using only cripple's the emission system to trick the motor to not enter V4 mode but it would still be looking for the AFM parts so that would explain what you were seeing in the first post. I can't explain the problem you were having after using a proper tune to disable AFM.

So I ordered the vvt cam with the kit and I do not have vvt. So I put in the wrong cam. Seems like this is the only thing to explain my issue. I put in LS7 lifter and non DoD valley cover. All that stuff. Just I put in a damn VVT cam because I didn't pay attention when ordering. Also, I did put it back to stock tune and used HP tuners to disable the DoD. That's the only change I made.

 

[Dustin Jackson]

@03GMCYukonXL Sounds like you are on the right track!

 

[03GMCYukonXL]

@03GMCYukonXL Sounds like you are on the right track!

I'm not as familiar with GM's VVT, but it could be that the VVT cam needs to be clocked at a certain position at idle and it's fixed at the position it's in now. It runs ok at higher rpm. Just at idle there is a miss and runs lean. I would assume it would run rich because it's not getting enough lift and there is too much fuel for the air that is let in...however I really don't know. I can think of no other reason this would be happening. If it was a true lean condition then I would be getting those codes with the AFM enabled on the stock tune, but I do not. I only get it when it is disabled.

 

[j91z28d1]

so there's an engine combo that had afm but not vvt? wow gm made some weird combos thru the years.

and the non vvt timing gear set bolted up to your vvt cam? I'm surprised that's not all different. I've seen drawings of the oil passages to engage it, it runs thru the hollow front of the cam but never had one apart in my hands. I'd be worried about oil pressure from the front cam bearing running out the front of the cam without the vvt hardware?
kinda wild, I'd have thought it wouldn't have made much difference tuning wise, the vvt in these ls only move a few deg. it's not like an over head twin cam engine that moves things all over the map.

have you read back the tune after you saved it to make sure the upload took with the afm disabled? I have a odd ball truck, so don't think this is the same for you. but mine stock has disabled in the afm drop down box when it's turned on, but move it to enabled and it turns it off. it very well could be a hybrid only type-o but it's caught a lot of people out on the hp boards saying it's not supported. it is, it's just backwards. again, this very well could be a hybrid only thing, totally different ecm tune and all. just throwing it out there incase.

 

[Dustin Jackson]

@j91z28d1 The earlier version of the LMG motor had AFM without VVT and then in 2010 the same engine code LMG came with AFM AND VVT. I'm sure other engine codes had a similar thing going on. On top of that there are people here who found a benefit from deleting AFM and keeping VVT.

Quite literally adult legos lol

 

[Dustin Jackson]

@03GMCYukonXL I have no experience with VVT so I can't say for certain