[SOLVED] 6.2L stutters/jerks while accelerating

[SmileB44Death]

Hello,

Last weekend my truck decided to run but shortly after die. No codes were present so I had a guy bring his scanner and it appeared the MAF sensor was bad.

So I went ahead and cleaned my throttle body replaced the MAF sensor with a Delphi one and while the battery was disconnected let it set for 30 minutes so the ECM can do a relearn. However now my issue is that when I’m driving it will randomly jerk/stutter.

Facts:
Car: 2012 Escalade Cammed DOD/AFM and VVT deleted
Primary Code: P0102
Secondary: P0010, P3401, P3425, P3441

I’m starting to suspect I need a scanner to do a ECU, throttle body, and MAF relearn or reset. The shop I did my tube with has mixed reviews so I may also need a better tune

[SOLVED]

Issue was the DOD connector power wire was grounding off of the engine

 

[Fless]

Glad it's excelling. More of us should experience that.

 

[Doubeleive]

based on those codes it sounds like it is still trying to read the vvt system. i.e. (not turned off)
but that's just a guess based on the codes and you stating it is physically deleted.
might be advisable to reach out to whoever did the tune and see what they say, even if they have mixed reviews

 

[homesick]

View attachment 482639

Glad it's excelling. More of us should experience that.

LOL, you did an EXCELLent job of catching that. Thanks.

joe

 

[SmileB44Death]

based on those codes it sounds like it is still trying to read the vvt system. i.e. (not turned off)
but that's just a guess based on the codes and you stating it is physically deleted.
might be advisable to reach out to whoever did the tune and see what they say, even if they have mixed reviews

Yeah I will thanks

 

[OR VietVet]

View attachment 482639

Glad it's excelling. More of us should experience that.

They do when I work on 'em!

 

[mikez71]

Possible it's still the MAF..
Since the other codes are secondary, those may be left over from before..
(when VVT was deleted, if codes were not cleared before tune.)

 

[SmileB44Death]

Possible it's still the MAF..
Since the other codes are secondary, those may be left over from before..
(when VVT was deleted, if codes were not cleared before tune.)

It was deleted about 8 months ago I tried duralast but after criticism I returned that and put a Delphi on it

 

[mikez71]

Inspect the wiring too. Scanner/logger would be good to verify MAF output.
(and clear codes)

Since it is still the primary code, that is what I would focus on..

 

[SmileB44Death]

Inspect the wiring too. Scanner/logger would be good to verify MAF output.
(and clear codes)

Since it is still the primary code, that is what I would focus on..

Man I need that tech 2 huh

 

[homesick]

They do when I work on 'em!

I have no doubt.

joe

 

[homesick]

Man I need that tech 2 huh

There're still a bunch of them on eBay, starting at about $375 for the knock-offs.

joe

 

[Doubeleive]

Possible it's still the MAF..
Since the other codes are secondary, those may be left over from before..
(when VVT was deleted, if codes were not cleared before tune.)

could be both, the maf going funky should not cause a vvt issue. I have seen them cause dam near every other code though including misfires

 

[SmileB44Death]

could be both, the maf going funky should not cause a vvt issue. I have seen them cause dam near every other code though including misfires

I forgot to mention I got the vvt deleted about 10 months ago

 

[mikez71]

other codes are afm codes, probably old codes that were never cleared..

And I don't think there is a MAF relearn, and old codes may not be clearable now, so I wouldn't worry about a scanner for those purposes..

 

[Doubeleive]

It would probably be a good idea to connect a scanner and read the live data to see what is happening while driving

 

[Doubeleive]

The maf can cause shift problems which is where the jerk and stutters come in to play

 

[SmileB44Death]

The maf can cause shift problems which is where the jerk and stutters come in to play

Got it thanks I’ll start on that. But if I were to unplug the maf and the jerking stops that must mean it’s a maf issue right

 

[LSCALADE]

For these codes Secondary: P0010, P3401, P3425, P3441, is your AFM disabled in HPT? Those are all related to VLOM.

 

[SmileB44Death]

For these codes Secondary: P0010, P3401, P3425, P3441, is your AFM disabled in HPT? Those are all related to VLOM.

It should be I didn’t tune it a shop did it’s been cammed for like 10 months didn’t have any issues