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Factory remote start.
I can clear all codes start it and shut it off and code B1001-46 is back. I can't find much information on that code.
I was going to start changing wiring harness one by one...

The plastic protector sleeve is 80% gone. I can't find any bad wires or plugs. The only common code that says on it is B1001-46 option configuration error. I was going to get a new engine wiring...

Thanks everyone for all the input. I will let everyone know what I find when I find it.

i will add the MAF to the log and run it again. can let it run for 5 min or less and the problem will show up. sometimes it throws codes, but they are random, Blind spot detection malfunction, next...

I have a 09 Yukon xl 6.2l 100% stock with stock tune. it will randomly quits, sometimes it will recover (RPMs will drop to 0 and come right back in under 1 sec, sometimes quits) driving or at idle....

No codes at all. Don't even try to shift I am hoping I can work on it this weekend.

No one??

I was work on my tune when my 03 silverado ss stopped shifting into 3rd or 4th. Rebuilt the trans about 1k miles ago used all good parts and all new solenoids. After driving it a little off and on....

look at my tune. don't seem to have much power.

lq9, 243 heads, xr275hr cam, long tube headers, 3" true dual exhaust, E-fans, built 4l65e with a 2600 stall, ac delco 12613412 fuel injectors, i...

Thank you. I way looking for that post but it was not coming up.

I have the mpvi2. What do I need so it will read thur the vcm? Or is there a other way to tune with wideband?

I have a 03 Silverado SS. what is a good wideband setup to run with the MPVI2. no AWD dyno's close to me and I need a good way to tune my new build.

does anyone have injector data to run GM 12613412 flex fuel injector in a 03 lq9?

thanks.
I had a feeling it was to small of injector and/or fuel pump. I was making wild changes. trying to see if it was the tune or something wrong.

I am running alcohol free 93 octane. what is...

can someone take a look at my tune and tell me what i am doing wrong?
i have two big things going on and no matter what i change they stay the same.
1. RPM's are slow to go back down to idle....