Questions about the E38 as a Stand Alone

[MSURacing]

Hello everyone,

I have a question in regards to the E38 as a stand alone controller. I have a 08 Tahoe DOD 5.3L. I tried using the stock cal for dyno use, with all the VATS and such turned of in hopes of it working. Bottom lie is, it wouldn't run. So, I reflash with a Manual Z06 Vette cal that I have running with no issues in a sprint car, and poof, it works.

So, what I am thinking is for some silly reason it needs to see the trans controller in order to start. Am I way off here or not? If this is the case, is there a bit I can turn off in order to do this correctly?

I would like to use the stock truck controller due to the fact that I have a stock truck engine. I want to dig into this thing change by change, and using the Z06 box is a bandaid for the situation.

Any help is always appreciated.

[GMPX]

Best bet in these situations is after you have tried to start it (and it fails) check the DTC's. The ECM will usually tell you what is wrong.

I think even on an Auto with the TCM missing they will still run.

I agree with you on sticking with the E38 as the controller, best check what DTC's are getting set and go from there.

[ChipsByAl]

The TCM will let the ECM know the vehicle is in park or neutral. A non-communicating TCM can cause a no start.

[GMPX]

I had thought about that, but then not knowing if they are using the ECM controlled starter I didn't want to say anything. I have a feeling the calibration to enable the engine to start without the clutch pressed also works with the P/N switch.
If they can get the DTC's and something about the P/N switch it there we can sort it out.

Cheers,
Ross

[MSURacing]

SOrry, I should have been more clear. What is happening is I have a starter on the dyno, so it cranks, it has spark, but the injectors are not firing. Not a single click. I will work on it more on Monday.

On a seperate not, I do like the LIngenfelter converter box. It works flawlessly.

[gmh308]

Hello everyone,

I have a question in regards to the E38 as a stand alone controller. I have a 08 Tahoe DOD 5.3L. I tried using the stock cal for dyno use, with all the VATS and such turned of in hopes of it working. Bottom lie is, it wouldn't run. So, I reflash with a Manual Z06 Vette cal that I have running with no issues in a sprint car, and poof, it works.

So, what I am thinking is for some silly reason it needs to see the trans controller in order to start. Am I way off here or not? If this is the case, is there a bit I can turn off in order to do this correctly?

I would like to use the stock truck controller due to the fact that I have a stock truck engine. I want to dig into this thing change by change, and using the Z06 box is a bandaid for the situation.

Any help is always appreciated.

My experience with 5.3 cals is that they dont work that well :grin: but have started ok whether auto or manual. Have seen some cals that wont start until the second key on attempt.

[minytrker]

SOrry, I should have been more clear. What is happening is I have a starter on the dyno, so it cranks, it has spark, but the injectors are not firing. Not a single click. I will work on it more on Monday.

On a seperate not, I do like the LIngenfelter converter box. It works flawlessly.

I have used several of there boxes, much nicer than swapping reluctor wheels out for sure. Did you ever get this sorted out? I ran into the exact same problem with a 6.2 escalade motor as a standalone.

[MSURacing]

no I haven't yet. How did you fix it? Thanks a bunch in advance