E38 VVE Setup Guide

[swingtan]

Thanks for the kind words guys. I know it took me a while to get my head around the VVE adjustments. A couple of guys asked what I'd done and I felt if I put something together it would not only reinforce my own thoughts, but help as many others as possible.

Paul has suggested that the best way to go mafless is not 1, 1 approach, it might be better to reverse the highs and the lows. ie. swap the 13500 and the 10. There have been some mystery problems in some cars that are set with 1s.

I have heard the odd report about this, but didn't experience anything myself with the "all 1's" settings. I have no problems changing it, as long I can understand why. I like to at least know the reasons why things are done before I start telling others what to do

I also edit DTC Type P0101 P0102 P0103 from B to C (not reported)

I take it you mean in "DTC Type" ? I did note on page 4 to turn off the codes in "DTC MIL" ( though I didn't actually say it was in DTC MIL, just to disable the MIL light ). Does setting these to "Not Report" add anything over not logging the DTC in the ECM? I guess if you were staying SD, then you would want these off.

Also DFCO delay in M6s is set to 0.1s. This may have been a mistake in the stock calibration.

I just checked my stock tune ( L76 M6 ) and it is set to 0.5 standard. To make it feel smooth, I think the injector timing is used to extend the time it takes from no DFCO to full DFCO and vice versa.

It looks like I've singled you out Steve, but it's just that you have raised some good points.

Simon.

[Jester]

I take it you mean in "DTC Type" ? I did note on page 4 to turn off the codes in "DTC MIL" ( though I didn't actually say it was in DTC MIL, just to disable the MIL light ). Does setting these to "Not Report" add anything over not logging the DTC in the ECM? I guess if you were staying SD, then you would want these off.

I think Steve meant setting them to 'C' "Non Emissions" in DTC Type.

[swingtan]

Yes, I got that. I did some testing last weekend and setting "DTC Type" to "X: Not reported" is not very helpful. there are 2 possible results from doing this.

1. If the MAF is still plugged in correctly and functioning, it will still be used for air flow measurements as you have just told the ECM to ignore any MAF failures. So it will continue to use the signal coming from the MAF, even if the test settings say it should have failed.
   
2. If the MAF has been disconnected, the car will start and then stall as it will get no fuel. As the PCM has been told to ignore MAF failures and the MAF is disconnected, it will read the air flow as the minimum MAF setting ( in my case 0.55 gm/S ). Given the very small airflow being used, the PCM will simply not inject any fuel and the engine will stall.
   

So the idea would be to set the following:

If you are planing on going back to using the MAF, the changes should be...

DTC MIL - P0101 = No MIL
DTC MIL - P0102 = No MIL
DTC MIL - P0103 = No MIL

and optionally

DTC Type - P0101 = C: Non Emissions
DTC Type - P0102 = C: Non Emissions
DTC Type - P0103 = C: Non Emissions

All these will need to be returned to stock when the MAF is returned to service.

If you are going to remain MAF-less...

DTC Type - P0101 = C: Non Emissions
DTC Type - P0102 = C: Non Emissions
DTC Type - P0103 = C: Non Emissions

DTC MIL - P0101 = No MIL
DTC MIL - P0102 = No MIL
DTC MIL - P0103 = No MIL

[Jester]

If you are going to remain MAF-less...



DTC Type - P0101 = C: Non Emissions
DTC Type - P0102 = C: Non Emissions
DTC Type - P0103 = C: Non Emissions

DTC MIL - P0101 = No MIL
DTC MIL - P0102 = No MIL
DTC MIL - P0103 = No MIL

Yes thats how mine are set for mafless.

[swingtan]

I have made a small update to the guide to take into account the MAF test settings as mentioned in Oztracks post. Nothing major, I just wanted to make sure that the guide was in line with current best practice....


Simon.

[TurboCamaro]

Yes, I got that. I did some testing last weekend and setting "DTC Type" to "X: Not reported" is not very helpful. there are 2 possible results from doing this.

1. If the MAF is still plugged in correctly and functioning, it will still be used for air flow measurements as you have just told the ECM to ignore any MAF failures. So it will continue to use the signal coming from the MAF, even if the test settings say it should have failed.
   
2. If the MAF has been disconnected, the car will start and then stall as it will get no fuel. As the PCM has been told to ignore MAF failures and the MAF is disconnected, it will read the air flow as the minimum MAF setting ( in my case 0.55 gm/S ). Given the very small airflow being used, the PCM will simply not inject any fuel and the engine will stall.
   

So the idea would be to set the following:

If you are planing on going back to using the MAF, the changes should be...

DTC MIL - P0101 = No MIL
DTC MIL - P0102 = No MIL
DTC MIL - P0103 = No MIL

and optionally

DTC Type - P0101 = C: Non Emissions
DTC Type - P0102 = C: Non Emissions
DTC Type - P0103 = C: Non Emissions

All these will need to be returned to stock when the MAF is returned to service.

If you are going to remain MAF-less...

DTC Type - P0101 = C: Non Emissions
DTC Type - P0102 = C: Non Emissions
DTC Type - P0103 = C: Non Emissions

DTC MIL - P0101 = No MIL
DTC MIL - P0102 = No MIL
DTC MIL - P0103 = No MIL

Is this the case for the E67 as well? Will it be consistent that the engine won't start? Or could it start and run fine at times?

[MyM8V8]

Guys. Will the Efilive VVE tutorial and Swingtans VVE set up still be ok for a 2015 Gen F Maloo (R8 SV pack 340kW. T43 6L80E).

Thinking of smallish cam, intake and CAI with 1 7/8" LT headers and 3" duals.

Thanks.