Steve's Megasquirt/tunerstudio Help Thread

2011rustang5o · Nov 26, 2016

Ah I read on the ms site it was compatible but guess they never did the pre settings. Looks easy to do though.

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a91what · Nov 26, 2016

I always do custom linear and input my own voltages regardless if it's preloaded or not this way I can take the voltages and adjust them if the offset needs to be changed

a91what · Nov 26, 2016

Tidbit of wonderful info everyone. if you are turbo use the speed density fuel algorithm in general settings, for an NA build or belt driven supercharger use the speed density%baro option. it will take into account for pressure changes in the atmosphere automatically.
This will not work with a turbo because of the difference in backpressure during a turbo spool is not always constant.

Made my tune closers to stock.

a91what · Nov 27, 2016

@90sickfox

2011rustang5o · Nov 28, 2016

So is everyone running without a MAF?

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CarMichael Angelo · Nov 28, 2016

2011rustang5o said:
So is everyone running without a MAF?

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If you use an aftermarket ECU like a MSII then the thing is typically set up as a speed density unit, and the Mass Air Flow meter is not used.

a91what · Nov 28, 2016

+1

However maf is possible.... I have been told that it can simplify some of the tuning process. the tricky part is setting up tables for fuel trim during boost.
If your not running turbo I suggest %baro as your fuel algorithm of choice.

2011rustang5o · Nov 28, 2016

I'd rather not play with the MAF. Just another part I can delete out of the engine bay. Got my computer today so I'm gonna watch steves videos all day again and read the ms2 manual again. Maybe tonight it will fire up.

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90sickfox · Nov 28, 2016

a91what said:
@90sickfox

Thanks for all your help ! Its amazing to have this car idle.

I did some searching and found that between 10 and 12in of vacuum is where a xe282hr cam runs normally.

The last noise was the cut out plate and bolts rattling. Sounded like hell !

I'll post my logs here and bids on my thread when the time comes.

You saved me a lot of mooolah ( that I didn't have ). Thanks again Steve [emoji106]

2011rustang5o · Nov 28, 2016

Car started on the base file from ms! Idles rough and rich as hell too. I have a ms2 from 2014 so I had a few connection errors. Think I need to do a firmware update to make the ecm compatible with the new tuning software. Not enough time tonight to deal with this due to college.

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a91what · Nov 28, 2016

I would like to say to all the people that I have helped with MS related questions/problems and to those who I have helped tune there car via teamviewer. If you would please post the issue and the resulting fix on this thread. The only way to get all the info in one place is if we all help contribute, to be honest I cant remember it all and could use some help.

Also if I have helped you please do a follow-up post here and let me know how the car is doing. if there are any quirks or issues you are currently facing, it may be something that has yet to be covered here.

Thank you for your input.

hoopty5.0 · Nov 29, 2016

I'm still fighting mine, but I'm 99% sure it has nothing to do with MS anymore.

2011rustang5o · Nov 29, 2016

I had a bucking and surging issue that I'm hoping I can fix with the ms. I really think it was tune related.

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2011rustang5o · Nov 29, 2016

Trying to set base timing. Need some guidance. I followed the steps on the ms site. With the spout in the timing is jumping ball over. With the spout out i get 0 degrees. I know it was set to 10 degrees with the factory computer. I went in and adjusted the trigger angle and nothing changed with the spout out. What am I doing wrong? Also what are all the ignition settings supposed to be at? Going to watch steves video again.

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a91what · Nov 29, 2016

Removing the spout is no longer an option. the MS cannot control timing at all and freaks out.
In the ignition options/wheel decoder tab set timing from "use table" to "fixed" the use the trigger wizard to set the timing. the set it back to use table.

2011rustang5o · Nov 29, 2016

Why do I get jumping timing? Spout in that is. I only pulled after I saw the jumping so I reverted to stock computer thinking.

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a91what · Nov 29, 2016

The timing is going to move if it's not set to fixed.
When it's set as use table the timing curve is going to move with engine load and rpm.... it's just the way things work. it's normal.

The spout is no longer used at all leave it in and forget it even exists.

2011rustang5o · Nov 29, 2016

So I just did the firmware update because I forgot to this morning. Went step by step in your video. Cranks but won't start now. No faults in red while cranking.

Spout is a distant memory now sir.

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2011rustang5o · Nov 29, 2016

Here is my cranking log. Don't know if it will tell anything or not. car is 331, trick flow track heat heads and intake, 24lb injectors and 70mm throttle body and unknown cam but its thumpy.

LarsD · Nov 30, 2016

If you setup the plug in MS with a wideband is there a self tune option in the software?

Steve's Megasquirt/tunerstudio Help Thread

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