Steve's Megasquirt/tunerstudio Help Thread

94tang said:

Now for questions. Why did you change what you did? What did you expect the results to be from the changes?...(.not questioning your abilities AT all, just trying to learn.)....as always, thanks for your time and advice.

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We are just making changes based on what the car needs, the first tune i sent you was adjusted with no datalog so it was a best guess.
1. I changed the timing table so the ignition table did not 'run away' at idle, ie. the timing went up quickly from 900 to 1300 before now it stays at a relatively the same amount in the entire idle region.
2. I expected exactly what we got, the idle is nice and smooth until the idle goes below 850 rpm at this point i see the idle valve begin to oscillate to hold it at the setpoint. now you need to tweak the idle settings to get the oscillation settled down. the surge is much less drastic.

Without being with the car and limited information it is difficult to set things just how the car likes it, every engine is a bit different.


Things to try next:
lower the idle valve gain [slider bar] this is in the closed loop idle settings.

Adjust the fuel..... I would help with this but there is no good way to explain what needs to be done without showing you.... or doing it for you, but that would not teach you anything

94tang said:

Now for questions. Why did you change what you did? What did you expect the results to be from the changes?...(.not questioning your abilities AT all, just trying to learn.)....as always, thanks for your time and advice.

Also why does the kPa on the timing tables go to 203kPa?.....my car is NA,

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It goes to 203 because that is a table i use when building a base tune.... it covers most* installations it is the same table i am using on my car

Just getting into this. I got a pnp2 locally for a great price. The previous owner has a tune on it for a turbo application. It’s of no use to me. Where can I get a basic tune to start with?
Stock 5.0 bottom end
Edelebrock intake
70mm tb
Ported e7 heads (I’ll likely upgrade these in the spring)
Headers
E303 Cam
24# injectors
5 speed

Any help is greatly appreciated. I’ll read up a lot more before actually installing this!

KZGUNS said:

Just getting into this. I got a pnp2 locally for a great price. The previous owner has a tune on it for a turbo application. It’s of no use to me. Where can I get a basic tune to start with?
Stock 5.0 bottom end
Edelebrock intake
70mm tb
Ported e7 heads (I’ll likely upgrade these in the spring)
Headers
E303 Cam
24# injectors
5 speed

Any help is greatly appreciated. I’ll read up a lot more before actually installing this!

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You can get a base tune from the DIY website or if you like i can help you with a basetune.

a91what said:

You can get a base tune from the DIY website or if you like i can help you with a basetune.

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Your help would be awesome! I’m completely green to this ecu and tuning so not sure where to start. Been trying to read up and watch videos and at the same time trying not to get overwhelmed lol. I think once I get some time with it it’ll click in my brain.

KZGUNS said:

Your help would be awesome! I’m completely green to this ecu and tuning so not sure where to start. Been trying to read up and watch videos and at the same time trying not to get overwhelmed lol. I think once I get some time with it it’ll click in my brain.

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I am going to move this to its own thread. you should download the software [its free] and start getting familiar with it now.

a91what said:

I am going to move this to its own thread. you should download the software [its free] and start getting familiar with it now.

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Thanks! I’ve done just that this morning and started looking around.