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Author: Subject: Any Megasquirt Gurus?
PaulM

posted on 27/10/15 at 07:53 PM Reply With Quote
Any Megasquirt Gurus?

It's running....just about! It's running very rough though and not on all cylinders consistently. Are there any tell tale signs from this video of the Megasquirt software?


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mackei23b

posted on 27/10/15 at 09:58 PM Reply With Quote
An msq file would be useful to see what is going on.

Looks like you are running MAP for the fuel table, you'll need either a blended table , or for simplicity use alpha-n, there is a starter for 10.

Cheers Ian

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big-vee-twin

posted on 27/10/15 at 11:01 PM Reply With Quote
Manifold air temp shows -40 farenheight.

Have you an air sensor connected is it calibrated - MS will be putting loads of fuel in thinking its that temp.

May want to change to centigrade too.





Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016

http://www.triangleltd.com

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PaulM

posted on 27/10/15 at 11:07 PM Reply With Quote
Ian - I have an msq file I can email if it helps, just U2U your email.

I wasn't sure about that inlet temp either.....spotted it after doing the test and realised what it might be doing. I'll look at re-calibrating it...although I'm running bike throttle bodies so where would I mount it!?

Edit...come to think of it, I don't think there's a sensor attached so maybe I should fit one!?

[Edited on 27/10/15 by PaulM]

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big-vee-twin

posted on 27/10/15 at 11:43 PM Reply With Quote
Mines fitted into backplate to filter but you can tiewrap it to a body for now.

Deffo fit one otherwise MS will not fuel correctly


[Edited on 27/10/15 by big-vee-twin]





Duratec Engine is fitted, MS2 Extra V3 is assembled and tested, engine running, car now built. IVA passed 26/02/2016

http://www.triangleltd.com

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BaileyPerformance

posted on 28/10/15 at 08:13 AM Reply With Quote
As already said air and water temp sensors must be accurate

I see you have MAP and FPR connected, best leave both open to atmos and setup ECU to run in Alpha N only.

Ensure your TPS is working properly and calibrated.

Have you balanced your throttle bodies?

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Oddified

posted on 28/10/15 at 09:26 AM Reply With Quote
Other than the air temp needing sorting as mentioned above, it's way to lean to the point of not being able to run when you open the throttle. Don't be surprised if when you do make the air temp work and that then takes more fuel out that it doesn't run at all then.

Get a file of someone with a similar set-up/sensors. Use tps/alpha N.

Ian

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PaulM

posted on 28/10/15 at 12:22 PM Reply With Quote
Thanks for all the input and the U2Us guys, I'll have a look at the air temp tonight and reply to U2Us. There is an empty plug in the loom near to where I'd expect the inlet manifold sensor to be, so there's every chance it just needs hooking up.

When I fitted the tps (which is a Suzuki one) and calibrated it, the blue bar doesn't travel the full length on the screen. I calibrated fully open and fully closed as end points but the bar isn't goi g from zero to whatever the other end value is (300 ish). Is that also going to cause an issue or does the tps just need the end points?

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greavesy7

posted on 28/10/15 at 05:39 PM Reply With Quote
I would also have a look at the fuel filter looks like a carb one ?
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PaulM

posted on 28/10/15 at 08:44 PM Reply With Quote
quote:
Originally posted by greavesy7
I would also have a look at the fuel filter looks like a carb one ?


I think that should be ok....its one of Fuel Injection Filter 8mm Sytec Motorsport SSF5160 - Universal Track Race Rally

[Edited on 28/10/15 by PaulM]

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