I'm having a heck of a time figuring out what my Start Value and Cranking Position should be. Changing the values and re-booting the MS doesn't seem to be the best way, because it never closes back to where it would be with the engine running and warm.
Would it be possible to write a tool to send a signal to the MS to manually move the IAC. So you could say "Close 50 steps" and it would react immediately? It seems like this would be an extremely useful tool to debug new IAC setups and it would reduce the testing time to almost nothing.
Thanks.
Tool to Test IAC Motor
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
Re: Tool to Test IAC Motor
I've often thought this sort of 'debug' test method for the IAC would be invaluable. Maybe it might be worth while asking Al if it's possible to include in any next code release IF there's any room left in memory.
Sydney, Australia
Successfully MS2 v3.0 squirted 1971 Holden Monaro HQ
400 Pontiac, gasket matched #16 heads, Tomahawk intake, 1000cfm 4bbl throttle body.
Successfully MS2 v3.0 squirted 1971 Holden Monaro HQ
400 Pontiac, gasket matched #16 heads, Tomahawk intake, 1000cfm 4bbl throttle body.
Re: Tool to Test IAC Motor
You could take advantage of a variable that is already in the code. It is called IdleAdj and is in in2ram. Change your Megatune ini to put this variable in a dialog box. Change that value and it will change your idle step. I've done this while debugging my dad's IAC.
1986 Nissan Stanza Wagon 4WD, CA18DET, GT2860RS, 850cc Injectors, Microsquirt, Shuttle XS35GT Carputer
Re: Tool to Test IAC Motor
Hi Nismoryco, would you mind expounding on what you mean by creating a dialog box in Megatune? I'm not really sure how to do that. I went through the Megatune ini, and did see all the existing dialog boxes, but I have no idea how to create a new one. Any tips or suggestions would be appreciated.nismoryco wrote:You could take advantage of a variable that is already in the code. It is called IdleAdj and is in in2ram. Change your Megatune ini to put this variable in a dialog box. Change that value and it will change your idle step. I've done this while debugging my dad's IAC.
Thanks!
-Patrick-
'81 Fiat Spider - Turbo charged, MSII, EDIS4
'04 SRT4 - Daily driver
'04 SRT4 - Daily driver
Re: Tool to Test IAC Motor
I made a modified .ini file for the latest 2.885 code. If you aren't using this code, you can at least see the changes to take advantage of this variable.
1986 Nissan Stanza Wagon 4WD, CA18DET, GT2860RS, 850cc Injectors, Microsquirt, Shuttle XS35GT Carputer
Re: Tool to Test IAC Motor
Thanks nismoryco! I'll give that ini file a try.
Patrick
Patrick
'81 Fiat Spider - Turbo charged, MSII, EDIS4
'04 SRT4 - Daily driver
'04 SRT4 - Daily driver
Re: Tool to Test IAC Motor
That's fantastic. I think I got it dialed in with a lot of trail/error, but this will still be invaluable. Thank you.
Hoping to start my engine tomorrow morning <Pray>.
Hoping to start my engine tomorrow morning <Pray>.