Testing Jimstim1.3

whitneyd · Post by **whitneyd** » Sat Feb 02, 2008 3:36 am

Hello, I just finished my Jimstim1.3 and was wondering what test I can do on it before starting my MS project. Also, will I need Megatune loaded into my MS before trying any test on it. BTW I know I can do the power circut test without it. Thanks

Post by **jsmcortina** » Sat Feb 02, 2008 5:11 am

I've not actually tested the stim standalone, be very careful about where you apply the power voltages - keep 12v away from the processor.

If you get power to it ok, you could use one of the on-board LEDs to monitor the tach output. At very low rpms you should be able to see the wheel pattern flashing.

James

racingmini_mtl · Post by **racingmini_mtl** » Sat Feb 02, 2008 7:51 am

I have a description of how to test the tach signal here: http://www.msefi.com/viewtopic.php?p=184876#184876.

As James mentioned be very careful of any potential shorts.

Jean

whitneyd · Post by **whitneyd** » Sun Feb 03, 2008 2:44 am

Sweet. Thanks. I have it built and the power light comes on so I'll do the tach test.

whitneyd · Post by **whitneyd** » Mon Feb 04, 2008 8:10 am

Will I have to load Megatune before I can test with the jimstim?

ronchinoy · Post by **ronchinoy** » Mon Feb 04, 2008 8:18 am

whitneyd · Post by **whitneyd** » Mon Feb 04, 2008 8:22 am

Will I have to load Megatune before I can test with the jimstim?

ronchinoy · Post by **ronchinoy** » Mon Feb 04, 2008 10:52 am

yes

racingmini_mtl · Post by **racingmini_mtl** » Mon Feb 04, 2008 2:21 pm

Edited: I re-read the post.

You will want to configure the MegaSquirt with Megatune to do real testing and see what is happening.

However, You will still see the LEDs flash even without Megatune if your tach signal is the correct one for the default Megasquirt configuration. But that's the extent of what you'll be able to do without Megatune (or another tuning software).

Jean

whitneyd · Post by **whitneyd** » Fri Feb 08, 2008 1:02 pm

Thanks for the replies. I got everything to work and all my test ran perfect. My only real obsticle was my USB to serial adapter. Those things are garbage.