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Old 06-14-2010, 03:05 AM   #1
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Default MS2 Upgrade wont Start

I just finished upgrading my ms1 to ms2 using Braineack's writeup and the car wont start. I can connect to the ms and i see readings from everything except the tach. I want to say it's a problem with the input circuit, but i checked it a few times and it seems correct. The car is a 96 and I am using the 3.0.3u firmware. The map I'm using is derived from the diypnp map. Any advice would be helpful.

Log and msq:
Attached Files
File Type: msq Tune 1.msq (51.2 KB, 55 views)
File Type: msl 2010-06-13_22.28.06.msl (30.2 KB, 41 views)
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Old 06-14-2010, 05:46 AM   #2
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If you don't have a tach reading your input mods are wrong...

A picture of both sides of your board will help diagnose.
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Old 06-14-2010, 06:10 AM   #3
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Name:  mega2.jpg
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Name:  mega1.jpg
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The pullup resistor is in the shrink wrap.
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Old 06-14-2010, 09:53 AM   #4
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could you use any bigger wire?

are you getting any config errors? have you calibrated your TPS and temp sensors?
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Old 06-14-2010, 03:20 PM   #5
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There are no configuration errors. Made sure everything was calibrated and still doesnt start.

Also, the red wiring isn't as thick as it looks. The insulation is just thick. I used whatever scraps I had lying around.
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Old 06-14-2010, 04:12 PM   #6
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i really cant follow what wires go where.
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Old 06-14-2010, 04:32 PM   #7
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Think i figured it out. From the original msI install, XG1 was jumpered to XG2. From the megamanual section on the 4G63, XG2 is a ground and XG1 the trigger. It helps when your signal isn't grounded . The car still doesn't start but its cranking pretty slow so i think the battery died. At least in tuner studio i see something in the composite logger and the datalogs show a priming pulse now.
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Old 06-14-2010, 06:45 PM   #8
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Just got it to start. The jumper on XG1 and XG2 was the problem.
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