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Old 10-10-2015, 07:12 PM   #1
Newb
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Default VVT1 err

Hi guys,

I bought and installed a mspnppro for a 2001 non MSM miata (weekend race car). Car starts and idles great with base tune. The issue is the VVT does not work ( "VVT1 err" in TS). TS shows 275* VVT angle no matter what. Note that the trigger offset is 9.0 to get 10* of base timing.

My diagnosis thus far..

-The car did run well with the stock ECU. When it was dynoed a few months ago just after a head refresh, the car made proper power.. suggesting a working VVT.

-I also have a completely stock 2003 miata that I installed the same megasquirt on and it works perfectly. TS shows 0-3* for VVT angle. So the megasquirt is not the issue. no "VVT1 err"

-I used this 2003 car to take both the cam and crank sensors off and try on the 2001 car. Did not fix the issue.

-I have not verified mechanical timing.. Is this the next step?
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File Type: msq original.msq (224.4 KB, 56 views)
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Old 10-10-2015, 08:09 PM   #2
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I have an ignition log to add
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Old 10-11-2015, 12:06 PM   #3
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No, your next step should be setting your VVT minimum and maximum angles.
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