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Old 11-05-2015, 10:00 PM   #10
thambu19
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Join Date: Aug 2015
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Garage
Thanks @steve99 for the table. So I do not have OFT or any other equipment to log data. Well as of now atleast.
What I would like to do is first log data and later start fiddling with cals.
So after a flash the cams are sent to lockpin/endstop until the cam sensor encoder edges are learnt.
When the cams are timed in the plant they set it to appropriate timing and when the engine starts up the first time it learns the position of the cam encoder wrt crank encoder and from now on the ECU can keep account of chain/belt stretch as the engine wears in. Most chains stretch most in the initial few thousand miles and then it does not stretch a whole lot. The issue is when we reflash the chain stretch information is lost forever and the cams are not exactly where they were set before the stretch so you may find that the VE adaptions are slightly different before and after first reflash of the car. Okay all of this is treu but not sure if this applies to this particular engine if subaru has a unique way of handling it.
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