[Eurasianman]

This was posted on another site.

Posted by: BRZSTI On: 10-12-2012 11:40 PM

The cricket sound is not damaging to the engine, it's just the spool valve inside the high pressure fuel pump. The tsb replaces the fuel pump itself, but I'm not sure the what modification is made to the new pump to make it quieter.

OFFICIAL REFLASH CEL UPDATE

On Wednesday I had are district service manager come to our dealership so I could do a REFLASH on a brz that has a CEL for the valve timing, as I have talked about previously. I drilled him with questions lol. This is only the SECOND brz REFLASH to be done in Canada this far. The dealerships in canada have no access to the REFLASH files, because it's still in it's testing stage and he carried the file on a USB stick in which I was instructed not to copy the file to our diagnostic laptop. It's all still hush hush. Apparently this file has the ability to fry an ecm. The preliminary success rate is like 90% of ecms take the reprogram just fine, but they still don't know why the other 10% fail. We had a back up ecm here just in case of a failure. Also, this problem is being handled 100% by Toyota, no subaru involvement whatsoever! Subaru is at the whim of toyota figuring this out. I was also told this is being kept so secret because only subaru diagnostic equipment can do this R EFLASH and the Toyota equipment hasn't figured out how to make it work with there's. Hence the delay delay delay. The reflash expands the parameters of time for a oil control valve to move within the cam gear(s). This valve is sticky/slow moving and your going to hate what causes this but my DSM says its due strictly to not breaking these engines in hard enough, but is still somewhat under investigation. The 4000 rpm limit i think is bs anyways, im a tech and i set my limit to be like 6200 rpm and i have not had a problem. That's how a boxer engine should be broken in. This isnt any offence but this cel brz is driven by an older guy and when i asked, he followed the 4000 rpm rule in an AT of all things meaning this car never seen any rpm. the new diagnostic procedure up to date is:

1. Reflash ecm in vehicle, success means it's good, but CEL or fryed means step 2

2. Replace ecm and reflash again. Success means it's good, but CEL still on step 3

3. Replace all 4 cam sprockets.

Now you can see why this has been such a media and information gong show. Sprockets being replaced first then ecms, Toyota running the show and they can't even use there own equipment. Bulletins being put out then taken down. Here's where the confusion lies. It took me one on one with Subaru upper management just to get this much information. I personally believe the reflash only hides the cam sprocket not operating to peak performance and should have cam sprockets replaced regardless. But you didn't hear that from me, that's just one technicians opinion :P lol

Thanks for reading! I will have some other info regarding this problem as well as other concerns up soon.

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