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-   -   Checking for ECU tune - List of good CVNs for CALIDs? (https://www.ft86club.com/forums/showthread.php?t=140955)

Compelica 06-16-2020 03:17 AM

Checking for ECU tune - List of good CVNs for CALIDs?
 
I'm trying to see if my car came with a tune. Reading posts especially from @steve99 says that I will have to compare my CALID and CVN both which I can get from an OBD2 tool. If the CVN is not from a known good value it indicates that the ECU has been tuned/tampered.

The only problem is - does a list exist of all CALIDs to known CVNs? Tried googling to look for one but there isn't any...

steve99 06-16-2020 05:27 AM

Quote:

Originally Posted by Compelica (Post 3341402)
I'm trying to see if my car came with a tune. Reading posts especially from @steve99 says that I will have to compare my CALID and CVN both which I can get from an OBD2 tool. If the CVN is not from a known good value it indicates that the ECU has been tuned/tampered.

The only problem is - does a list exist of all CALIDs to known CVNs? Tried googling to look for one but there isn't any...


i dont have list


but if you read the tune from ecu you can compare it to a stock rom

tomm.brz 06-16-2020 07:34 AM

or do a log with valuable data we should be able to spot a stock tune

Compelica 06-16-2020 12:55 PM

Quote:

Originally Posted by steve99 (Post 3341420)
i dont have list


but if you read the tune from ecu you can compare it to a stock rom

I don't have any specialized tools though, only a generic cable for use with Techstream and an Bluetooth OBD2.
Quote:

Originally Posted by tomm.brz (Post 3341427)
or do a log with valuable data we should be able to spot a stock tune

What would I need to log? I can put it here :)

tomm.brz 06-16-2020 03:50 PM

usually cams get changed, also afr target/actual, and maf voltage and mass air flow g/s
we can look then if they match the stock tune

steve99 06-17-2020 12:21 AM

If you have a friend with same ecu calud you could check CVN against that if its stock

Compelica 06-17-2020 12:39 PM

1 Attachment(s)
Quote:

Originally Posted by tomm.brz (Post 3341522)
usually cams get changed, also afr target/actual, and maf voltage and mass air flow g/s
we can look then if they match the stock tune

@tomm.brz I've attached a zip of the log here, from a warm start towards a highway and traffic congestion near the end. Appreciate it :)

I could only log from Torque though, which I could only get the AFR target / actual, MAF (g/s) and timing advance.
Quote:

Originally Posted by steve99 (Post 3341661)
If you have a friend with same ecu calud you could check CVN against that if its stock

Just realised that Torque does have an option to view the CVN, but when it's connected to my car the option is goes missing.

tomm.brz 06-17-2020 04:24 PM

can t look at it from phone
you should upload the csv to datazap. me thanks

Compelica 06-17-2020 11:29 PM

Quote:

Originally Posted by tomm.brz (Post 3341839)
can t look at it from phone
you should upload the csv to datazap. me thanks

Uploaded here:

https://datazap.me/u/compelica/norma...data=0-1-2-3-4

tomm.brz 06-18-2020 02:50 AM

There is small check to tick, your kept the log private
so please go to Edit log and make it public

Compelica 06-18-2020 03:14 AM

Quote:

Originally Posted by tomm.brz (Post 3342000)
There is small check to tick, your kept the log private
so please go to Edit log and make it public

Thanks for pointing it out - changed the setting to Public now.

Also, calibration ID is ZA1JF00A if that helps.

tomm.brz 06-18-2020 04:05 AM

too few data, not even Engine speed.. sorry

Compelica 06-18-2020 05:20 AM

Quote:

Originally Posted by tomm.brz (Post 3342014)
too few data, not even Engine speed.. sorry

Sorry @tomm.brz I can get you the other info... I was under the assumption you needed only those columns that you stated earlier.

Is there anything else you require other than engine speed?

tomm.brz 06-18-2020 08:50 AM

intake and exhaust cam will help
also flkc and knock corr, usually it gets reduced tova minimum of -0,7 instead of -1 as minimum correction

injection angle if available, try to put many things, i dont know how torque works


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