Checking for ECU tune - List of good CVNs for CALIDs?

[Compelica]

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]

Originally Posted by Compelica

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]

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

[Compelica]

Originally Posted by steve99

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.

Originally Posted by tomm.brz

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]

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]

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

[Compelica]

Originally Posted by tomm.brz

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.

Originally Posted by steve99

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]

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

[Compelica]

Originally Posted by tomm.brz

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]

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

[Compelica]

Originally Posted by tomm.brz

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]

too few data, not even Engine speed.. sorry

[Compelica]

Originally Posted by tomm.brz

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]

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