NefMoto

Hi guys,
Friend of mine recently melted a piston and spark plug broke inside cylinder 2.

A4 B5 1.8T T3 T4 Hybrid, Forged Rods, 3" downpipe, External Wastegate..

He is furious (obviously) and he is blaming the map someone did for him. Are you able to check if this can happen by the map attached?
I am really curious and looking for expert opinion on this as I don't think this can happen from the map below attached...

If it's not needed of such post please delete...

Thanks

Firstly, allways post an defenition file and also for the love of god tell us what ECU it is!
I checked it with ME7check and found an not so well defined xdf.
The ECU is an 4B0906018CG 0002 if anyone needs it...

First thoughts is that the ignition timing is somewhat agressive and that IOP hasent scaled its x axis propperly. I cant see the fueling table so god knows.

But its impossible to say if its the tunes fault without an datalogs.

Anyways you should have cheked out the datalogs yourself before you go full balls to the walls and melt a piston

What is T3 T4 Hybrid?

Probably china injectors

630cc dekas injectors....I've been told.

This is what his tuner sent him regarding the AFR..

Uneducated name for a T04E Normally a 50 trim with a .63 backside housing. Its just the normal $100 ebay junk.

Nifty a pointless screen shot.  Requested lambda based off pedal percentage, means nothing if it wasn't verified in logs. If the rest of the engine looked fine when the head was pulled then clearly it was a isolated incident. Broken injector wire, shit china clone injectors, plugged filter basket / injector etc. END OF STORY.     

File is garbage too, if you want a lol take a look at max specified load  :D :D :D. Bts fueling is stock, timing is just a %% increase 20* max advance at full throttle LOL.

Lol
If its running with stock CR id say no surprise its melted

Everything else was fine. Only second cylinder damaged

Pitting on any other piston?

isn't that a big deal?
if IOP is not done properly then that would turn off some very important safety feature.

if I recall correctly, IOP helps torque monitoring, and will pull timing(or is it fuel?) when things get dangerous.

I've definitely seen it in action. And I can imagine that the timing pull is there to keep your pistons from melting!

FYI i'm no expert here but this is my best guess

What a load of BS.

hey I said I was just guessing jeeez!
can you explain/clarify for the sake of learning??

Cool story....

I melted a piston once, but it was my head gasket that was blown.  There were a LOT of signs before it happened.  I had a demanding job and couldn’t get the time to fix it.  And being too cheap didn’t help.  Can’t imagine what you or your buddy’s car was running like before y’all melted a piston.  I would’ve thought there would’ve been signs.  Oh you’ll probably find the head is also melted.  You should upload some pics so we can all go wow. 

you want an expert opinion, a tune alone will not melt a spark plug, when you tune you should use different spark plugs as the have different heat ranges, you would want to stay away from iridium plugs pending the type of tune, me myself im not used to flashing, im old school from carbs to soldering sockets to ecu boards and even when running carbs we used different plugs with different  heat ranges, if your tuned and you run to hot of a plug yes you will destroy your piston/s.

This is all I got, hope it helps