How to know if my ecu had being chipped?

[Elliot]

I just bougth a 1989 325i and I saw what appears to be silicone around the ecu screws. I want to crack it open to check if the ECU have an upgraded chip. Any thoughs on how to identified new aftermarket chips?

Thanks
Elliot

[Snowmann]

Not like R3v's track forum is worth a fuck, but why is this in here??


and to answer your question, I believe my conforti chip had a sticker, look for a sticker

[Brew]

Get your car going about 45 miles per hour, then stick it in second gear and floor it until you bounce of the rev limiter. Stock rev limit is ~6400 rpm I think, most chips raise it to 6900 rpm

[rs4pro3]

simple take the engine to redline if the needle goes above 6500 before the ecu kicks in the revlimiter, it's chipped.

[bimmer8604]

usually u can tell if the ecu has been opened, the tabs will be scuffed up or there will be scuff marks on the ecu.

kyle