I have two ECUs I need info on. one is a n333 88 t2. that I was told has a chip, I'm not sure what I'm looking for. There's one part that looks different than the others and if it is chipped is there any way to know the specs? The other is a N340 jspec I found this info 88 - 91 ( N340 ) - Rev Limit 7500 - Made By Mazda
88 - 91 ( N340 ) - No Rev Limit - Made By Mazda and its for a manual. Anyway to tell about the Rev limit? if that info is correct. Thanks for any input

 

the stock chipset doesn't use an adapter block, so i would have to say yes. never looked under the sticker of a stock chip though to see if it looks like that.

 

I took the sticker of the other ecu I have, its the first picture. Any idea on what the adpator block does?

 

doesn't removing the sticker on those chips and exposing them to light typically erase them?

 

It also looks like the DIPP socket the chip is plugged into has some bad solder joints that need to be addressed.

 

got me? I know nothing about computers.

The solder is good. The socket/adpator goes thru the board and solder on the other side, it looks like it's floating but there are pins in the center going thru

 

The EPROM (Erasable Programmable Read Only Memory) chip is erased by exposing it to intense UV radiation. Ambient light is not strong enough to cause erasure. It would probably need to be exposed to natural sunlight for weeks to cause any erasure.

 

Anybody else?