This 56 pin (ic402) is from my 05 Acura TSX PCM. The car went into limp mode and after doing ALL diagnostics possible with normal results I decided to remove more interior trim from my car and the first piece I pulled out uncovered the drivers side of where the PCM was located. Here's what I saw: a majorly corroded outside housing on the PCM:
Once I got it opened up I found that this chip was loaded down with corrosion and maybe even rust..Here's a pic of that:
I'm guessing this chip has something to do with throttle control but searching different variations of the inscription online has produced no results so it appears to be a proprietary ic. I'm just wondering if anyone that knows how to read PCBs would be able to give me a guess at what they thought the chip controls?!
*Also if anyone has advice on whether this damaged chips pins could be cleaned up somehow I'd really like to know! One of the pins completely disintegrated..that or it got ripped off when I cleaned the board (even tho I tried to be gentle). The pin that's missing is pin 26 and pin 17 is lifted. I've found an old tv PCB with a chip that has similarly shaped pins and thought I might try to attach one of them to the pin 26 spot. I did hold a soldering iron to that one edge of pins to try seeing if the solder would rework itself some but I was in a rush and likely didn't have the iron hot enough.I was also afraid of further damaging it. How should I go about trying to attach the pins, if it's not a lost cause all together?
Oh and here's a shot of the layout of the entire top of the board: