Hey guys, this is my sister's truck. 1990 2500 with a 350 and a th400. We've spent the whole budget fixing other issues along the way, and on the final test drive before giving it back it killed the brand new EGR valve, which got stuck open.
I have a MOTES BURN1 programmer available, but the ECU is not modified to accept modern chips. I have an extra 7747 that I could barrow a chip from also.
Made a block off plate and used RTV for testing and it idles great now.
Now the question:
1. Should I just go buy another EGR valve? Do I need to just order it from a GM dealer to get reliable operation? Is this a 1/10,000 failure?
2. Should I buy a UV tool for blanking the original style chip and delete the original style chip to leave the EGR?
3. Should I solder a chip adapter and buy the EEPROM chips? Is that worthwhile on a truck that I am not modifying any further?
Just.... Frustrated with brand new parts failing and ready for the this thing to leave so I can focus on my own projects.
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