I have an OB1 conversion in my car.
The injector drive went out in my PCM4Less computer so I bought another Standard OBD 1 from a local guy.
Since the new computer, I get a DTC 43 fail.
I know this is the knock sensor circuit....But my questions...
Will this cause it to lock all BLM's at 128 and make the O2's constant and not bounce around like normal?!??!
What can I do to fix this, Solder a resistor or buy a new OBD1 knock sensor and plug it in.....
Thanks

 

You could do some testing to help figure out what is going on.