• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

PO171 case help

BTW,
1. I forgot to mention that as soon as I connect the sensor to the PCM (while scope connected), It's voltage gets cut in half or more.
2. The brake booster check valve in GM cars is different from what they call a "universal" valve in almost all store (for about $6-12), get the AC Delco bigger one ($20-35). See pics below, black is OEM while white is cheap napa universal one. The vacuum hose that comes from the manifold to the booster is about double the size on the white valve.
3. Attached are pics for the final O2 sensor simulator circuit.






 


I don't have anything to add, but would love to know whereabouts you are. I'd love to have someone like you, to help with the electrical stuff!
 
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