1997 Buick Park Avenue Ultra 3.8L SC P0171 code

Question

Hi

I was talking to other tech he mentioned that there is climate control and vent that works on vaccum there could be leak. I don't have complete drawing for that device which is at driver side right behing the OBD II connector and that makes noise for changing the flaps from heater to cooler. If someone got the drawing can I get it.

Thanks

Answer 1

No there is none you are electronic vent control, It uses a electronic vent control module, From your vehicle if this was a vacuum leak it will be a consistent code, you have a intermittent stumble, Your problem reside with the fuel,tey the fuel pump relay just swap it with the A/C and go from there