Does anyone have a photo or discription of the location of the Baro sensor. I installed the potentiometer on the MAP sensor several days ago and have been impressed with the results just need to insert the resistor on the Baro and overide the code throwing.

Also is there only certain keywords that the search recognises, it seems to be somewhat limited in its capabilities.

Best Regards,
Lucas

your sig says you have a 1/2 ton, so the baro should be on the firewall, beside the brake booster, looks identical to the MAP sensor. If you don't see it, look for the 3 solenoids at the back of the driver's side valve cover, and trace the hose from the rear of the solenoid closest to the firewall, should lead you to a tee to the EGR and the BARO. If you only see one solenoid, and don't have an EGR, then you have the HD setup and your MAP sensor acts as your BARO on startup.

Lucas something else is going on, the pot on the MAP sensor should not let you get a boost code what pins did you connect to the pot, since you are OBD-I do the paper clip trick and let us know what code you are setting, see FAQs at top of this heading for list of codes

iF DONE CORRECTLY, NO NEED FOR THE BARO. It Should Look Like This:

Its wired as QM displayed it, utilizing the pot as a voltage divider not as a current limiter, which surprises me there is any debate between the diagram QM posted and just putting the resistance in series as shown in other post, my EE background tells me that the series thing is not quite the right way, even though it works. I havent had time to pull codes, in the midst of dead week / finals week, hopefully this weekend I'll have some play time and further investigate the SES code throw.

Regards,

Lucas

The dwg caught my eye also since I was trained as a turbine mechanic and not electrician decided to see if someone else with more electrical background would weigh in.

I went to a reprint article I have on the shelf, 3 pins on MAP sensor A (gnd), B (biased volt out), and C (5V in) dwg. article says 10 K pot set for 5K to double boost.

Pot across A & B with wiper leg connected to cut B leg in harness, my dwg does not show A leg cut as I think I see here, I think this is a voltage divider and not current limiter, been a LONG time since I went through USN BEE (basic electricity & electronic) school.