MAP sensor not registering a reading?

I just got my LS1 Swapped RX-8 on the road yesterday and did a little logging with the VCM scanner. It was running super rich in open loop but once it warmed up to closed loop it leaned out as the O2 sensors took over commanding like -33% fuel. So I was trying to get to the bottom of why it was running super rich and I noticed that my stock MAP sensor was not reading at all during the short drive. Like, no little pointer on the MAP gauge on the dashboard, and just filling up the 15kpa row on the histogram as it went thru the range of RPMs. I did some basic trouble shooting, checked for 5V at the sensor, checked the signal pin at the PCM, made sure it wasn't plugged, etc. I have a new MAP sensor on it's way from Amazon to try, but in the meantime, can anyone explain this? Much thanks.

Delete the channel, re-poll for supported parameters in the scanner and add the channel back in. See if it starts working again.

Quote:

---

Originally Posted by 5FDP

Delete the channel, re-poll for supported parameters in the scanner and add the channel back in. See if it starts working again.

---

This worked. Thank you for the helpful suggestion!

how do you re-poll for supported parameters idk how to do that or i do but dont know the lingo thanks

Click the vehicle tab in the scanner, it's in there.