So I’m currently running Ceddymods on my CP9A and have wired up a GM 3 bar map sensor. I’m going to pin 75 (unused/rear o2) for the sensor output as well as using pin 92(sensor ground) and pin 81(5v ref). After changing the request ID I am able to log boost but I’m showing -8 at idle while my prosport gauge is showing -17. I’m guessing that my gauge is just off when it gets to this high of vacuum. It seems spot on from 0-15 psi. Wondering if someone knows and easy way to verify this.

Part 2 of this is logging AFR. I’ve got a prosport wideband with the Bosch 0-5v sensor with analog output (no serial or data output sadly). Was searching around and found that pin 73 could be used with a request ID 38; however, I’m not getting anything. Even with the formula just left as “x” I just get “0”. Is there something I need to change in my MUT table, ROM or am I plugged into the wrong pin? I might consider wiring the wide band to the baro input and just having a switch so I can change between the two whenever I want to log vs drive.

Any help on this would be greatly appreciated. So far all the info I have found has pertained to 7-9 which does not have the same stuff. Thank you!

 

Anyone? I figured out the boost gauge.. I’m just an idiot. The gauge shows two different units. PSI when above zero and INHG when below zero. Both are spot on consorted to my GM 3bar MAP sensor.

Really want to figure out how to log AFR with the ECU so I can start tweaking my tune.