TunerPro User Forum

Tunercat shows a percent rich in two tables. %Change To Fuel/Air Ratio Vs. Cool. Temp. at WOT and %Change To Fuel/Air Ratio Vs. RPM at WOT. You have to add the two values together for the corresponding RPM to get your total percent rich. 14.7/(1+value from first table + value from second table) eg. ...

Acquisition -> Edit Definition check to see which macro is your monitor command, then modify the "reply" of that commands as such: payload offset + payload size should be equal to body size + 1. if not, change the body size to payload offset + payload size + 1. Did this and now it works l...

I am having the same problem with my 7730 ECM. I also tried it on my pickup that has the 8625 ECM and the data spikes about once per second. I am using a Tunercats Y cable with USB converter that has the connectors for all OBD1 including the 95 LT-1. I downloaded a free trial of datamaster and it wo...