TRA and FRA self adaptive

[atgsh]

What that is the mean of TRA and FRA self adaptive parameters
I have TRA 80 and FRA - 8
I try to adjust my LPG

[Boris]

What that is the mean of TRA and FRA self adaptive parameters
I have TRA 80 and FRA - 8
I try to adjust my LPG

This parameters are long and short term fuel trims. Basically these are fuel corections (in a long term, and a temporary ones) done by ECU in order to achive 14.7 fuel stochiometric mixture (lambda factor 1) using oxygen sensor (lambda sensor). You can find more explanations on the net

AFAIK fuel trims errors are often problem on LPG conversions.
TRA 80 an FRA -8 does not sound OK

[oem]

You have rich mixtures on lpg. The best choice is reset adaptation. Driving on petrol for 10 km at part throttle (up to 80% throttle). Working at idle for 15 min on >80C engine temperature.

Look adaptation values and then adjust lpg with keep the same values.