Following pics scanner plugged into my car after short town run then left standing for 1/2 hour before i remembered to get the camera out.
U581 from e bay £60/70 plus cheapo 16pin to 38 pin adaptor £10.
Sys 1 and 2 using ho2s means engine and cats up to temp as now operating in closed loop ie o2 sensors controlling the fuel mixtues.
St and lt i think is fuel trim and is corrections applied by the ecu following info from the o2 sensors
Map manifold absolute pressure
U581 from e bay £60/70 plus cheapo 16pin to 38 pin adaptor £10.
Sys 1 and 2 using ho2s means engine and cats up to temp as now operating in closed loop ie o2 sensors controlling the fuel mixtues.
St and lt i think is fuel trim and is corrections applied by the ecu following info from the o2 sensors
Map manifold absolute pressure
Last edited: