With this conversion harness you can connect a OBD1 ECU (i.E. P06, P28, P30) to a OBD2 Wireing Harness. This is helpfull when in a OBD2 car a strong modified engine is installed (or a engine swap was done) and the ECU need to be matched or tuned to this engine. OBD2 ECU's are not easy to chip or when, only with a lot of money. OBD1 ECU's are easy to chip, so this conversion harness is cheap alternative to the expensive OBD2 chipping.


Picture: OBD2A->OBD1

Please take care to order the right conversion harness for your use. OBD2a uses the plugs A,C,D and OBD2b the plugs A,B,C.