my car is a 94 civic and I dont have to pass emissions testing
my friend has a 97 eclipse and it has to pass emissions
here in NC if its above 96 and CEL is on you cant get it passed
does that mean OBD2 started 96+?
and is my 94 civic a OBD1?
Sorry for the lamebrain questions me and a friend were trying
to clear this up.

 

For the most part yes. Some manufacturers started OBD2 in '95 (not Honda or Mitsubishi), and sometimes a '96 car is still OBD1 (the JDM H22A was still OBD1; maybe not all but at least some were).

 

but in USDM hondas it started in 95?

 

OBD1 was from 1992-1995 On Honda Civics.

Honda did in fact have OBD2 in 1995 Accord V6 models, but the rest of them began OBD2 at 1996.

Basically OBD2 uses extra sensors that OBD1 cars lack, such as an extra o2 sensor, CKF sensor, EVAP system bullcrap, etc. etc.

OBD1 Hondas and OBD2 Hondas have different plugs at the ECU, distributor, injectors, etc. etc.

Also OBD1 cars do not have computer scan pots for diagnosis and emissions.

 

thx guys for answerin my ?'s this is why i ♥ H-T

 

yes that is what it means. obd 1 (on board diagnosis) 1 has once o2 sensor and obd ( on board diagnosis) 2 has two o2 sensors