alright i got a 91 hatch si with a b18a1 but everything is pre-obd or obd0 i believe...im running a chipped pr4 in it right now(no rev limiter so ill prolly blow it up) only becuz its the only cheap pr4 i found...i also have a pr3 from my b16a that i used to have in it...i havent tried that with the new swap yet....and then the pm6 from the d-series motor...which when i hook that up...it runs at like 10volts...i dunno y...

so im wondering if i should keep using the pr4 which is for tegs with obd1...which clearly i dont have...or use the pr3 which is similar but i dont have vtec or plan to either...helpp

 

the PR4 your using is pre-obd, OBD1 ecus will not even plug up in pre-obd vehicles.

Just keep using it or get another pre-obd PR4 from a 90-91 Teg thats not chipped.

 

the pr4 is not PRE obd... its obd0. Pre OBD is carburated pre 88 civic/crx's

 

the "correct" term sir is 'Pre-OBD', just soooo many people refer to it as "OBD0" which is not the correct term but means the same nonetheless.

 

alrighty....think i can a 91 teg ecu at a junkyard?

 

eBay or junkyard or google