pr4...do u mean pr3? I'm pretty sure there's no such thing as a pr4. There's pr3 n' pw0. And there is not 90-95 ITR. Rephrase your question cuz i have no idea whut you're asking
y do u ask the most retarted questions? do a search before u post then ud know that a pr4 is from a ls integradaniel91civ said:pr4 ecu is for a 90-95 itr ls b18a1 are you running it with any other engine