PR4 ecu anyone has in a crx

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

PR4 (90 91 Integra LS,GS) ECU

Actually, the PR4 is used in all 1990-1993 B18A equipped Integras. Even though the plug style changed for 1992, the PR4 designation stuck. 1994-2001 non-VTEC Integras use the P75 ECU. This designation stuck despite the change to OBDII in 1996.

daniel91civ said:

pr4 ecu is for a 90-95 itr ls b18a1 are you running it with any other engine

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y do u ask the most retarted questions? do a search before u post then ud know that a pr4 is from a ls integra