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

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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
 

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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.
 

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daniel91civ said:
pr4 ecu is for a 90-95 itr ls b18a1 are you running it with any other engine
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
 
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