pr4????
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Seagull Management
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Re: pr4????
PR4s are '90 - '91 only and OBD0. '92 - '93 USDM Integras (except the GS-R) used the OBD1 P74 (which you can use) or like Deetz said an OBD1 P75 from a '94 - '95 Integra.
#4
Crazy Honda Guy
Re: pr4????
^^^ Not correct exactly. The 92-93 Integra RS/LS/GS are ALL PR4 obdI ecu's. Oh yeah, i am personally running one in my 1996 Civic hatch with OBDI conversion running a B20Z
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Crazy Honda Guy
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Re: pr4????
^ correct. My 93 DA was a PR4 OBD1. I know for a fact because I bought a shell that was a 91 and it was OBD0 and I went through hell trying to find that ecu because all I had was the OBD1. I ended up buying a conversion harness.
#12
Crazy Honda Guy
Re: pr4????
90-91 had a PR4 OBD0 ecu
then in 92-93 all Honda/Acura's went to OBDI, non vtec ecu was still called a PR4
In 94, here in Canada at least, they were changed to P75, i pull one of these also. To date i have never seen a P74, but i don't doubt there is one
My info is 100%, i work for Acura and deal with this stuff all the time!
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Seagull Management
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Re: pr4????
Thank you. I knew the DA integras switched from a OBD0 to OBD1 in '92. When I said I don't see many OBD1 DA Integras I probably should have clarified that a little further. I actually hardly see any DA Integras. Most of them have been junked at this point, the New Brunswick salt does quite a number on quarter panels and rockers. The list of ECU codes I have came from D-series.org, I think, i've had it for years. Its entirely possible theres an error in it (almost definately based on your info)
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