all pr4 ecu's the same?
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Joined: Jan 2004
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From: Boston, MA
all pr4 ecu's the same?
i plan on using one with a b18b in my crx si, and i know it will have to go from obd0-obd1, and i was curious if all the pr4's were the same, even if they come from different year tegs?
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Joined: Dec 2001
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Re: all pr4 ecu's the same? (yellowCRX6)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by yellowCRX6 »</TD></TR><TR><TD CLASS="quote">i plan on using one with a b18b in my crx si, and i know it will have to go from obd0-obd1,</TD></TR></TABLE>
The B18B1 doesn't have to be installed with OBD1 electronics unless you want to do that. I have a 96 B18B1 in my 91 CRX DX and I used all OBD0 electronics: 91 Integra distributor, 90 PR4 ECU, 90 CRX Si injector with resistor box. It's a lot easier that way, but depending on your future plans (boost, Hondata, etc.) you may want to go OBD1. As mentioned the PR4 was available as 90-91 OBD0 and 92-93 OBD1.
The B18B1 doesn't have to be installed with OBD1 electronics unless you want to do that. I have a 96 B18B1 in my 91 CRX DX and I used all OBD0 electronics: 91 Integra distributor, 90 PR4 ECU, 90 CRX Si injector with resistor box. It's a lot easier that way, but depending on your future plans (boost, Hondata, etc.) you may want to go OBD1. As mentioned the PR4 was available as 90-91 OBD0 and 92-93 OBD1.
Thread Starter
Joined: Jan 2004
Posts: 50
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From: Boston, MA
Re: all pr4 ecu's the same? (VTECVillain)
well i might go boost on the stock motor, run about 7 psi.... but thats for later. ill probly go with the 90-91 and keep it obd0. Whats the comparison of the pr4 to a p74 or p75?
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kurinto
Honda CRX / EF Civic (1988 - 1991)
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Jun 11, 2004 10:16 PM
