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B18B1 question? (confused)

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Old May 28, 2005 | 01:20 PM
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Default B18B1 question? (confused)
If the B18B1 was introduced between 92-95. Why are there 3 ecu's for it the PR4 & P74/75 if there both OBD-1? Is there a OBD-0 ecu for this engine?
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Old May 28, 2005 | 01:32 PM
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the b18b was produced through the end of the integra run. the pr4 is from the b18a, and the p75 is the obdI from 94 and 95.
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Old May 28, 2005 | 01:48 PM
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so I assume the PR4 is OBD-0? correct.
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Old May 29, 2005 | 07:18 AM
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I believe so, maybe wrong though
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Old May 29, 2005 | 09:00 AM
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the b18b was introduced in 94 until the end of the gen 3 integras and the pr4 is the Da ecu
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Old May 29, 2005 | 09:04 AM
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Default Re: (projectTeG)
well 92-93 b18a's are obd1, so im guessing you can use an ecu from a 92-93 integra on a 94-95 LS.
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Old May 29, 2005 | 10:58 AM
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Default Re: (benb18a)
90-91 was obd0 and 92-93 was obd1 and 90-93 used the b18A1 as for the ECU's, PR4 is the obd1 ecu for the 92-93...i dont know the obd0 ecu though
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Old May 29, 2005 | 03:04 PM
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there are both obd o pr4's and obd 1 pr4's
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Old May 29, 2005 | 04:39 PM
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Default Re: (sexyblack93lude)
Is there any difference in the map on a pr4 and a p74?
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Old May 29, 2005 | 07:38 PM
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I figure there were both OBD-0 & 1. For now my cuz is wiring up the B18B1 to his PR4 in the EF.
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Old May 29, 2005 | 08:24 PM
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i heard that if you use a b18b1 and an 90-91 ecu or 92-93 ecu you will burn up the b18b1 injectors because of a resistor box or something? is this true?
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Old May 30, 2005 | 01:13 PM
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btt
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Old May 30, 2005 | 05:13 PM
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Default Re: (som1_2race)
Just do a head swap,b18b head to a b18a bottom.You shouldnt run into any problems this way.But well im not sure as to what you are trying to do??
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