Acura Integra All Integra Except ITR

please help me identify ECU....

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Old Oct 12, 2003 | 05:58 PM
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Default please help me identify ECU....

i was at the junkyard and went to pull the ECU out of a 88-89 Integra and noticed that the ECU plug wasnt connected to anything then noticed a ECU sitting behind the seat, bonus i dont have to pull it, but closer inspection revieals that it has a gray plug terminal (OBD1-2 right?) and is a PR4 ECU.

now im a Civic/CRX guy and all my other ECU's have a date stamp on them somewhere, i dont see one on this one. the PR4 ECU would be in every non-VTEC Integra from 90-00 right? how do i identify this ECU? and how do i know if its an auto or 5-speed ECU?

oh yeah the tag reads: 37820-PR4-A11, 490-104011, ABJ

THANKS!
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Old Oct 12, 2003 | 09:50 PM
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Default Re: please help me identify ECU.... (turbohf)

PR4= 90-91 Integra LS/GS only as far as i know.
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Old Oct 12, 2003 | 11:20 PM
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Default Re: please help me identify ECU.... (mugenracer)

PR4= 90-91 Integra LS/GS is correct...obd 0
I believe the ecu is 5 speed...usually auto ecu's have higher numbers such as A51, etc. Also, the origin of this ECU is USA
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Old Oct 13, 2003 | 09:59 AM
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Default Re: please help me identify ECU.... (iH8RICERZ)

humm, i know that i have seen a PR4 in a OBD1 car....
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Old Oct 13, 2003 | 10:15 AM
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Default Re: please help me identify ECU.... (turbohf)

k, i just noticed something this ECU does NOT have a code light like the OBD0 (the one that blinks when there is a code being thrown). so its a 92-up ECU....but what year?

i will take some pics of it later...
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Old Oct 13, 2003 | 11:08 AM
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Default Re: please help me identify ECU.... (turbohf)

probably a 92-94 integra 5spd
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Old Oct 13, 2003 | 11:11 AM
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Default Re: please help me identify ECU.... (turbohf)

since its the grey plug ecu....and it doesnt have that code light..then it is obd1...either 92-93. 94+ is the DC2, I think the LS ecu from then on is the p75...


Modified by iH8RICERZ at 12:40 AM 10/14/2003
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Old Oct 13, 2003 | 10:40 PM
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Default Re: please help me identify ECU.... (iH8RICERZ)

coo thanks, will just be labled a OBD1 PR4 then...
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Old Oct 13, 2003 | 11:07 PM
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Default Re: please help me identify ECU.... (turbohf)

90-91 Integra = PR4 (OBD-0 plugs)
92-93 Integra = PR4 (OBD-1 plugs)
94-95 Integra = P75 (OBD-1 plugs)

That's how it is in my 91 Integra, my friend's 93 Integra, and my co-worker's 95 Integra.
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Old Oct 14, 2003 | 05:16 AM
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Default Re: please help me identify ECU.... (iH8RICERZ)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by iH8RICERZ &raquo;</TD></TR><TR><TD CLASS="quote">since its the grey plug ecu....and it doesnt have that code light..then it is obd1...either 92-93. 94+ is the DC2, I think the LS ecu from then on is the p75...


Modified by iH8RICERZ at 12:40 AM 10/14/2003</TD></TR></TABLE>
94+ is either a p74 or p75. they came with both ecu's.
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Old Oct 14, 2003 | 06:41 AM
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Default Re: please help me identify ECU....

Hondata.com says only 92-93 Integra LS/GS came with the PR4. Just get in contact with Hondata, they can tell you anything you want to know about Honda ECUs.
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