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Old 12-19-2010, 08:00 PM   #1
CB7Nub
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P0F ECU Info?

I'm trying to track down what this is and find some more information of this so called rare ECU. From what I've found it came on 92-95 JDM Prelude, but didn't they have P13/P12's for the H22A?

There is one Accord I'm looking at with a JDM H22A running off a P0F, it has trouble starting. What do you guys think/know of the P0F?
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Old 12-19-2010, 08:07 PM   #2
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If it is OBD1, IIRC it is from the JDM CD6 Accord SiR w/H22A
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Old 12-19-2010, 08:18 PM   #3
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Yeah it's OBD1 for sure.
What do you think of it versus the regular P13/P12?
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Old 12-19-2010, 09:53 PM   #4
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my engine comes from a CF2 SiR H22A automatic.its an OBD1 allright..as for the wiring,when i did the apexi RSM,i totally follow the P13 pinouts and it works good..personally,I dont see that much different from the P13's apart from it having extra 10ps (but then again,does it come from the ECU)..
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Old 12-19-2010, 11:00 PM   #5
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I searched briefly on Google and came up with this Honda-Tech thread about it:

http://www.honda-tech.com/showthread.php?t=2412389

If you scroll down, you'll see a mention of swapped pins A6 and A11. I don't know if this is true, but I could imagine it causing the car to run like crap if it is and hasn't been addressed (o2 sensor heater and EGR are what those pins are for...)



And does the SiR have 10ps extra? I thought all JDM OBD1 H22s had 200ps, where the US models were stuck with less (192.64ps = 190hp)
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Old 12-20-2010, 09:16 AM   #6
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Quote:
Originally Posted by deevergote View Post
And does the SiR have 10ps extra? I thought all JDM OBD1 H22s had 200ps, where the US models were stuck with less (192.64ps = 190hp)
the extra 10ps I was referring to the P13's..sorry..

since you're saying US H22's came came with 190ps,that explains what my engine is having..the tag says 'Made in USA',for what I inderstand,it was made in the States for the JDM's..I just wonder,what makes those JDM's having 10 extra ponies..
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Old 12-20-2010, 09:22 AM   #7
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I never knew the specifics. I've heard that the cams were different, and I heard that it was all in the ECU. I believe it had something to do with US emissions standards being different and more strict than Japan's. An H22 running a JDM P13 won't pass a US emissions test most of the time.
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