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Old 04-19-2014, 01:18 AM   #1
Eleanor_cb7
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fully tunable a6 ecu?

Hello, new guy hear. I'm going to jump right in and ask away. First I just picked up a 92 accord of with a f22a1 for $500 with 270xxx miles. Now I can get a complete a6 from a 93 ex for around $350 ( I want an extra block and etc) with 135xxx. But I was reading about ecu's and think I need a((pt3-o6) or a (p72))f that's even a real one? The reason for all this is my car is a standard and from what ive read the a6's where only autos. So how could I make this work? And the reason for the title is I want to boost it so I want full control of tuning. Thats why I want the extra block, head, etc. And please don't tell me swap to a whatever, I like the f series and would love to push 400+ hp out of one. Lets forget about money hear also that's not a problem just the time.
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Old 04-19-2014, 01:24 AM   #2
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Too many f series fans to try and persuade you another way. From what ive been reading, its one of the best honda motors to boost.....and for pretty cheap too.
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Old 04-19-2014, 11:51 AM   #3
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I'm not sure where you read that F22A6s were only automatic; in any case it doesn't matter. A P06 would be the least expensive route for a tunable ECU, the P72 is generally more expensive as it came from an Integra GSR. Good luck with whatever you build.
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Old 04-19-2014, 12:00 PM   #4
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Old 04-19-2014, 11:23 PM   #5
Eleanor_cb7
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Ok thanks for the imput guys. So the ex came with a 5 speed? And that was based off of I couldent find one with a standard. But if so is the stock ecu tunable like timing, fuel, maf and D all the above? And if so I based of a thred on the forum you can convert a auto to a standard. And for the aem ecm I don't want to spend that much because it dosent seam to be for the faint of heart and I have never done a tune before. And I want my car for street mostly.
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Old 04-19-2014, 11:40 PM   #6
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Are you at least planning on upgrading to forged pistons for your turbo build? If not boosting on a stock block is a guaranteed way to break a ring-land, it could happen instantly, after a week, or maybe a year later, but it would be a grenade waiting to go off.

For a stock (that means unmodified) motor: If the motor is an a1/a4 you will want a PT3, if it is an a6, you will want a PT6.

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Originally Posted by cloudasc View Post
Understanding Ecu Codes
37820 = Honda's ECU Part Number
Example (AAA-BCD)
AAA = Ecu Model
B = Region (A - US 49 State Emissions, L - California Emissions, 0 or J - Japan, Q - Australian, G - Europe, F - New Zealand)
C = Manual or Automatic Designation (5, 7, 9 are automatic)
D = Revision Number

The List:
PT3-A01 / 1990 / CB7 / DX / F22A1
PT3-A03 / 1991 / CB7 / LX / F22A1
PT3-A53 / 1991 / CB7 / LX / F22A1
PT3-A54 / 1992 / CB7 / LX / F22A1
PT3-A72 / 1990 / CB7 / EX / F22A4
PT5-F02 / 1992 / CB3 / EX / F20A5
PT6-A11 / 1992 / CB7 / EX / F22A6
PT6-A12 / 1993 / CB7 / EX / F22A6
PT6-A50 / 1991 / CB9 / EX / F22A6
The PT3 and PT6 ecu's are not fully tunable, there are still a lot of things that need to be figured out and tested before being considered 'fully tunable'.

Since you are planning on going turbo, your best option is to get a Civic or Integra ECU such as the P06, the P28, or P72. The only reason to go with a P72 is the built in knock sensor, otherwise, a P06 can be upgraded to the equivalent of a P28, or P72.

Since you are unfamiliar with how to tune an engine, your best to leave it to a professional, and schedule a dyno and street tune for once your build is complete. DO NOT EVEN THINK ABOUT BOOSTING ON A BASEMAP... either drive with a feather foot, like an old lady tourist, or risk blowing it up, best recommendation is to tow it.

For information on Tuning ECU's I highly recommend reviewing the information at http://pgmfi.org.
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