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Old 05-07-2012, 04:57 PM   #1
mamillscb7
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Question h22a swap

okay so i have 91 cb7 and i plan to do a swap to h22a very soon and the ecu im looking at is a ham motor sports socketed and chipped obd1 p28 vtec. will i need a jumper harness? and what is a custom base map? please help i wanna do this asap
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Old 05-07-2012, 05:01 PM   #2
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Just get a stock P13 ECU. You don't need a chipped ECU for a stock H22A, and no "basemap" is intended to be driven on. A basemap is only a generic fuel map intended to get the engine running so the ECU can be properly tuned. Driving on one can result in damage to your engine.
Without a fair amount of modification, there isn't much to be gained by tuning an ECU anyway... so you'd be wasting your money, and potentially putting your engine at risk with that ECU. You will not need a jumper harness if you do choose to waste your money on it. It will plug right in. You will need to wire a few things for VTEC and such, and a P28 won't control your IABs unless it has been modified to do so.

I've never heard of ham motorsports... it could very well just be some 16 year old kid in his mom's basement, grabbing ECUs from junkyards and soldering in the socket. Then burning a map he found on the internet somewhere. The necessary tools to chip an ECU cost under $100, and it's not terribly difficult.
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Old 05-07-2012, 05:04 PM   #3
mamillscb7
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Quote:
Originally Posted by deevergote View Post
Just get a stock P13 ECU. You don't need a chipped ECU for a stock H22A, and no "basemap" is intended to be driven on. A basemap is only a generic fuel map intended to get the engine running so the ECU can be properly tuned. Driving on one can result in damage to your engine.
Without a fair amount of modification, there isn't much to be gained by tuning an ECU anyway... so you'd be wasting your money, and potentially putting your engine at risk with that ECU.
I've never heard of ham motorsports... it could very well just be some 16 year old kid in his mom's basement, grabbing ECUs from junkyards and soldering in the socket. Then burning a map he found on the internet somewhere. The necessary tools to chip an ECU cost under $100, and it's not terribly difficult.
thank you very much
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