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h22a4 obd2 in obd1 lude

 
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Old 09-05-2012, 02:06 PM
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h22a4 obd2 in obd1 lude

A little help please....
Using the resource guide here on prelude zone, I was able to find this link:
H22A into a prelude Si ..all your info is here! - Honda Forum : Honda and Acura Car Forums
Very helpful, Although my question is this. This post suggests the use of a obd2 ecu. Also in this guide it is stated that the MAP sensor on the OBD2 engine is connected to the TB.
My issues:
I am using a OBD2 ECU with a OBD1 wiring harness, my MAP sensor is connected at the fire wall, does this need to change?

How do I figured out if the OBD2 ecu I have is for Vtec or not?
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Old 09-05-2012, 03:57 PM
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Re: h22a4 obd2 in obd1 lude

no point of using obd2 ecu, just get chipped p28 obd1 with h22 basemap
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Old 09-05-2012, 07:36 PM
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Re: h22a4 obd2 in obd1 lude

get an OBD1 Si Vtec harness and swap your ECU for the USDM P13 or a Chipped P28. Swap the injectors for the OBD I H22A1 injectors, and swap your intake manifold from your old engine. Makes it pretty much plug and play.
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Old 09-18-2012, 08:11 PM
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Re: h22a4 obd2 in obd1 lude

Ok I have figured out the wiring problems.

New Problem:
I try to start car. Flames shoot out of the throttle body>>>>WTF?

My first guess, Timing is 180 out? Any other suggestions?

Any help would be great!
Thx.
Urban Prelude
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