h22a4 in a 93 si hatch questions

H22A
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h22a4 in a 93 si hatch questions

By ta72
- Mon Jan 25, 2010 4:21 am #170880 Hi people... I'm a newb here and have some questions. I have a 93 si hatch with a h22a4 in there,but need to know what type of ecu i need use. My freind has a obd1 gsr p72 ecu,but wanted to know if i could use this ecu or do i need a different ecu. please help
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By JUICE
- Mon Jan 25, 2010 4:34 am #170888 either pick up the stock ECU for that motor, or get the car tuned and have the p72 chipped to run your motor correctly.


the motor would start up and possible run on the p72 but the fuel maps and everything else would not be right and could cause some problems. good luck :thumb:

By ta72
- Mon Jan 25, 2010 4:39 am #170890 so do i need to use p28 ecu or the prelude obd2 ecu?
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By JUICE
- Mon Jan 25, 2010 4:56 am #170898 you need to convert the motor to OBD1 to run a P28 or P72 which would BOTH need chipped to run that motor
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By chrono404
- Mon Jan 25, 2010 5:08 am #170903 You will want to have either the stock ecu for the engine (P13) or get an OBD1 P28(d16z6) or OBD1 P72(B18c1) and get them tuned to run your engine.

If you just plug in a P72, dont be surprised when it runs like crap and backfires alot. They dont have the correct fuel/ingation maps to run your engine correctly.

EDIT: Juice beat me to it.
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By 92dxeg
- Wed Feb 03, 2010 6:58 am #172883 iam also new to this iam looking to do a h22a i think you could use a obd1 p13 or a p28 not two sure

By jcblessing21
- Wed Feb 03, 2010 12:43 pm #172901
92dxeg wrote:iam also new to this iam looking to do a h22a i think you could use a obd1 p13 or a p28 not two sure

if the engine is an obd1 engine then yeah but you will need a tune unless you get the jdm ecu for that motor.
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