A1 to A4....why go obd2 motor...."??"
The car is a 1993 VTEC model BB1 HONDA PRELUDE USDM ALL ORIGINAL" ECU IS P13 H22A1.
I INSTALLED THE FOLLOWING MOTOR:
HEAD IS H22A7 TYPE R & BLOCK IS H22A4 EURO R P5M BLOCK. THE MOTOR IS INSTALLED & CRANKS WITH FUEL PREASURE BUT NO SPARK. I DONT HAVE ANYTHING BUT A 1997 H22A4 ENGINE HARNESS THAT WONT COMPLETELY CONNECT AT THE PASSENGER SHOCK TOWER" SO I NEED THE CARS ORIGINAL P13 HARNESS AND WHAT MORE ???? TO CONNECT THE CRANK POSTION SENSOR THAT THE CARS H22A1 ECU AND CHASIS DOESNT HAVE OPTION IN THE HARNESS TO CONNECT H22A4 STYLE TO
I INSTALLED THE FOLLOWING MOTOR:
HEAD IS H22A7 TYPE R & BLOCK IS H22A4 EURO R P5M BLOCK. THE MOTOR IS INSTALLED & CRANKS WITH FUEL PREASURE BUT NO SPARK. I DONT HAVE ANYTHING BUT A 1997 H22A4 ENGINE HARNESS THAT WONT COMPLETELY CONNECT AT THE PASSENGER SHOCK TOWER" SO I NEED THE CARS ORIGINAL P13 HARNESS AND WHAT MORE ???? TO CONNECT THE CRANK POSTION SENSOR THAT THE CARS H22A1 ECU AND CHASIS DOESNT HAVE OPTION IN THE HARNESS TO CONNECT H22A4 STYLE TO
The simplest way to get this working right would be:
Install intake manifold including fuel rail and injectors etc. wiring harness including resistor box, distributor, and all sensors that were originally on the 1993 engine. Plug into cars harness as stock, and use the original ecu. It will not be the exact factory tune for that engine, but it will run fine. To get it running the best would involve an OBD1 ecu that is tunable, and a custom tune.
The only thing that will be odd, if you have a crank position sensor on the oil pump, it will not be used, you will be using the stock setup that reads from the distributor.
Install intake manifold including fuel rail and injectors etc. wiring harness including resistor box, distributor, and all sensors that were originally on the 1993 engine. Plug into cars harness as stock, and use the original ecu. It will not be the exact factory tune for that engine, but it will run fine. To get it running the best would involve an OBD1 ecu that is tunable, and a custom tune.
The only thing that will be odd, if you have a crank position sensor on the oil pump, it will not be used, you will be using the stock setup that reads from the distributor.
And injector size and flow in regards to the ecu is why I suggest using the stock manifold instead of the Euro-R. I was providing the simplest solution to fixing this, with what the OP may still have on hand.
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