i have a 97 civic dx with a 95 gsr i have had it in for about 8 months now. i never hooked up the knock sensor i need to know where the sensor plugs into the ecu at does ne1 know or have pics 2 show me. i also wanted to know how u can read the codes for my car it obd2 car but the motors obd1 idk how 2 read them do i have 2 make a harness if so how would i. i also have a surge at 1500 rpms it only when i hold the gas right a 1500 it fine below it and above it. i clean the idle air control vave and i also dont have a cold start it wont adle high it stays lower n then when it warmed up it goes back 2 a regular idle ar like 700 to 800 plz ne ideas would help thanks

 

Sounds like everything you need is here: https://www.honda-acura.net/forums/s...d.php?t=179419

Best of luck to you!

 

Do you know what ECU your car has? Since it's a swap it could have a variety. Many of the Honda ECUs don't even have a knock sensor circuit board in them, so it might be useless to connect it. If you don't know what ECU you have it's under the front passenger carpet on the backside of the metal kick panel. Should have a label with a code on it, with a PXX in the middle of one of the codes.

 

If he's running a GSR motor, he would need the p72 in order to control the IAB setup, which does utilize the knock sensor.

If he is running some type of modified ECU for tunning then it could be almost anything.

 

about these obd2--> obd1 conversions

I know in Jersey at least, all 96 and up obd2 is required to pass emissions inspection; they just hook it up to the computer (obd2) and if the check engine light is on, or if they can't hook it up, you automatically fail

So I just want to know how you get it to pass, unless the interfaces are the same but I didn't think so but maybe they are

 

Moved to Engine Swaps.

I would expect NJ to have the same laws regarding swaps as California... that the swapped motor must be the either the same model year as the chassis or newer... and that all the emissions equipment for the model year of the swapped engine must be installed and functional.

If that's the case, then the only smog legal options are:
a) Swap in an OBD-2 motor that is the same year or older than the car... or
b) retrofit all of the OBD-2 emissions sensors and evaporative emissions equipment.