Check engine Light on.

[pegasus_D16A]

Have a D16A6 probably came out of a 91, check engine light is on, car runs but not so good, been on for about a week now. I don't know what ecu I have as I have never had the engine light come on before.

Can you tell what ecu by engine that is in my car I am assuming is PM6.

[pegasus_D16A]

Ok so I jumped my ecu to get the code. Seems like 4 long and 1 quick flash.
so I gues code 41. My ECU is 37820-P06-CO.
What does that mean?

[turbostd]

O2 heater circut

[Dweezil]

Your useing a EG D15 ecu, not a huge deal. Are you useing the `92-`95 O2 sensor or the `88-`91 part?

[pegasus_D16A]

I believe it is the 88-91 02 sensor, I had a d16a6 engine swapped after I blew the stock motor that came with my 93 DX hatchback.

Where is the 02 heater circuit anyway? Is that the 02 on the header.

[Dweezil]

O2 sensor is usually on the header unless you moved it to the exhaust. Checked the service manual for any other fixes, could be a loose connection or a bad O2 sensor, that's it. Check the connection from the O2 sensor to the engine harness and also from the engine harness to the ECU on the shock tower.

[pegasus_D16A]

Just wondering does a faulty 02 sensor cause rough idle, seems like car is going to staal sometimes, when I come to a stop, noticed after engine light came on.

[Dweezil]

It can, but it's got to be in really bad shape. Make sure your useing a `92-`95 O2 sensor instead of the `88-`91 sensor. If you want I'll try to get you scans of the troubleshhoting guide for a code 41

[pegasus_D16A]

Sure thanks. I just talked to my buddy who works at an auto parts store.
He gave me a price for a bosch o2 sensor $62.00 cdn.
Is bosch any good?

[pegasus_D16A]

I am trying to order the part for my car. Not sure what specs to give him now.
When ordering the part should I say I need a o2 sensor for a 93 civic hatch 1.5 which is my original motor, because that is a different motor, or should I say 91 civic 1.6L hatch wich is what I currently have d16a6, or when I did the motor swap everything from my DX like the o2 sensor might have been used from my original motor.

[pegasus_D16A]

Is the NTK (O2 Sensor) the honda part?

[Dweezil]

You want the `93 DX one. I think NTK makes the oem honda ones, but plenty of people have used bosch ones with no problems.

[pegasus_D16A]

NGK O2 sensor Part#24542 for anyone interested fits 93 DX models.
This is the O2 Sensor honda uses.