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This is a discussion on Which catalytic converter to use? (obd2 motor, obd1 ecu) in the HYBRID -> EG-EK / DC forum
I'm looking at getting a Carsound / Magnaflow cat. I'm using an obd2 b18c1 (97 GSR) with an obd1 p72 ecu (95 GSR) in a 95 civic. My stock 95 civic cat has no O2 sensor in it. A 95 GSR cat has one. A ...
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|10-20-2008, 04:22 PM||#1|
Which catalytic converter to use? (obd2 motor, obd1 ecu)
I'm looking at getting a Carsound / Magnaflow cat.
I'm using an obd2 b18c1 (97 GSR) with an obd1 p72 ecu (95 GSR) in a 95 civic.
My stock 95 civic cat has no O2 sensor in it. A 95 GSR cat has one. A 97 GSR has 2!!
Will I have to use a 1-sensor cat with that ecu to prevent the check engine light from appearing? If so, would I need to wire it into the obd1 p72 ecu?
Also, If I used the sensor-less cat, could I bypass the emissions part of the ecu and avoid a check engine light?
|10-26-2008, 12:09 AM||#2|
OBD1 ecu uses only 1 O2 sensor, the one before the cat in the manifold/header. That's what makes your decision, as that's what decides if you throw CEL's or not.
Use the sensorless cat, if your ecu is OBD1, you wont' throw any CEL's.
|10-26-2008, 11:35 AM||#3|
You need a o2 sensor hooked up regardless when using a stock ecu to prevent a check engine light.
Some o2 sensors connect on the front of the manifold but GSR headers have them on the top of the collector. If you have a catalytic converter with 2 oxygen sensor openings just plug the bung after the catalytic converter.
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