Im putting a 1st gen b16a into my del sol and was wondering if the the 1st gen b16a had primary and a secondary o2 sensors or if one is something else. Thank you

 

The engine is obd-o can i just disregard one of them or will it need to be wired up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lsdelsol &raquo;</TD></TR><TR><TD CLASS="quote">The engine is obd-o can i just disregard one of them or will it need to be wired up.</TD></TR></TABLE>

If your keeping your car & ECU OBD-1, then you will only need the primary O2 sensor (the one before the cat). If your converting the car to OBD-0, then you will need to wire it up however the OBD-0 ECU works...

 

Im staying obd-1 but if im not mistaken they are both before the cat. Thats why i was wondering if one was a primary and one was a secondary.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by man with one cam &raquo;</TD></TR><TR><TD CLASS="quote">obd1 has one and 0bd2 has two</TD></TR></TABLE>

He is saying his motor is OBD-0 and it has two O2 sensors before the cat. He wants to know which one he should keep. I would probably keep the front one, or whichever one had 5 wires on it. If both have 5 wires (or the same number of wires), then I would just keep the one that was in or just past the collector of the header...

 

damn, nothing hard about this one.

obd0 ecu being used (doubt it but hey) single 1 wire o2

obd1 ecu being used (most likely) single 4 wire heated o2

obd2 ecu being used (less likely, but possible) 2 4 wire heated o2s, one upstream, one downstream, upstream being closest to the cylinder head and being the primary. both will be needed to keep a code from being stored and the CEL from illuminating.

 

Thanks that helped. Sorry i just couldnt put it into the right words.