Whats the difference between a 94 1.5 CX engine harness and 94 Si engine harness?

I know that the si engine harness is a vtec and has an oil pressure and vtec wires but what else?

I dropped in a 94 jdm sohc vtec(d16z6)using the stock cx(1.5l)engine harness and cx ecu.

Now the car seems like it running too rich.Plugged in an 93 p28 ecu and it still runs rich

 

4 wire o2 is also different.

 

i just did a swap today I have a jdm d15b with 29k miles on it. well its throwing codes havent even ran it yet I got to find a wire to see what codes its throwning. what wire do you use or is ther a special connector for that?? anyways i used my stock cx harness as well and I have to find a subharness for that but I am not sure if mine is running rich or not havent drove it yet to find out what codes its throwing. but I think its just that missing vtec clip. I am using a jdm p70 ecu that came with the motor as well. good luck.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SVOboy &raquo;</TD></TR><TR><TD CLASS="quote">4 wire o2 is also different.</TD></TR></TABLE>

I read somewhere that the 4 wire o2 sensor but my stock cx was a 1 wire and the jdm d16z6 is also a 1 wire sensor.

No engine check lights.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Markb16a &raquo;</TD></TR><TR><TD CLASS="quote">i just did a swap today I have a jdm d15b with 29k miles on it. well its throwing codes havent even ran it yet I got to find a wire to see what codes its throwning. what wire do you use or is ther a special connector for that?? anyways i used my stock cx harness as well and I have to find a subharness for that but I am not sure if mine is running rich or not havent drove it yet to find out what codes its throwing. but I think its just that missing vtec clip. I am using a jdm p70 ecu that came with the motor as well. good luck.</TD></TR></TABLE>

I'm still using the stock cx(1.5L0engine harness and stock cx ecu.
I will be getting my car towed back home from the shop soon.
I will be getting an 92-95 ex or si engine harness and ecu so we shall see

 

Can anyone comfirm if the d16z6 has a 4 wire o2 sensor or do I need to add extra wires to the cx engine harness to get the z6 to run right???

 

the d16z6 is a 4 wire o2 .. u also need the vtec pressure switch plugs and vtec solinoid... if u get the d15b ecu it only uses a 1 wire o2

 

my 95 cx came with a 4 wire o2 and i dropped a d16z6 in it and it runs fine

 

93-95 cx came with 4 wire o2. you can run your 94 cx harness but you need to wire up vtec and knock for the b16. depends on what ecu you run

 

My 94 CX came with a 1 wire o2 sensor.

The Jdm d16z6 I have also came with an 1 wire o2 sensor.

 

My '94 CX also has a 4-wire O2 sensor, which confused me because all I've read online is that it only has a 1-wire O2.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CivicSpoon &raquo;</TD></TR><TR><TD CLASS="quote">My '94 CX also has a 4-wire O2 sensor, which confused me because all I've read online is that it only has a 1-wire O2.</TD></TR></TABLE>


Strange because I'm looking at my stock cx engine harness and its only 1 wire.

I double looked over everything I could think of to make sure its all plugged in to the right spots.

It seems to be running super rich and fouls up the o2 sensor and plugs pretty quick.

 

My 93 CX also came with one wire . Oh well.