benleonheart

Well,

I basically rescued my car from junkyardom, imported it to my country and got it up and running:

Thing is...

While I was checking the engine bay for loose connectors and stuff, I found out that the s197's have 4 O2 Sensors, 2 at the back (blue connectors)
and 2 at the front (green connectors) one of them is right before the passenger's cat, and the other one's on the driver's header...

Both of the green sensors where just dangling around, haha...
So I just hooked the passenger side one (removed the battery for easiest procedure)
But, when I look for where to connect the O2 sensor on the driver's side, I find nowhere to connect it to?

It basically looks like this:

Conclusion:

I have 3 sensors plugged up correctly

Problem:

1 is still on the loose

Question:

WAT DO?


Thanks in advance, guys

benleonheart

Um...

Probably you guys don't understand the question or haven't actually seen behind the engine...

Does the connector for that O2 sensor come with the harness? or does it come out of the block, etc..? I really don't know... its a used harness and it might be missing...

Can anyone correct me if I'm wrong, and point me the right way?

hondhunter

that other end is in the tranny harness. you have to look hard with a flash light down that side and on top of the trans.. youll find it, its gotta be there..

SpartaPerformance

It's actually tucked up high and connected with a plastic tab between the engine and transmission. If you follow the link I have look at the 6th picture it's in that area.

Driver O2 harness

benleonheart

I'll check really really well ... its bothersome that I can't find it :/

Just anonther question...

Does having 1 unplugged O2 sensor affect my performance/mileage?

Can I bypass all of them and have it NOT affect my performance/mileage?


Thank you...

tx_zstang

Check your engine harness; there is supposed to be a similar plug there for it. It may have gotten cut off, or may be dangling on top of the transmission or behind the engine.

..you MUST have the front 2 sensors hooked up. It'll run like crap otherwise.

benleonheart

Ugh >.<

benleonheart

Well, I searched and searched and I can't find anything... maybe it was snapped/cut off by the noob mechanic guys...

Is there an under-the-hood picture that might illustrate me where it is?
I already saw under-the-car pictures but an under the hood one would be great...

Thanks

hondhunter

doubt itll run..wout it. they read the air coming out. so if ones not plugged it aint reading itll make your o2 monitor not ready and not tell the pcm the correct a/f ratio

hondhunter

hate to say it...i pinch one in a bell housing on a 04 gt i was doin a clutch in...maybe thats what happened