White 10 pin connector...

Topic: White 10 pin connector... (Read 11163 times) previous topic - next topic

White 10 pin connector...

Reply #45 – November 14, 2008, 07:46:33 PM

That's what fixed means

No more chugging/hesitation in closed loop. Clean and smooth.

White 10 pin connector...

Reply #46 – December 01, 2008, 03:36:16 PM

Ok well im not exactly trying to dig up an old post, but i feel what im about to ask is better said in this post than a new one. V8 demon said

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-- my sensors are indeed reversed......Redid the exhaust in September of last year....Was done by a shop that had to weld in the o2 sensor bungs. The limited driving of the car this past year -- maybe 2000 miles this past year -- and the fact it ran very well while in open kept me in the dark. When it stops raining I'll swap them.

And after he fixed them....

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No more chugging/hesitation in closed loop. Clean and smooth.
__________________

Now my question is if the 02 sensors are unhooked completely (Installed exhaust myself, havent gotten the o2's welded yet) would this also make the motor choppy/hesitant under light load? It runs better under heavier loads and WOT and still gets about 23 - 28 mpgs

White 10 pin connector...

Reply #47 – December 01, 2008, 03:52:25 PM

It will affect how your engine runs, I find it hard to believe you get 28 mpg with them unhooked, Maybe I'll go pull mine!

White 10 pin connector...

Reply #48 – December 01, 2008, 03:59:46 PM

Well i bought the car in Florida and drove it back here to Tennessee where i live and thats about the mileage it got. When i bought it, the exhaust was all chopped up where it had been rusted ( the car was originally from Ohio - go figure lol) and the o2 sensor wires were cut. It drove without any major problems but it was VERY hesitant under light load

White 10 pin connector...

Reply #49 – December 01, 2008, 04:18:46 PM

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It will affect how your engine runs, I find it hard to believe you get 28 mpg with them unhooked,

If you set the car up properly, it's possible. You'd have to pay attention to what you were doing, get lucky, or a little of both. The ECU does not use the readings from use readings from the o2 sensors @ WOT FWIW. THe o2 sensors are used for varying load/rpm conditions to increase gas mileage and reduce emissions under light and moderate load conditions.

Without them and with a good understanding of the fuel system and the right components you can basically tune the car. It's gonna take some trial and error along with a code reader though (at the VERY least). Similar to changing jets on a carb if you think about it. You'll never have the versatility that the adaptive strategy coupled with the o2's will give though...

White 10 pin connector...

Reply #50 – December 01, 2008, 04:26:36 PM

well im gonna get the o2 sensors hooked back up im just trying to troubleshoot to find out why my engine is running like sh*t

White 10 pin connector...

Reply #51 – December 01, 2008, 04:35:08 PM

Like v8 said, Either tune it without them or get them hooked.
If you hook them up your car might run better. You really can't complain how it runs till you make the effort to make it right.

White 10 pin connector...

Reply #52 – December 01, 2008, 04:41:18 PM

Oh im not complaining, just trying to rule some stuff out. Appreciate the info guys.

White 10 pin connector...

Reply #53 – December 01, 2008, 06:30:39 PM

Quote from: 20thanniver-ls;245638

Ok well im not exactly trying to dig up an old post, but i feel what im about to ask is better said in this post than a new one.
Now my question is if the 02 sensors are unhooked completely (Installed exhaust myself, havent gotten the o2's welded yet) would this also make the motor choppy/hesitant under light load? It runs better under heavier loads and WOT and still gets about 23 - 28 mpgs

I had NO warning....NONE no hesitation, bucking, driveability issues....NOTHING. The car even got decent (as in 20+ HWY) gas mileage. It was dialed in rather well.

White 10 pin connector...

Reply #54 – December 06, 2008, 11:13:32 PM

I have this same problem, my orange wire seems to have been cut. Did any of you ever figure this out?

White 10 pin connector...

Reply #55 – December 06, 2008, 11:16:37 PM

So did we actually establish what this orange wire is for? Mine is cut as well, I'm just curious.

White 10 pin connector...

Reply #56 – December 07, 2008, 07:38:37 AM

Yes. It's redundant in the system and replaced by the dual grounds on each of the HEGO connectors. It's all in the thread.

White 10 pin connector...

Reply #57 – December 07, 2008, 08:22:36 AM

alright, i was reading one of your posts and it said when you connected one of the HEGO sensors the car ran different, I got a little confused and figured I just better ask...

Is it worth taking the time to ground it out?

White 10 pin connector...

Reply #58 – December 08, 2008, 07:32:40 AM

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i was reading one of your posts and it said when you connected one of the HEGO sensors the car ran different

Different issue, but along the same lines

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Is it worth taking the time to ground it out?

Not really.

White 10 pin connector...

Reply #59 – December 10, 2008, 03:58:27 PM

I'm not sure if anyone remembers the bout I had getting my car to START after my HO top end swap.

There was an orange wire, just like this...same deal. Seemed cut, I figured it broke when I pulled the intake or something and forgot to disconnect it. Don't think so though.

I NEED this wire....once I grounded it the engine started. Without it grounded...nothing at all. No sputtering...the injectors wouldn't fire I suppose, because spraying carb cleaner into the intake made it start, and run until that was used up.

Wonder why I now need it with H.O. as opposed to not needing it with S.O....