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Power difference with o2 sensors?

  • Thread starter Thread starter pastfast125
  • Start date Start date Jul 17, 2007
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pastfast125

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Jul 15, 2007
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Jul 17, 2007
#1
  • Jul 17, 2007
  • #1
Thanks to the previous owner my car has not had o2 sensors he whole time I've ownded it. I finally figured out where the plugs where, so now once I get em hooked up, will I notice a change in power? I know gas mileage will get better. Also will I need a harness extenstion to reach? I have long tubes and the bung is welded in just before the flange. If so where can I get a harness extension?
 
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kravamagaguy

New Member
Jul 17, 2007
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Dallas, Texas
Jul 17, 2007
#2
  • Jul 17, 2007
  • #2
try this

Yes U will need the extenders, I got the MIL deals which helped but if you go to auto zone or whatever you can buy the bosch o2's with the longer wire on them. I have long tubes and I did this. hope this helps.

also try places like www.dallasmustangs.com thats where i got my mil deals.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
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129
Jul 17, 2007
#3
  • Jul 17, 2007
  • #3
Aren't the MIL's for the secondary O2's on OBD-II cars? I believe so (I've not heard of using them on OBD-I cars).

WIthout O2's, you're running in FMEM, and on a SD car, it can run pretty good without them.

Good luck.
 
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pastfast125

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Jul 18, 2007
#4
  • Jul 18, 2007
  • #4
By SD did you mean Speed Density? My car's mass air.
 
V

v8only

Active Member
Jul 3, 2003
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Jul 18, 2007
#5
  • Jul 18, 2007
  • #5
why replace what may not be broken? You could be wasting your cash.

are you pulling codes for o2's?? My bro and I both have about 200k on our original 86 02's, and never a single problem.
 

Mr. Rustypwnz

Advanced Member
Jun 1, 2005
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indianapolis/ valdosta ga
Jul 18, 2007
#6
  • Jul 18, 2007
  • #6
I think he's saying he dosent even have o2 sensors? if thats the case then yes it will run better.
 

vristang

15 Year Member
Mar 31, 2005
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Seattle
Jul 18, 2007
#7
  • Jul 18, 2007
  • #7
pastfast125 said:
Thanks to the previous owner my car has not had o2 sensors he whole time I've ownded it. I finally figured out where the plugs where, so now once I get em hooked up, will I notice a change in power? I know gas mileage will get better. Also will I need a harness extenstion to reach? I have long tubes and the bung is welded in just before the flange. If so where can I get a harness extension?
Click to expand...

Do what ever it takes to get the O2's back in...

You should be able to find extension harnesses, start by calling the guys that fab'd the headers. They will atleast know where to direct you.


You may see some improvement in power, but the effect of adaptive fuel on wot will probably be minimal.



jason
 
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