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  1. S

    Check Engine Light Help

    Ok here is the deal on the wire/pin in the manual and auto O2 harness. circuit 771 is purple / yellow stripe and is looped from one pin to another. You have to move one end of the 771 circuit, circuit 199 is not used for an auto trans it is used for a manual and that is why you get the...
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    Check Engine Light Help

    have not driven car again yet. I just got the other O2 harness hanging under the car and plugged in to test it out. Tomorrow I will remove that pin and then take it out for a drive and post results. Still have to check EGR vaccum lines also because something is not hooked up right with those...
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    Check Engine Light Help

    Ok guys here is the deal so it turns out there is a difference between a manual and auto O2 sensor harness. I took the O2 harness of my 89 vert AOD, and installed it and no more code 67. I guess that also means anyone that does an AOD to manual swap needs to switch out their O2 harness to get...
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    Check Engine Light Help

    jrichker, Thanks for the Ford factory wiring diagram manual. I have been looking it over and so far found that there is no difference between a manual and auto EEC harness, nor is there a difference between a manual and auto O2 harness. Lots of great information. I will update on what I find...
  5. S

    Check Engine Light Help

    Ok guys here is an update I took the canP harness/switch (known good) off my 89 vert, I hooked my EGR back up, I also put the AC pressure switch back on and hooked it up. I cleared the computer. Cranked the car and let it run for about 15 minutes and when I pulled the codes I got KOEO 67...
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    Check Engine Light Help

    Does anyone have a better wiring diagram for the O2 sensor harness for both the manual and auto? I was told that they are different and that the wrong O2 harness could be causing the code 67, and could cause the computer to ground out internally and I am not sure which O2 harness I have. All I...
  7. S

    Check Engine Light Help

    Thanks hotcobra03 and HISSIN50 for the time and help, sorry I have not added any new responses. I got the AC pressure switch from all my AC stuff I took out and hooked it up and cleared the computer and it still shows code 67. So it is either the NDS switch on the trans or the computer harness I...
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    355s vs. 373s

    I am running a set of 4:10 gears in an 89 LX vert with an AOD that is stock except for the exhaust. I cruise at 2100-2300 at 65-70 on the highway and get around 18-21 mpg. I drive the car 40 miles a day.
  9. S

    Check Engine Light Help

    When key is on orange is 12v and pin 30 is 12v. if you jump orange and wh/pk still shows code 67. I am about :fuss: :bang: feed up with this one code. I am going to wait until I can get a ac pressure switch to plug in because the nss only allows the the car to start in neutral or park and the...
  10. S

    hanging idle? wtf 1600rpm!!

    Check this post http://forums.stangnet.com/695720-idle-hangs-1500-rpms.html#post6828585 it has some good information. Hope it helps.
  11. S

    Check Engine Light Help

    hotcobra03, I will not be able to check anything until Sunday at the earliest but I will post what I find. I am beginning to think that maybe since I have the ac pressure switch disconnected it could messing with code 67, yes the reverse lights work fine and the car only starts in park or...
  12. S

    Check Engine Light Help

    I do not have any ac input to check there is not ac equipment or switches installed except for the knob on the dash. I have not tested the resistance at the nds switch yet but will post when I do. I will also check pin 10 to cha ground but it will probably will not read correctly since...
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    Check Engine Light Help

    Mercedez, the problem so far was the ground wire for the HEGO was broken inside the insulation and once that was repaired and I regrounded it to the firewall it cleared up the code issues except for the code 67 which hotcobra03 and HISSIN50 have been providing great information on how to...
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    Check Engine Light Help

    white/pink orange (not sure if it has a stripe or not) black lt blue/red they are kind of discolored. Thanks again.
  15. S

    Check Engine Light Help

    hotcobra03, pin 30 to 46 at the 60 pin computer harness plug with the ac switch off was 2.1 ohms. The white/pink pin on the connector under the car at the trans tunnel to chasis was -.009 v Thanks for the patience.
  16. S

    Check Engine Light Help

    HISSIN50, this is probably going to sound like a really stupid question but how do I check the in/out voltage at the switch. Electrical has never been my strong point and I am learning this stuff as I troubleshoot this. Thanks for the advice so far.
  17. S

    Check Engine Light Help

    Ok I checked the voltage at PIN 30 on the computer harness to ground and got -4.74 and then I unplugged the harness at the transmission tunnel and checked the voltage on one of the 4 pins there and got -11.83 to the chasis. Thanks for the help guys.
  18. S

    Check Engine Light Help

    Thanks hotcobra03 and HISSIN50 for the time and help. I was not able to check the voltage but will do my best to test it tomorrow. Just to make sure I read correctly I will be looking for : hotcobra03 you said to check Pin 30 to ground is less than 1 volt if not then the nss is bad...
  19. S

    Check Engine Light Help

    Ok just checked pin 30 out of the computer harness and it looks like it is purple with a yellow stripe.
  20. S

    Check Engine Light Help

    The car was an auto before the swap, I will double check the color of pin 30 tomorrow afternoon. All the research I did before I got this harness said that the computer harness did not matter if it was from a mt or at as long it was for the year was same. The harness that plugs into the neutral...
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