someone cut the obd plug off

[rchandler]

i cant find it or where it was cut from. im a very experienced mechanic but this has me stumped. i bought this 98 s10 repo with a bad engine, i replaced the engine fired it up and it ran great when i went to reset the check engine light BAM no obd port any ideas, short of getting a wiring diagram and a junk yard plug i have no idea any thoughts

[bespurcell]

Wow. Mine is in the usual spot. Driver side under the dash. Maybe Mike or Sparky can help you with the wiring.

[Jay-Sliver]

weird..sorry about your luck...
do you see any wire tails or anything?

[rchandler]

no signs of cutting nothing. like it was never there. seems to run fine. its getting 28 mpg i just dont like the light on or the inability to diagnose problems

[bespurcell]

I wish I got 28 mpg.

[rchandler]

well i keep it under 55 most of the time and shift early, no big secret just gotta leave a little earlier for work. i think im gonna put an electric fan on it and change to synthetic fluids, working twards 30+ mpg

[bespurcell]

That makes sense if you have a 5 speed. My cousin had a '98 with a 5 speed and we got 28 mpg going 75 on a roadtrip to Indiana. The highest I've got is 25 driving 60. That's coasting to a stop, coasting down hills, etc. Before I did all my mods I could only get 21 mpg.

[Mikz86TA]

ODB2 plug on a 98-up is attached to the drivers underdash hush panel with 2 7mm screws. Wires from it shoot up to a harness. Did you find the end that had been cut off or just cant locate it? Its possinle someone moved it....maybe to attach a scanner sub-permenently or something. But it cant go far =)

[rchandler]

been all under the dash, had the cluster and panel under the column out not even a sign of a clipped wire. guess ill go to the junk yard get a harness an a haynes manual and put it back in

[BigTruckDrivah]

You better invest in something better than a Haynes manual if you want good wiring diagrams.

[1low_s10]

my obd plug is there just my old tech teachers scanner wont read it but advance and autozones will?

[Nickelin'Dimer]

Oh yes. Most scanners typically sold & used today are meant for the OBDII system. As for this other guy's problem... I can't think of why it wouldn't be there unless it's hidden behind some of the trim somehow by a previous owner's efforts.