OBD1 check engine light

[Twisted Steel Performance]

I think the obd1 system on a 93 doesn't do much, abs and some auto tranny stuff, so if I have a manual tranny now how or what would need to be removed or done to prevent the check engine light coming on ? I unplugged the sensor on the oil pump drive, it is of no use now, and the check light came on, I don't really want to remove the bulb... I plan to remove the wiring for the auto at some point ...

 

[WarWagon]

The ECM on 1993 diesel is ONLY for the auto trans. I believe the rear ABS is also a seprate self contained unit. Disconnect the ECM and remove the dead weight. That will turn the light out. I am assuming it doesn't have EGR or other oddball maybe's like 4 wheel ABS. Cruise is a separate self contained module as are the GP's.

 

[Twisted Steel Performance]

Thanks Joshua, I was hoping that was the case...

 

[MrMarty51]

Now thats interesting.
I always figured anything with a ECM as being much more complicated than that.

 

[n8in8or]

@Twisted Steel Performance I have a factory wiring manual for a 93, I can send you pics of any pages you'd like to see.

 

[Twisted Steel Performance]

Thanks Nate, I have one, I'm just wondering if it's worth the trouble saving the harness or just cut wires and pull it out the easy way...

 

[THEFERMANATOR]

93 doesn't have an ECM, it has a TCM. There is no electric controls to the 93 6.5l engine. The 93 TCM may be of use to somebody else with a 91-93 6.5l diesel, but that's about it.

 

[Twisted Steel Performance]

Yea I know, but all the wiring looks like a pain to save getting it out....

 

[EWC]

Which oil pump drive do you have ?

 

[Twisted Steel Performance]

The one that has a wire plugged into it.... ess maybe...

 

[Will L.]

Also good for hummers up to 1995. And anyone that wants to ditch the nightmare of ds4/pmd.

yes it should be an ess.

 

[EWC]

Yes , I know you have a wire to plug in . Does it have the vac pod ?

 

[Twisted Steel Performance]

No...