Mechanic Q: How do I pull the engine codes on a 1995 before OBD2?

I see the connector, but my OBD2 tool won't fit. Someone told me I have to ground a pin & then watch for flashing on the dash? Can I use a volt meter or just a 12v light for this. Sounds complicated at least for the first time I do it. Any direction would help

Mechanic Q: Idle problem?

Car stalled totally at idle. I removed & cleaned the throttle body & now it will idle enough to drive, but struggles to idle at a stop. I could not find a vacuum leak. I have to give it a bit of gas to keep it at idle at stop. I tested the fuel injectors with a stethoscope & they click fine. Any idea, I am a shade tree mechanic & can follow instructions if I know location & parts plus have a Haynes manual.

Mechanic Q: Excessive fuel consumption?

Car gets 18 to 20 mpg. What is the general cause for this. I did get 25 town :& 29 road.

Mechanic Q: Poor idle & acceleration?

Car went from 1/2 idle speed to would not idle at all. I cleaned the idle body with cleaner & idle is back to normal, but can will not idle properly when driving or acceleration. Strong odor at tail pipe also Car is always prone to die & can't trust to drive Help