Could be the fact that it is a Jeep!
Don't know if '92 has a map sensor or not, but if it does check that. Coolant temp sensor also.
1989 Yeah it's a Junker, 100% paid for.
Powered by a massive 117 HP, fuel injected, 150 c.i. AMC 4 cyl. powerhouse.
Scratches, dents & minimal rust.
No radio, speakers or antenna, but has heat, lights & wipers.
Always starts and stops.