I have a 1992 Dodge Dakota v-6 runs at idle but.

You may need to check compression. Use a gage and check fuel pressure. Any applicable trouble codes? You should be able to check trouble codes, yourself.

I'd have to check for trouble codes, first.

You should be able to check some trouble codes by cycling the ignition switch. You turn the key just till the dash lites come on, no further, no crank. You cycle the key, on--off, on--off, on, then the check engine lite starts flashing. You count the flashes to get the codes. Your looking for two digit codes. 55 is end of message.

You may have an air charge temp sensor on throttle-body. Voltage too low.