2000 ram van 6 cyl. For 2 years it threw idle air control code. Replaced twice. Always ran anyway. Then one day driving down highway at 70 and all electrical lost. Coasted to shoulder. It cranked and restarted. Happened again twice while limping home. Next day started it in drive and it ran but really rough, like missing out. Next try or two it deteriorated further until it wouldn't start. Mechanic says he doesn't have time to diagnose it and believes possibly mice chewed wires. He suggested start testing wires going into computer for ohms. Thinks computer likely shot, too. Dodge will not look at it. Say it's too old. I want to repair it. Only 80k miles and ran great before this happened. Any suggestions? All appreciated.

 

Any new codes? Check vitals fuel pressure and spark.

 

Electrical lost, or the engine stalled? Based on the stalling and rough idle since, to me it sounds like it could be a failed fuel pump.

 

If you remove the doghouse and look around it will be pretty obvious if mice have been in there chewing on things. There will also be evidence as in droppings everywhere. Mice are usually a problem if the vehicle sits around alot.

 

​​​​​​First all electric lost. Speedometer hand swung down to 0 as I was still going 70. Coasted off road.

The next day when I started it, it just missed out more and more. Then it wouldn't start anymore.

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In that case I'd have to agree that the PCM is high on the suspect list.