0
votes
1answer
203 views

when i start my 1500 dodge ram rpm goes up and down in morning

When I start my Dodge Ram 1500 in the morning, the RPM goes up and down for about 4 times from 1000 to 2000 and it sounds like the truck is gonna shut off. It also has a check engine light on. Just ...
2
votes
1answer
136 views

94' Dodge Spirit 3.0l v6 Throttle position sensor over 4.96V

I pulled up the codes from my 94 spirit that's been running sluggish and unresponsive lately. I got a 24* Throttle position sensor over 4.96V. I put a new TPS in and I'm still getting this code. Do I ...
10
votes
2answers
3k views

2005 Dodge Ram: easy way to diagnose code P0420?

My truck is reporting a code P0420, which apparently is "Catalyst System Efficiency Below Threshold (Bank 1)" which can either be the catalytic converter or the rear O2 sensor. The code came on at ...