Two problems related to check engine light on have been reported for the 2007 Dodge Ram 1500. The most recently reported issues are listed below.
While driving down the road at 45 mph I let off the gas to slow down when the truck started to lunge forward then stop then continued to lunge forward it repeated this process for a while. When I pressed on the gas it was fine only when I let off it. After about 5 miles the check engine light came on went to autozone had the code reed. The map sensor was bad so I replaced it myself. A week later driving down the road the truck began doing the same thing, only this time at a stop light the engine shut off. The steering wheel locked up as well as the brakes. I was able to get it restarted but it nearly caused an accident. Went down the road about 1/2 a mile when he died and I was unable to restart it. Had it towed to a Dodge dealership who said the map sensor was once again bad. They replaced the map sensor this time and everything was well for about 2 weeks. When once again the truck did the same thing. Took it back to the same dealership once again the fault code was the map sensor. Upon them digging further they found the pcm was actually shorting out the map sensor. So they replaced the pcm. The new one came in and they weren't able to reprogram it. They contacted daimler-chyrsler who sent them another pcm they received that one and still are unable to reprogram the pcm. So that's 3 map sensor's and now 2 pcm's.
The contact owns a 2007 Dodge Ram 1500. While traveling at 35 mph, the check engine warning light and the throttle warning codes were illuminated. Within seconds, the vehicle would no longer accelerate. The vehicle was not taken to the dealer for repairs or diagnostic testing. The failure recurred the next month while driving at 35 mph, without warning. The vehicle was taken to a local repair facility but the mechanic was unable to duplicate the failure. The vehicle was not repaired. The failure mileage was 28,000 and the current mileage was 29,000.