My lady was drving our 1999 Ram 3500 cummins turbo diesel, getting on the highway and throttling up when all of a sudden the check engine light came on and our big white truck slowed down to a crawl, 20 mph max. We limped her home and called a good friend of mine who has a code scanner, he hooked it up and it came up with a P1689 code. She will start up and idle, step on the pedal and she studders a bit a Safety shut down mode I suppose with the 20 mph max..Please help me get my baby purring again..Patrick
My lady was drving our 1999 Ram 3500 cummins turbo diesel, getting on the highway and throttling up when all of a sudden the check engine light came on and our big white truck slowed down to a crawl, 20 mph max. We limped her home and called a good friend of mine who has a code scanner, he hooked it up and it came up with a P1689 code. She will start up and idle, step on the pedal and she studders a bit a Safety shut down mode I suppose with the 20 mph max..Please help me get my baby purring again..Patrick