ray hall
Member
- Joined
- Jan 28, 2014
- Posts
- 35
- Reaction score
- 2
- Ram Year
- 1983
- Engine
- 225 slant six
I have an 89 w150 with a tbi 360. It's been running good then one day it started staying revved up for a while once u let off the gas. Drove like that for a while then it started setting a code 13 map sensor. Finally I found out the fuel pressure regulator was leaking causing all the problems. Now it started setting the code 13 again. Regulator is not leaking anymore I can't find a vacuum leak anywhere and I tried swapping out the map sensor with no luck. It's getting the 5 volt reference and all wires seem good but here is the weird issue. If I start the truck up and let it warm up after about 3 minutes ish it will miss out one time and the code is set. But if i just start up and start driving the code will not set but it won't drive well until it is warmed up. It will start sputtering and acting like a carb once the rpms get higher. Shift in the next gear it takes throttle again till it revs up. Once its warmed up it wont do this. But i for the life of me can not figure out what is causing this issue.
