1990 dodge ram van b250 code 45 - 1987 Dodge Ram Wagon B250

SOURCE: Dodge ram van stalls when RPM are low

could be fuel filter clogged //fuel pump is going bad which you will need to have a pressure test done ...also is there a gas odor ? could be rusted lines could be air filter ....messing with the timing you should not move to much ...if you have brake /carb choke cleaner try spraying around the intake manifold to see if any change in performance such as lowering the rpm's which would mean a gasket leak are all the Vacuum lines good and not dry-rotted try bending them ans well as spraying with a squirt bottle of water on the plug wires to see if an Arc is present a bad plug wire ..these are a few areas in which i would consider 1st ..hope this helps you

SOURCE: I have a 1990 Dodge

the numbers are 12, 41, 55
12- direct batttery inut to controller disconnected within last 50 ingnition key-on cycles
41- alternator field circuit- an open or shrted condition detected in the alternator control circuit.
55- final code - indicates the end of the scan codes

I've replaced the alternator and checked all the wiring still can't find the solution. I've posted to find out if the alternator control circuit can be repaired.

SOURCE: i dont have the diagram

normally the diagram for the fuse box is just inside the lid and my suggestion to you is to stop by a dodge dealer and the parts department would print you off a diagram

SOURCE: change dodge ram b250 parking brake cable

try all the major auto parts stores,like pepboys,autozone,advanced auto, & if not NAPA. All else fails,try the dealer ,if that fails try ebay.

SOURCE: 1990 Dodge B250 3.9 ltr. smell gas most of the

Check all lines for leaks, check charcoal canister filter, check Evaporative emissions control system. ,