Cranks, but no start. checked for V+ at coil. none. checked at ASD relay. has V+ in but not out. Codes 11,12,42,55.

Cranks, but no start. checked for V+ at coil. none. checked at ASD relay. has V+ in but not out. Codes 11,12,42,55.


There are three fuses in the power control box next battery-cavity # 10- is a 20 amp. Yellow fuse. (auto shutdown engine controler ).
CAVITY # 11-15 AMP. blue (Auto Shutdown, Oxygen sensor).
cavity # 18--25 amp natural color--(auto shutdown)
check the wires on oxygen sensor that they are noy broken or burnt. 12-55 are telling the computer is working and the 55 is end of codes.
11--Camshaft signal or ignition signal --no reference signal deteched during engine cranking
42--Fuel pump or no auto-shutdown (ASD) relay voltage sense at controller. Dale check these fuses with a 12 volt test light, possibly the crankshaft sensor on the bell housing
http://www.autozone.com/images/cds/gif/large/0900823d80152482.gif
Shows the sensors

auto shut down relay shuts fuel supply down and injector activity when the computer does not detect a spark.