I have a 1988 Dodge Power Ram 100 I am trying to locate the crank sensor. I looked on the rear of the engine both sides.
flashlight and a camera no luck. My question is did this model come with one? this is the first year of throttle body. Trying to locate
crank sensor before I purchase an SMEC (ECM) . Truck has no power or spark to the coil. Thank s

 

it is in the distributor.

how are you testing for power at the coil? usually there is only power at the coil for a short period when you turn the key then a when it senses cranking. it is usually best to test with a test light.

 

There is no crank sensor, Timing is done with the distributor. Any codes(check engine light)? You can check for codes using instructions here.

 

We used a test light on the positive side of the coil. We tried starting but there was no power coming to the coil. I replaced the ignition ,the ignition switch, the hall effect in the distributor and the ASD. WE check every fusible wire and yesterday check every wire with a meter coming and going to ECM . Haven't replaced ECM because this is a California truck and the emissions call for a ECM 4379546. Hard to find! Thanks for your reply and help!

 

We used a test light on the positive side of the coil. We tried starting but there was no power coming to the coil. I replaced the ignition ,the ignition switch, the hall effect in the distributor and the ASD. WE check every fusible wire and yesterday check every wire with a meter coming and going to ECM . Haven't replaced ECM because this is a California truck and the emissions call for a ECM 4379546. Hard to find! Thanks for your reply and help!

 

Is the asd relay engaging with the key on? That's where the coil gets it's power.

 

I will check this afternoon. So I should be looking to see if power is going to the ASD so it can send power to the coil. Thanks

 

Cant check codes because we disconnected battery and it wiped any information.
These are some codes we wrote down when it first happened. 12, 33, 37, 42 and 55
Thanks for your help

 

did you check for power going into the relay? do you live in California? unless it absolutely has to be that computer it may be worth swapping out for a different computer. i don't even know what the difference would be. the computer is actually a 2 part computer. i believe the smaller connector is the controls the ignition and the other section controls the rest,

 

42 Automatic shutdown relay circuit open or shorted
This is what you have to look into.