1994 Wrangler with power problems

[myjeep1994]

i have a 1994 jeep and i cant seem to get my jeep started i changed the pcm and still cant get it to fire someone help:evil:

 

[JaShar30]

What is it doing? Exactly... Is it rolling over is it starting but dying right away??? We need a bit more info to help you out... I am not sure on the xj but i know you should check your coolant sensor i had a friend that had that happen on his car a few years ago it happened to be a corroded wire for the sensor... A simple fix and it caused a serious bunch of problems

 

[myjeep1994]

Re: 1994

What is it doing? Exactly... Is it rolling over is it starting but dying right away??? We need a bit more info to help you out... I am not sure on the xj but i know you should check your coolant sensor i had a friend that had that happen on his car a few years ago it happened to be a corroded wire for the sensor... A simple fix and it caused a serious bunch of problems

it just rolls over their is no power to the computer would u know what brings the power to the computer im not sure but i think it comes from the speed sensor

 

[TerryMason]

Re: 1994

What type of 1994 Jeep do you have? Give us more information about your situation (i.e. is it giving you an error code, etc).

 

[JaShar30]

I am not 100% sure but as for power to the comp I'm sure is like a stereo has a power line from battery source and a line from the ignition switch as well... How do you know there is no power to the comp?

 

[JaShar30]

Why did you change the pcm in the first place. I am curious as to that... Is it possible you blew your fuse

 

[myjeep1994]

Re: 1994

Why did you change the pcm in the first place. I am curious as to that... Is it possible you blew your fuse

i changed the comp because i had no juice to anything i found out yesterday that all my fuse box under the dash was all croaded and would not hold a fuse so i changed the harness and finally had power to everything but the fuel pump is not working their is power to the relay their three wires comin from the pump and no juice at all the green and black comes from the relay the blue wire comes from the fuel guage but do not know where the black and orange comes from would u know what is what

 

[myjeep1994]

Re: 1994

What type of 1994 Jeep do you have? Give us more information about your situation (i.e. is it giving you an error code, etc).

i have a jeep wrangler 4cy 4spd no juice to the fuel pump

 

[JaShar30]

Check your fuses under the hood you may have a fuse blown under there for your fuel pump

 

[myjeep1994]

Check your fuses under the hood you may have a fuse blown under there for your fuel pump

i checked all the fuses and they are good

 

[JaShar30]

How about checking the wires to the pump maybe a corroded wire