92 mtx randomly cuts off

[SHOByrds]

i need help with this problem my buddy that works at a shop and i can not figure this out. I'l be driving down the road running smooth, then the rpms will drop to nothing and the car shuts off....sometime i get lucky and it will crank right back up...other time il sit for couple minutes until it starts.
computer says 157, 211, and A 542. Any one have any suggestions?

 

[lowc]

is it happening when you depress the clutch?

 

[SHOByrds]

no
just randomly while driving

 

[SHOByrds]

a friend says its cps but when we went to replace that i noticed the crank bolt was stripped! I've thought about drilling it out but what do i replace it with? I've looked for crank bolts and the junk yard is the only place i know of, but that wont be easy

 

[lowc]

i think i might have one at the shop but wont be able to check till tomorow if you cut off the torque washer around the head you should be able to get it out fairly easy but dont do it untill you know you have found a replacement. i dont think its crank sensor the usual sign of bad crank sensor is it will die when hot and not start till it cools but ive seen wierder stuff happen i would check to see if maybe their is coolant dripping on it first. have you tried driving it with the maf unpluged?

and i just noticed you have posted this in the wrong section you can ask a mod to move it for you

 

[SHOByrds]

i didnt think it was cps
i replaced the water pump in july so i dont think anything is dripping.
and i have not unplugged the maf and driven it
sorry i posted in the wrong section...this is my first time using shoforum

 

[stangeater]

Replace your crank positioning sensor....My 92 was doing the same thing before my sensor went bad. And yes, random stalling is a symptom of a bad cps, and not a symptom of a MAF issue. The stalling will get more frequent until you will eventually not be able to start the car.

 

[lowc]

sorry i posted in the wrong section...this is my first time using shoforum

not a big deal it happens just wanted to give you a heads up thats all

 

[SHOByrds]

i need a replacement crank bolt before i can change the senser. my bolt is stripped. any ideas ?