420A No start, No spark, No fuel. I replaced CKP sensor and it fixed everything but failed 12 hours later

[langelg6]

1995 Eagle Tallywhacker Esi
N/T FWD 5 speed M/T


symptoms:
No spark at coil, no fuel pump prime, no fuel injector pulse and alternator slowly gets weak slowly reducing cranking power unless hooked up to a jump.

I replaced the CKP sensor the other day, hooked it up to a jump and to my surprise it fired up and code P01391 went away.. I drove it around a few hours to make sure alternator was ok... 12 hours later while driving home the car cut off and all of the same problems came back

The CKP sensor was $25 off eBay so it might be a bad new sensor but even with cheep chinese parts their is no way it can crap out only 12 hours later of it arriving on my doorstep

Going to try a new ASD and MFI relay and keep you updated

 

[langelg6]

is it possible for the wiring to have gone bad ?? and how should I test the engine side of the harness to make sure its in working order

 

[motomattx]

Maybe a bad connector at the crank sensor, and a cheap sensor I guess could potentially go bad quickly.

 

[langelg6]

Maybe a bad connector at the crank sensor, and a cheap sensor I guess could potentially go bad quickly.

Just replaced pig tail connector for harness side, still no dice any suggestions anybody please idk how a car can just go out again in 12 hours

 

[BLACK'98DSM]

First off, what does "CKP" mean? That should be most commonly CAS, or CPS...

Anyway, I would prefer one from the local autoparts store over an Ebay one. Some people have to learn lessons the hard way about Ebay crap.

So what I'm saying is, buy a NEW and NAME BRAND sensor and report back.