Possible PCM failure?

[mecp_316]

hi wanted to say hi new to this forumn looks awesome!! an i have had a problem ive been dealing with for a few weeks basiclly my 95 xplorer sputters when i start every one under the sun was saying idle/air valve so i went an had it scanned from my buddies shop hes using an snapon scanner an as well he tried his obg genisis an it comes back no codes as well at the same time my motor is sputtering horribly sn none responsive when you hit the accelerator so i know somethings up im tryin to find out how you can test the pcm an to see if thats my problem thanx!!!

 

[MustangP51]

Welcome to the Forum.

If your trouble shooting a problem the PCM is usually the last thing to check, since it is rarely the problem. I would start with wiring connections and fuel pressure.

 

[mecp_316]

i will defnt check that but the reason im leaning to electrical ignition side is the pcm engauges the check engine light but doesnt throw a code an i know fule pressure failure is a code an i know that the 94 an newer stores the codes an it wont interface with any scanners that i have used on ...
thanx !!

 

[MustangP51]

Oh now that is weird. If the CEL is on and there are no codes. Have you used more then one scanner?

 

[mecp_316]

yeah thats what no good haha i own a custom car shop here in wichita ks an i have a couple of freinds that own mech. shops they came by the first scanner that was used was a 20k osscil. scope scanner made by snap on an this thing will generally tell you how many time that motor has miss fired haha an then we used a genisis scanner which i own an its nuthing special but its distrib thru mac tools so theese arent youre autzone pocket scanners, basicly what we have noticed is the pcm is ingaugn' the check engine light because it recognizes the motor is fauling up an i want a for sure diagnoisis before investin 500 in usless parts thanx!!