[87 GT MUSTANG]

I pulled some codes from my 1995 mustang gt this morning and i had a code 542 (the only one) come up, which is fuel pump circuit open from processor to motor ground. I have a good idea what this means but could this also be the problem as to why my car keeps stalling when it gets up to operating temperature.Also how would i go about finding this open ground, could it be a frayed wire or maybe a bad connection. Any suggestions would be appreciated.


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