2000 S80 2.9 dies when hood is shut

[flagracer]

Problem: car does with hood shut, esp once warmed up
History: crashed 2 years ago with damage acroos the front including several wires, replaced top radiator support, lamp assemblies, alternator, radiator, condenser.

Car has very intermittently randomly died since then, but suddenly a few days ago i started dying constantly. It always restarts but then dies very quickly. This is my parent's car, and I noticed the symptom got worse when it warmed up so I let it cool off for an hour. Then it started a ran so I closed the hood to drive it and as soon as the hood closed it died. Tested this theory and it was true. Closed it softly and and test drove and it began to die shortly after. Released hood and drove it home with no more dying.

It seems this must be electrical in nature (no codes, runs awesome when it runs). Wondering if something in the hood latch wiring/security system can cause this, or if there is a ground for the PCM somewhere up front, or if the main wiring harness on the passenger side front which has several repaired wires could be a possibility. Mom rear ended a truck which pushed the grill and all things above the bumper back just enough to break the voltage regulator. Manually banging on things with my fist all across the front had no effect so I don't know if it's related to the actual latching mechanism and if a bad latch could cause this.

thx

Any ideas wbout where to look would be helpful

[SuperHerman]

Pull the MAF connector and see what happens. Maybe you get lucky and it is a bad MAF.

Otherwise look at the wiring diagrams and see what circuit is involved - here:

http://www.volvowiringdiagrams.com/?dir ... 20Diagrams

Then you will have to go through each relevant circuit and look at the connectors, harness, wires and components - measuring voltage and continuity.