I am having a problem with my sisters 1994 940 Non-Turbo. The 1st time the car died, it was left overnight at a friends house. My father and myself picked it up the next day. It ran fine and got us the 2 miles to the house.

The very next day she got about a quarter mile, and it died. I walked from the house to get the car. The only way to get it running was to start it, shift into gear, let it idle and then apply the smallest (I'm talking millimeters) amount of pressure to the accelarotor. If I applied any more, the car would die. Tachometer jumps, car knocks and dies.

At first read I though it may have been the "fuel pump relay". But, her car does not seem to have one. From what I read, it should be in front of the "J" relay right behind the "circular" thing. Although there are holes there, there nothing in the holes for a realy to "plug" into.



I replaced the Blue relay (fuel injection?)



This however, did nothing. Next step was to clean the MAF. This also did nothing. So the check engine light is on. I figured i'd try the Diagnostic "Box" infront of the drivers-side shock tower. The "A" box checked out fine (FLASH 1-1-1) in all sockets. The "B" box was fine too. Except for the "2" socket that flashes 1-2-2. From what I read, I believe this is the "cruise control" socket. The car does not have cruise, so I'm guessing that's why it would lead me to believe there was a problem.

I'm quickly running out of hope. Any information would be greatly appreciated.

 

i would def hit up a harbor freight or local parts store and get a fuel pressure guage cause it sounds like you might have a bad fuel pump, or clogged fuel filter...had this problem with a buddys 940 turned out to be the fuel pump...

 

Is there an access plate that covers the fuel pump? Or will I have to... drop the tank

 

There are two fuel pumps on 940's (non regina) one is in the fuel tank, the other is under the car about where the driver's seat is.

The one under the driver's seat is accessed by removing three bolts.

 

I think Avguy means under the car there are three bolts, just in case it's not clear. There is no access panel or a need for one (at least on 700's, I'm not sure about 900's). When I read it it just sounded like you could get it confused with what you were thinking and what he said.

One thing that I might give a shot is open the throttle position switch and see if it still dies. You can make the computer think that it's open just by unplugging it. It may mean an electrical fault, but it does not rule out fuel pressure.

Fuel pressure is also a good place to start. See what happens to it right when it dies.

Good Luck.