I have a 1994 Volvo 940 that I want to restore. It worked a few years ago when my daughter drove it to my place. However, as I half-expected, it wouldn't start.whne I tried a few days ago. I'll cut to the main mystery. It turns over, but doesnt' keep going. I had added fresh fuel, and I injected some starter fluid, which got it going for a couple of seconds. Herein lies my dilemma. When I went to test the fuel pump relay, there was no relay where the diagrams show it is supposed to be. Neither is there any wiring harness to the terminal block. I can't find any info on where else this relay can be located. So, I would greatly appreictae any help in solving this mystery so I can move forward with my quest.
Thanks.
jcm

 

2/13 is the fuel pump/fuel system relay, on a turbo (b230ft) car. Rectangular with 6 terminals. 2/23 is the fuel relay on a Regina (b230f) non- turbo car or a b230f non turbo with a bosch air mass meter. Square with 4 terminals. What engine do you have?


2/23 for non turbo b230f Regina or bosch cars.

 

Thanks for the reply. This is the relay setup that I have in this 940 Volvo. A number of slots are not used, including the one where other diagrams show the fuel pump relay is supposed to be located.

 

The blue relay is the fuel pump relay on non-turbo cars. Do the wire colors going to that relay agree with the diagram? Pink, yellow with black, blue with yellow and brown?

 

Looking at the relay diagram on the side of the Hella 4RD 003 520*52 Relay, which is loacted at the socket you indicated, it looks like terminals 30 and 87 are supposed to be normally open, while the contacts between 30 and 87A are supposed to be normally closed.. However, upon doing a continuity test on both pairs lugs, I get continuity between 30 and 87, and an open circuit between 30 and 87A. So, am I correct in concluding that this relay is defective, or am I missing something? Searching on line, it appears that this relay is no longer available. So, I am now searching for the propery replacement. If you know the model of relay that is replacing this one, it would help make my search easier. Also, would I be correct in putting a jumper wire between the sockets 30 and 87 on the relay module to test the fuel pump? As I initially stated in my first post, the motor turns over when the ignition is switched on, but it immediately stalls. So, the starter works. I want to test the fuel pump before doing anything else. If I can get the car going, I can drive it to a nearby auto shop to get totally serviced.
I have to add that the tech who serviced this '94 Volvo for years is no longer around to consult. So, I sincerely appreciate any help anyone has to offer.
jcm

 

My apologies. I wrote my response before I saw your latest answer. Thanks a lot for your much-appreciated input. Yes, those are the colors of the wires to that socket. As previously posted, which connections should I put the jumper across?
jcm

 

Brown wire comes from the 1/1 battery via fuse 11/1, pink wire goes to a junction at fuse 11/11 then to the 6/31 fuel pump. Could easily test if the relay is sending power to the pump by checking for 12v with your lest light at fuse 11 when the starter is spinning the engine over. If not turning on - need to make sure the ECU is sending power to the relay coil. Don't buy any parts yet - determine which ones you really need first. And the fuel system relay is sold everywhere if needed. 9130270 might be the original part number, in blue. https://www.fcpeuro.com/products/vol...70-v70-9494787

If I knew whether the car was Regina or Bosch I could post the correct wiring - this is for a bosch car.

 

Thanks for the instructions. I tested for voltage from the fuse, and got nothing. Also, I tested for voltage across the relay and got 12.48 volts without turning the ignition key, and NOTHING when the ignition key is turned. Shouldn't the opposite be happening? Is this because the relay is defective?

 

Also, excuse my ignorance, but I can't find anything that identifies it as either Bosch or Regina. What identifies it as either Bosh or Regina?

 

A Bosch system uses an air mass meter as pictured below. It's mounted in the air intake tube between the air filter and the throttle plate. Regina has a temp sensor in that tube instead, it's smaller with just 2 wires going to it. Regina has a funny looking ignition coil, (with the silver ignition control unit bolted to it), the bosch coil is normal looking.



"Is this because the relay is defective?" Hard way to test a relay - unplug, get two jumper wires, and power the relay coil with 12v + and -, that wil close the contacts. With an ohnmeter check the resistance through the contacts. Should be 0 - you may be able to pry the cover off the relay - many of them you can.

 

Thanks for the reply and the picture. The one on this Volvo looks like the Bosch model. See attached picture.