1990 Volvo 240 Fuel pump?

mhgreen · Post by **mhgreen** » 16 Jun 2015, 21:02

No start… Initially thought In-tank fuel pump, but it was throwing a code for the CPS. Replaced cps this afternoon and all went well. There are no longer any codes stored in the obd system. Anyways...back to fuel pump because it still wont start.

If I jump power to fuse 4 I can get it to start but once I remove power it shuts off. I have 3/4 tank of gas so I am confused. If in tank pump is bad, shouldn't the car start and drive with 3/4 full tank?? Moreover, if I can start the car while supplying power to fuse #4 what's happening? Fuel relay is new, as well as fuel filter. Thoughts?

..oh yeah, fuse is good (#4, #6, and 25amp near ignition coil)

93Regina · Post by **93Regina** » 17 Jun 2015, 07:03

mhgreen wrote:...throwing a code for the CPS...

Code can be falsely triggered when fuel side is the issue...FPR...electrical issue, etc.

> jump power to fuse 4 I can get it to start

I'll have to re-look at wiring diagram, but iirc, fuse 4 powers up several items.

I would pull Fuel Relay, and send current thru terminal that feeds fuse 4.

Nashsurecanpaint · Post by **Nashsurecanpaint** » 25 Jul 2017, 17:02

I'm having the same problem it sounds like. I've also posted my question in the forum. Please share any information you get. We might just have the exact same problem.