1993 850 2.0 No start , cranking, dry plugs

[cn90]

Below is a photo of the Crank (LOWER red circle) and Cam (TOP red circle) sensors.
Make sure they are properly connected.

JohnnyRingo, your original photo showed that the connections for these 2 sensors are swapped in position!

[JohnnyRingo]

I will take a look at it when i get home, and take a few pictures.
But this is nothing that has been touched recently.

The car was fine about 3 weeks ago, it sat unused for about two weeks. Then when i got back i started it, backed out of my parking spot and noticed i had a flat, drove it back into the parking spot. After i had gotten the tire fixed two days later the car wouldn't start.

**Edit**

Here is a better picture now with the old unused plug removed.
The black wire where my hand is at, has two wires inside, we measured it at 300 ohms's so that sensor should be okay like the video said.
But like i said this is nothing that has been touched recently.

[JohnnyRingo]

Just checked and its definitely not the timing belt, its all okay and the marks all match.

How do the injectors work? i was measuring the voltage on the connectors and it was always getting power, so how does it control when to inject?

And the spark plugs are always dry.

So could this be something computer/sensor related?

Also if admin reads can you change topic name to "Car wont start"

[abscate]

Fuel injectors get power all the time, the ECU fires them by grounding them.

It is very rare to have an ECU problem, my guess is you have a simpler problem.

[JohnnyRingo]

The spark plugs are always dry and almost no gasoline smell on them... so they are not getting fuel

[polskamafia mjl]

You may have already done this, I didn't see it explicitly written however, but did you pull the fuel rail off and check to see if the injectors are actually squirting fuel? If you check that then you will have checked all three 'ingredients' for combustion (air, spark, and fuel).

If you verify that the injectors are not spraying fuel you'll have all of the information needed to start diagnosing the problem.

On my first 850 I had a very similar situation to what you're experiencing now. I had spark and air, but no fuel from the injectors. Fuel pump was fine and fuel pressure was correct at the schrader valve but the injectors themselves were not squirting fuel. I spent quite a while trying to diagnose this problem, I checked that all the relays for the fuel system were working, etc. I finally gave up and had it towed to a shop I had used frequently for other work on my car. I explained the situation to them and ran through all of the diagnosing I had already done. They spent a few weeks with the car replacing part after part (read: wasting money and time) until I got annoyed and had it towed to the local Volvo dealer.

Volvo had the car for a day or two and 3 hours of billed labor later they found a severed wire. The wire was spliced back together and the problem solved.

[JohnnyRingo]

Tried the injectors, they all worked, measured the pressure on the fuel system, was 40psi.