Login Register

Guess that sensor! 85 240 B230F

Help, Advice, Owners' Discussion and DIY Tutorials on all Volvo's "mid era" rear wheel drive Volvos.

1975 - 1993 240
1983 - 1992 740
1982 - 1991 760
1986 - 1991 780
1990 - 1998 940
1990 - 1998 960
1997 - 1998 V90/S90

Post Reply
Kushballz
Posts: 17
Joined: 6 August 2005
Year and Model:
Location:

Guess that sensor! 85 240 B230F

Post by Kushballz »

1985 Volvo 240
Station Wagon
B230F RWD
Fuel Injected

Hey Everybody!

I am having quite a dilemma with my car, and I may have found the reason why its sputtering and not running like it should. I have noticed that some of the sensors and their wires aren't looking quite like they should. Almost all the wires on my sensors are nearly bare, and sensor #1 had a wire going to it, but the wire got cut and isn't connected to anything except the sensor.
Below is Sensor #1.
Image

Does anybody know which sensor this is? I have taken off the plastic clip-on wire connector off of it. The white thing on the left is the oil filter, and the gray thing to the right is the alternator. This is below the exhaust manifold near the front of the car.

Next, we have two sensors.
Image

I believe that the sensor mounted on the aluminum is the temperature sender for the temperature gauge next to the speedometer. The only thing I can think of for #3 is a knock sensor. Am I right? These are below the intake manifold, probably pointing to cylinders 2 and 3. I am certain that neither of these are coolant temperature sensors for the computer. I replaced the temperature sensor for the computer earlier today, and it is further back, near the firewall.


All help would be appreciated, especially if anybody could tell me where sensor #1 is supposed to connect. I looked down the wiring harness where all the other nearby wires go, but I didn't see any disconnected ones in there! Thanks!

Kushballz
Posts: 17
Joined: 6 August 2005
Year and Model:
Location:

Post by Kushballz »

Ok, after hours of searching the Internet, I have concluded that Sensor #1 is actually a Oil Pressure Switch. #2 is more than likely the Coolant Temperature Sender for the gauge, and #3 is probably the Knock Sensor.

waynej
Posts: 414
Joined: 18 April 2007
Year and Model: 1999 S70
Location: Sandpoint, Idaho

Post by waynej »

You are correct on #1, 2 is temp but I'm not sure which one. don't know on 3.

Post Reply
  • Similar Topics
    Replies
    Views
    Last post