It is under the plastic cowling where the wiper arms are at.
The 1994 Volvo 850 crankshaft position sensor can be found on the back of the engine. You will need to remove the rear engine cover in order to access the crankshaft position sensor.
The 850 does not use a MAP sensor. It uses a MAF sensor that is located and attached to the air filter housing lid
On the rear of the exhaust camshaft; behind distributor cap.
Fix the problem and the light will go out. Normally on Volvo 850's the ABS sensor goes out (actually a wire comes loose inside the unit) this sensor is under the hood on the ABS unit.
You can find an air conditioner for a 1994 Volvo 850 on Ebay. The Volvo 850 was designed by Jan Wilsgaard. There have been 1,360,522 units made between the years 1991 and 1997.
On a 1994 Volvo 850 sedan, the oxygen sensor is typically located on the exhaust manifold or just after the catalytic converter. For the pre-catalytic converter sensor, you can find it on the exhaust pipe leading from the engine. The sensor is usually threaded into the exhaust system, making it accessible for replacement or troubleshooting. Always refer to the vehicle's service manual for specific details and diagrams.
On a 1997 Volvo 850 GLT, the speedometer sensor is located on the transmission. Specifically, it is mounted on the driver's side of the transmission, near the rear, and is often referred to as the vehicle speed sensor (VSS). To access it, you may need to raise the vehicle and remove any obstructions to reach the sensor.
http://www.swedishautoparts.com/850/volvo-850-electrical-parts.html Try this website for a pdf. Hope it helps, Troy
There's no Volvo 850 2000. What you likely saw was a S70.
A leaky mass airflow sensor or it can be a leak in the air intake hose.
when engine running , i took out msf sensor accidentally. Then lambda on ,
Here's a link that may help. The RPM sensor is also known as a crank position sensor. http://www.volvoclub.org.uk/faq/EngineSensors.html#Crank_Postition_Sensor