Engine taking to long to reach operating temperature
Usually a stuck or worn out thermostat.
May be a bad temp sensor
Repair the problem that turned it on and then clear the code with an OBD2 scanner/code reader
Trouble code P0741 means:Torque converter clutch circuit performance or stuck off
Usually repairing the problem will allow the computer to clear the code. Use an OBD2 code scanner to read the diagnostic code and get an idea of what to do to repair the engine.
Fix the problem that caused the light to come on. Have the ECU scanned with an OBD2 scan tool to retrieve the code. This code will help you determine what is wrong.
Have the computer scanned with an OBD2 scan tool. Some auto parts stores will do this for free.
The Check Engine Light comes on when the ECU has detected a problem with the emissions system. Have the ECU scanned with an OBD2 scanner to retrieve the code that has been set. That code will tell you where to start looking for the problem. Once the problem is repaired you will need an OBD2 scan tool to reset the light.
If you fixed the problem you need a code reader/Scanner and erase them off the PCM with the OBD2 reader/scanner
With an OBD2 code reader. But, unless you repair the problem that set the light it will just come back on.
You have a problem with an emissions related component. Have the ECU scanned with an OBD2 scan tool to retrieve the code that has been set. A professional can use this code to diagnose the problem.
Because there is a problem with the emissions system. Once you repair whatever is wrong and reset the light it will stay off. You need to have the ECU scanned with a OBD2 scan tool and retrieve the fault code. Use this code to diagnose the problem.
The 1994 Volvo 850 does not have an OBD2 connector. In fact, this car is instead in the OBD1 group. In order to read fault code ( Fuel injection, Ignition, Automatic transmission...) there is a Diagnostic Test Unit located in the front right hand side of the engine compartment . It consists of two modules side by side, with a plastic cover on each one . After lifting the covers off, you can see the modules marked A and B, where each one has six numbered sockets.
u can either buy an OBD2 code reader that has that function, or u can disconnect the battery for a few minutes once u hook it back up the light will be off. BUT because your van is a 2000 u will need an activation code