1991 Citroen Sm U1261 Fault Code Check

When you check 1991 Citroen Sm car engine light came on code U1261 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Citroen manufacturer may have a different definition for the U1261 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

To solve U1261 1991 1991 Citroen Sm problem, you'll have to remove the muffler, crankcase and other components blocking the valve chamber. Then, remove the cylinder head bolts (label for easy re-installation) Adjust the jaws of the valve spring compressor until they touch the top and bottom of the valve chamber Push the tool in to compress the spring and tighten the jaws Remove the retainers and lift out the valves , compressors and springs

1991 Citroen Sm U1261 OBD-II Diagnostic Network (U) Trouble Code Description U1261 SCP (J1850) Single Ended (-) Circuit Failure so you have to check ODB-II Fault Code Check list. Reason For 1991 Citroen Sm U1261 Code The reason of 1991 Citroen Sm U1261 OBD-II Fault Code Check is U1261 SCP (J1850) Single Ended (-) Circuit Failure.

1991 Citroen Sm U1261 Possibble Fix Ways :

The engine relies on the glow plugs to generate heat to help with the combustion cycle. Some engines only use the glow plugs when cold but others will allow the glow plugs to work when the ECU (vehicle's computer) needs them to be on to help with combustion. Problems in this area will cause diesel engine starting problems, uneven running and white smoke when the engine is cold.

If your vehicle failed a U1261 1991 1991 Citroen Sm test and the U1261 Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses U1261 a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look U1261 1991 1991 Citroen Sm: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.

What does fault code U1261 mean for 1991 Citroen Sm ? What does a diagnostic reading U1261 mean for 1991 Citroen Sm ? How to fix OBD2 Code U1261 for 1991 Citroen Sm ? What do we know about U1261 code for 1991 Citroen Sm ?