1991 Nissan Van U1794 Fault Code Check

When you check 1991 Nissan Van car engine light came on code U1794 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Nissan manufacturer may have a different definition for the U1794 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

To solve U1794 1991 1991 Nissan Van 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 Nissan Van U1794 OBD-II Diagnostic Network (U) Trouble Code Description U1794 SCP (J1850) Lack of Acknowledgment for Mirrors so you have to check ODB-II Fault Code Check list. Reason For 1991 Nissan Van U1794 Code The reason of 1991 Nissan Van U1794 OBD-II Fault Code Check is U1794 SCP (J1850) Lack of Acknowledgment for Mirrors.

1991 Nissan Van U1794 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 U1794 1991 1991 Nissan Van test and the U1794 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 U1794 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 U1794 1991 1991 Nissan Van: Any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression.

What does fault code U1794 mean for 1991 Nissan Van ? What does a diagnostic reading U1794 mean for 1991 Nissan Van ? How to fix OBD2 Code U1794 for 1991 Nissan Van ? What do we know about U1794 code for 1991 Nissan Van ?