DTC Troubleshooting: P0087 (95)
DTC P0087:
 Fuel Rail Pressure Too Low
NOTE: Before you troubleshoot, record all freeze data and review the general troubleshooting information.
  1. Before attempting this troubleshooting. Check whether DTC could have been caused by insufficient fuel level.
Was fuel insufficient?
YES -
NO -
Go to Step 2 .
  1. Check the ECT in the recorded freeze data.
Could fuel have frozen due to extremely low temperature?
YES -
Check and repair the freezing point in the low pressure fuel line, then go to Step 12 .
NO -
Go to Step 3 .
  1. Check for fuel leaks in the high pressure fuel line (at the injector, fuel pipe, etc.).
Is there any leak?
YES -
Repair the fuel leak in the high pressure fuel line, then go to Step 12 .
NO -
Go to Step 4 .
  1. Turn the ignition switch OFF.
  1. Disconnect the low pressure fuel feed hose (A) from the fuel supply pump (B), and receive fuel in a container.
  1. Squeeze the fuel hand primer (A) and operate it 30 times.
Does fuel flow out?
YES -
Go to Step 7 .
NO -
  1. Turn the ignition switch ON (II).
  1. Clear the DTC with the HDS.
  1. Do the FUEL RAIL PRESSURE TEST in the INSPECTION MENU with the HDS.
Is the result OK?
YES -
Intermittent failure, the system is OK at this time.■
NO -
Go to Step 10 .
  1. Turn the ignition switch OFF.
  1. Turn the ignition switch ON (II).
  1. Reset the ECM with the HDS.
  1. Start the engine. Hold the engine speed at 2,000 rpm (min −1 ) without load (in neutral) until the radiator fan comes on, then let it idle.
  1. Check for Temporary DTCs or DTCs with the HDS.
Is DTC P0087 indicated?
YES -
Check for poor connections or loose terminals at the FRP sensor and the ECM, then go to Step 1 .
NO -
Troubleshooting is complete. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC's troubleshooting.■