Having problems with your 2004 Ford Explorer ?

P0193 code engine stalls, hard to restart intermittent proble

Posted / edited by AnonymousUser on : 15-04-2019

Answers :

In most cases the code P0193 is set due to a bad Fuel Rail pressure sensor.
\015\012Check the fuel pressure while monitoring the voltage on the Red/Pink (RD/PK) wire at the Fuel Rail Pressure (FRP) Sensor. With a mechanical gauge showing 30 PSI, the voltage should read roughly 2.8v, 40 PSI roughly 3.4v.

If the pressure is normal, but the voltage is over 4.5v, check the Gray/Red (GY/RD) wire at the sensor for a good ground. If the ground is good, replace the sensor and recheck operation.

If the voltage is low or normal at the sensor, recheck the reading on a scanner, or by back probing the RD/PK wire at pin 37 of connector 175e at the Powertrain Control Module (PCM) (connector 175e should be the top connector of the three PCM connectors). If the voltage is high at the PCM, but low or normal at the FRP sensor, locate and repair the high resistance or open circuit between the sensor and the PCM.

\015\012If u don't have a digital volt ohm meter or the proper test equip then this job is best left to a shop, but it sounds like u have a defective fuel pump, it is losing pressure at times
that would trigger the fault code P0193 and cause the stall

\015\012My experience? 30 years as a Ford certified Master tech and shop Foreman.
Repair Help & Product Troubleshooting for 2004 Ford Explorer

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