The Evap not showing any alarms, we keep driving it the shop had the pcm Reflashed, now they what to replace the pcm do you hay though on this
What code(s)? does system hold vaccum and release proberly?
gas or diesel?
SOURCE: My check engine light on my 2006 Chevy Equinox
I would bring it back to the shop that did the work. If the code is coming out as a problem with the evap system it is not abnormal for the system to take 2 or 3 days for it to read again.
SOURCE: I GOT A REAL DUZZY HERE GUYS!
P0193 - Fuel injector supply Rail Pressure Sensor Circuit High Input
Possible causes- Excessive resistance in the circuit
- Low or no fuel
- Wiring harness connector of the fuel pressure sensor
- Fuel Rail Pressure Sensor
- Fuel Pump
P0193 Description The Fuel Rail Pressure (FRP) sensor is a diaphragm strain gauge device in which resistance changes with pressure. The electrical resistance of a strain gauge increases as pressure increases, and the resistance decreases as the pressure decreases. The varying resistance affects the voltage drop across the sensor terminals and provides electrical signal to the Powertrain Control Module (PCM) corresponding to pressure.
Strain gauge type sensors are consider passive sensors. A passive sensor is connected to a voltage divider network so that varying the resistance of the passive sensor causes a variation in total current flow.
Voltage that is dropped across a fixed resistor in series with the sensor resistor determines the voltage signal at the PCM. This voltage signal is equal to the reference voltage minus the voltage drop across the fixed resistor.
The FRP sensor measures the pressure of the fuel near the fuel injectors. This signal is used by the PCM to adjust the fuel injector pulse width and meter fuel to each combustion cylinder.
64 views
Usually answered in minutes!
×