P0194 Engine Code Repair
Meaning of P0194 engine trouble code is a kind of powertrain trouble code and when your car's 'P0194 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.
P0194 Fault Symptoms :
- Check engine light comes on
- Engine stalling or misfiring
- Engine performance issues
- Car not starting
If one of these reasons for P0194 code is occuring now you should check P0194 repair processes.
Now don't ask yourself; What should you do with P0194 code ?
The solution is here :
P0194 Possible Solution:

Power Steering Pressure (PSP) Switch Signal Malfunction The PCM counts the number of times vehicle speed transitions from 0 to a calibratable speed. After a calibratable number of speed transitions the PCM expects that the PSP input should have changed. This DTC is set if the transition is not detected. Vehicle towed with engine running Power steering hydraulic concern was repaired but DTC was not erased PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged Check, if possible, if vehicle was towed or power steering service was performed. Observe PSP V PID while checking wires for intermittents.
P0194 Code Meaning :
P
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine
0
Intake Valve Control Solenoid Circuit Low
1
Ambient Air Temperature Sensor Circuit Low
9
Ignition/Distributor Engine Speed Input Circuit Malfunction
4
Exhaust Gas Recirculation Sensor B Circuit High
The oxygen (02) sensors on your car measure the oxygen in the exhaust to determine how rich or lean the ratio of fuel and air are in the cylinders. Optimizing this mixture means better fuel economy and fewer exhaust emissions.
P0194 OBD-II Diagnostic Powertrain (P) Trouble Code DescriptionP0194 OBD-II Trouble Code 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 r P0194 code.Main reason For P0194 CodeThe reason of P0194 OBD-II Engine Trouble Code is Ambient Air Temperature Sensor Circuit Low. |
Parts or components should not be replaced with reference to only a P0194 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.