SOURCE: how to fix codes p0190 & p0193 fuel rail pressure sensor codes
The two codes are both about the fuel rail pressure sensor. I would check fuel pressure with a gauge first.
If pressure is low try the fuel filter before anything else.
P0193 FORD 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.
Read more: http://engine-codes.com/p0193_ford.html#ixzz21vmKrzhU
Testimonial: "I've changed the fuel filter, air filter, oil/oil filter, perfored a radiator flush, and the battery and starter tested good."
SOURCE: Crankshaft sensor location
on the block close to the sump and flywheel on the front side of the engine it may differ on other engines above is for X18XE
SOURCE: Vauxhall / Opel Zafira Manuel
http://www.gmproductforum.co.uk/section.aspx?mid=2&sid=2
then simply select your model and all the available brochures are here for you to download at your leisure. :)
SOURCE: MY VW POLO SHOWS FAULT CODE ; P0106 ABSOLUTE MANIFOLD PRESSURE SE
this a map sensor, probably just need the sensor replaced, it measurese intake vaccum and adjusts air/fuel mixture accordingly
Testimonial: "MANY THANKS TO HONDABOY 47. SPOT - ON. PROBLEM SOLVED!"
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