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2007 Chevrolet Silverado - 2WD or 4X4
2007 Chevrolet Silverado Classic - 4WD or 2WD . What size engine ?
Engine Controls and Fuel - 4.3L
Engine Controls and Fuel - 4.8L, 5.3L, and 6.0L
Engine Controls and Fuel - 6.6L (LBZ and LLY)
Engine Controls and Fuel - 8.1L
6.6 L
DTC P0191: Fuel Rail Pressure (FRP) Sensor Performance
The fuel rail pressure (FRP) sensor has a 5-volt reference circuit, a signal circuit, and a low reference circuit. The engine control module (ECM) monitors the voltage on the FRP sensor circuits. When the fuel pressure is high, the signal voltage is high. When the fuel pressure is low, the signal voltage is low. The fuel pressure regulator has a solenoid supply voltage circuit and a solenoid control circuit. The ECM controls the fuel pressure regulator , which regulates high pressure fuel that goes to the fuel injector rails and the injectors.
Disconnect the negative battery cable.
Remove the rear seat.
Remove the fuel pump access cover.
Disconnect the electrical connector at the fuel pump assembly.
Disconnect the fuel outlet line.
Turn the lock ring counterclockwise to clear the tank tabs.
Remove the fuel pump assembly from the tank.
Remove and discard the gasket.
P2188 System Too Rich at Idle (Bank 1) On a Chevy Aveo I have heard 2 different things that cause this code, 1. Check for any vacuum leaks in the intake , and 2. Check for oil bypass in the cylinders, Personally I don't know which is correct , But figured I could give you an area to check , Good Luck
Have you replaced the fuel filter? How about checking the fuel press at the pressure regulator and fuel rail? Is your throttle body and tps sensor clean?
if its a 5 speed, yes the shifting is loser than normal cars. the reverse is all jacked up.. if its anything like my 06 aveo when you shift into reverse you have to lift the little circle thing on your shifter up ad act like your putting it into first.. If it grinds try doing it slower. I HATE this transmission. Chevy did a horrible job on picking it. I always grind reverse no matter what
When this happens, my first suspicion is that the system needs charging. If you don't have a gage to check the low side pressure, you can bypass the low pressure switch by removing the connector and placing a paper clip across the terminals in the connector. If this allows the clutch to engage, charge the system. If not, then read the diagram at the link to see other possible causes, such as the fuse, the relay, or the control panel. http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=136025
That was no help, thank you anyway. It just didn't pull up any results
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