14 psi
On a 2000 Passat 1.8L turbo, the fuel pressure should be around 50 psi at idle with the manifold vacuum connected to FPR. When disconnected, the psi should be 58.
The TURBINE inside a turbo-charger stops spinning when the vehicle is at idle because there isn't enought exhaust pressure to keep it spinning, lowering the internal engine pressure. creating less wear on the turbo and engine also alowing the engine to idle.. if it was to continue forcing air into the engine it would also need to force gas. to match the air fuel ratio to keep the car from dying, causing the engine to rev.. not stay at idle..
A 1990 Chrysler LeBaron not holding idle could be caused by several issues, including a malfunctioning idle air control valve (IAC), vacuum leaks in the intake system, or a dirty throttle body. Additionally, problems with the fuel system, such as a clogged fuel filter or failing fuel pump, may prevent the engine from maintaining a stable idle. Lastly, issues with the ignition system, like worn spark plugs or a faulty ignition coil, could also contribute to idle instability.
At idle or deceleration.
fuel pressure at idle, air to air after cooled 3406, caterpillar diesel engine
If your 1985 Chevy Corvette won't idle and the fuel pressure is only 40 lbs, first check the fuel pump to ensure it's functioning properly and delivering adequate pressure. Next, inspect the fuel filter for clogs and verify that the fuel lines are not pinched or leaking. Additionally, examine the fuel pressure regulator for proper operation, as a malfunction could also affect pressure readings. Lastly, consider checking for vacuum leaks and inspecting the idle air control valve, as these can impact idle stability.
NO.
Your fuel pressure drop could be do to a clogged filter, pinched line/hose, or a weak fuel pump. You should have around 35 psi at idle and 43 off idle. I hope this helps answer your question.
according to my pressure gauge on a 99 gst at idle about 50 and 3200 about 75psi
Idle speed is computer controlled and is not adjustable.
Incorrect fuel pressure. Plugged fuel filter.
Standard fuel pressure for a 91 Pontiac Sunbird is between 50 and 55 PSI. This is the idle pressure to allow for maximum efficiency of the fuel injectors.