Why does my Toyota Prius keep hard starting?
Well, after doing a lot of thinking i finally figured out my OUT OF THE BLUE HARD STARTING. It was my Fuel Pressure Regulator. At first i thought it was my ignition coil because the hard starting was intermittent and i ran a test on it and the Primary Resistance was way off spec, but the Secondary Resistance was spot on.
How does the cold start injector work on a Toyota?
The cold start injector most certainly works at temperatures above 32deg. The cold start injector time switch provides a ground circuit for the injector that allows the injector to spray fuel during cranking to help start the engine. The time it allows the fuel to spray is based on what the temperature is.
What to do when your car wont start?
After replacing the FPR, AFM, Temp sensor, fuel filter, checking for codes, replacing the coil, replacing the spark plugs back to factory spec ones, checking vacuum switches, checked distributor, checked idle speed, check EGR system, checked the cold start time switch and valve itself (ohm tested only) and lots more.
Why does my fuel pressure regulator keep leaking?
As seals crack, fuel tends to leak. Problems with the fuel pressure regulator are not the only reasons why you may have a leak in the fuel delivery system. It can be because of corrosion, the presence of contaminants, and problems in the fuel filter.
How does a fuel pressure regulator work on a Toyota?
As soon as the key moves to the run position there is no longer a power supply to the injector. The fuel pressure regulator is a spring loaded valve that allows fuel to return to the tank once the set pressure is reached.
What should the fuel pressure be at idle?
Fuel pressure should be within specifications when the key is on, then drop 4 to 6 psi once the engine starts and is idling. Note: Some vehicle manufacturers list pressure specifications for both KOEO and idle, while others only list a fuel pressure specification for one or the other.
Why does my Toyota Tacoma shut off every time?
Ive replaced the fuel filter, fuel pump, and the fuel pressure regulator, and the truck acts the same. It starts right up and then when it goes to idle it shuts off everytime?? anyone have any good Ideas? Any chance you figured out the problem? I have a 96 Toyota Tacoma that seems to be doing the same thing.
Where is the throttle button on a Toyota 2.4L?
#4: Shows the throttle body (w/ TPS attached to the back side – not visible) with a feeler gauge inserted between the throttle lever and the throttle stop screw (highlighted with the RED ARROW – click on the image for a larger view – and note this is different than the spring-loaded dashpot adjustment screw ).
How big is the TPS screw on a Toyota 22RE?
The typical TPS screw is approx. 5/8″ (16mm) long from the base of the head to the end of the threads. This length seems to fit most applications, but certain years may use a shorter approx. 1/2″ (12mm) long screw, two known years that may have this size are the 1989 and 1990/22RE.