![]() We hope you enjoy the excellent technical knowledge, event information and discussions that the BMWMOA forum provides. Check "Remember Me?" if you wish to stay logged in. ![]() The “straw theory” should keep the line full, and that should enable near-normal starts.īy the way, the carbon coated plugs support the leaky injector pintles/seat theory as well.Welcome Guest! If you are already a member of the BMW MOA, please log in to the forum in the upper right hand corner of this page. Truth is that if the injectors are sealing properly the car should run fine even if the check valve isn’t. If it still needs a moment to pressurize, you can then change your pump assembly. That should improve the start problem considerably. I would not be surprised if the injectors’ pintles and/or seats were eroded after 14 years. You can have the injectors bench tested, and I would recommend it. Similarly, if an injector isn’t closing completely and the check valve isn’t working, the fuel line will drain back into the tank. The fuel line works like a drinking straw, if you hold your finger over the end of the straw and lift it, the fluid stays in until you lift your finger and allow air in to displace the fluid, then gravity takes over. ![]() For the fuel to drain down requires that you also have an injector not closing properly. Then when you turn the key to ON for a few seconds the pump refills and repressurizes the system.įor the line to lose pressure takes a faulty check valve, a part of the fuel pump assembly. What I suspect is happening is that the fuel line is draining down when you turn the engine off. The fuel problem and the green light not flashing when the key is turn to ON position could be two separate coincidental problems. When I press on it, makes click noise and doesn’t do anything. ![]() How do I check the fuel pressure?ĭoes anyone know how to disable the Code Alarm remote starter? It has a two button fob. Does Acura 2000 TL have a fuel pressure check valve. It seems like the fuel line is not holding pressure. It gives an extended crank when I shut of engine and starts right away. The car starts right away if I put the key to ignition ON position for a few second otherwise it gives a delayed start. It is giving P1607 in the OBDII scan which could be because of the immobilizer bypass enabled. I don’t know whether he enabled the remote start which was disabled and the car is now starting with immobilizer bypass. He did something under that dash and the immobilizer light stopped working and the car started. He said then that the problem was due to remote starter or the security system. The car drives well under any acceleration.Īnother thing is that when the car did not even crank, the AAA guy did some repair like work under the dash. Perhaps, my my phone is not picking it up. I could not hear any hum noise or hiss noise. I put my cell phone in the trunk and put the voice recorder to hear the fuel pump priming. I swapped the battery under warranty for amperage sufficiency and no improvement. I cleaned all the spark plugs as they were black and no improvement. I removed the vacuum hose from fuel regulator to see any leaking gas through the diaphragm and no gas leak noticed. I swapped the fuel/main relay with a new one, no improvement. Let us know what you get with this test…its rather important and will weed out many other items all at one time. The pump will then begin to run constantly after the Engine ECU receives an RPM Signal…indicating to the ECU that the engine is running and in need of constant Fuel pressure or flow.Īfter this test it will be time to move on to a Fuel Pressure test…and or a Fuel Flow Test. If you get the Hum or Hiss sound AND all your dash lights are illuminating… that means your Main PGM/FI Relay is working and is at least TRYING to run your fuel pump for a brief 3 second pulse so it can prime the fuel rail. It will basically sound like a Hiss…or a Muted Humm or SHHHHHHHH sound. You SHOULD Hear the fuel pump PRIME the system. Hold your Breath and LISTEN…When you get the key to the RUN position…and the dash lights fully illuminate (Dash lights are IMPORTANT) You must get all the dash lights lit up during this test as it is a function of the PGM/FI Relays duties Turn the key from the zero position all the way to the RUN position…DO NOT CRANK. Could be as simple as an Old Clogged FUEL FILTER…OR a clogged or NON VENTING Fuel Tank…Both will induce very similar symptoms…ĭo This…Get in the car with the windows UP…preferably in a quiet area… Shut of radio or any other noise makers.
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