starting problem

1994 HONDA PRELUDE
158,000 MILES
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AZTCDRGN
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starting troubles, when i start the car i have to give the gas all the way, i have changed the fuel pump, fuel filter and the fuel pressure regulator, every time i do the changes it starts good for a day or so then give me the same problems again. seems as though its not getting enough gas but im not sure.
Nov 11, 2011 at 8:49 AM
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SATURNTECH9
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When you have to hold the gas pedal to floor to start the car does a lot of black smoke come from the tail pipe?
Nov 11, 2011 at 10:53 AM
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KHLOW2008
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Check the PGM-FI main relay. It controls the fuel pump and the circuit board tends to fail intermittently. Remove the relay and resolder the circuit board and retest.
Nov 11, 2011 at 12:06 PM
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SATURNTECH9
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Hey khlow2008 doesnt the honda go into clear flood mode when holding the gas pedal all the way to the floor while starting and turn off the injectors like the gm cars?If so the engine is flooding while starting not starving for fuel due to the fuel pump relay not getting power.Because they said they have to hold the gas pedal to the floor to start the engine.Please correct me if iam wrong.
Nov 11, 2011 at 12:16 PM
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KHLOW2008
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Nope, Honda does not have that function. For the year model the most common cause of non starting, stalling after starting and/or long cranking time is the fuel pump relay.
Nov 11, 2011 at 1:00 PM
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SATURNTECH9
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Alright then good to know they need to check fuel pressure when it wont start and power to fuel pump fuse while cranking then.
Nov 11, 2011 at 10:38 PM
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AZTCDRGN
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Only one time did black smoke come out the tail pipe, after i changed the fuel pump then it didnt even want to start so i changed the fuel pressure regulator then it has been starting, sometimes having to hold to the floor the gas. is the fuel pump relay in the same spot as the rest of the fuses and relays, under the hood?
Nov 12, 2011 at 4:59 AM
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SATURNTECH9
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Yes it is if the fuse has power the relay is working.
Nov 12, 2011 at 5:02 AM
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KHLOW2008
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Check the fuel pressure and ignition sparks. If the sparks are weak, it would result in difficult starting.
Nov 12, 2011 at 11:16 AM
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