Starting problem

Tiny
AZTCDRGN
  • MEMBER
  • 1994 HONDA PRELUDE
  • 158,000 MILES
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.
Friday, November 11th, 2011 AT 8:49 AM

8 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
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?
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Friday, November 11th, 2011 AT 10:53 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
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.
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Friday, November 11th, 2011 AT 12:06 PM
Tiny
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.
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Friday, November 11th, 2011 AT 12:16 PM
Tiny
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.
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Friday, November 11th, 2011 AT 1:00 PM
Tiny
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.
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Friday, November 11th, 2011 AT 10:38 PM
Tiny
AZTCDRGN
  • MEMBER
  • 2 POSTS
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?
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Saturday, November 12th, 2011 AT 4:59 AM
Tiny
SATURNTECH9
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Yes it is if the fuse has power the relay is working.
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Saturday, November 12th, 2011 AT 5:02 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Check the fuel pressure and ignition sparks. If the sparks are weak, it would result in difficult starting.
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Saturday, November 12th, 2011 AT 11:16 AM

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