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1992 Acura Legend L

Tiny
PRINCESSMARYLYN
  • MEMBER
  • 1992 ACURA LEGEND
I have a 1992 Acura Legend L. I have replaced the fuel filter and fuel pump and it's still acting like it was before. I drive it for a little bit, turn the car off, go to turn it back on and it start but dies right away I go to turn the key and it won't start. It sounds like it's not getting gas.
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Sunday, January 2nd, 2011 AT 6:53 AM

2 Replies

Tiny
DAVE H
  • MECHANIC
  • 13,384 POSTS
Have the fuel pressure regulator checked

Fuel Pressure Regulator
Fuel pressure regulator maintains constant fuel pressure to injectors. When the difference between fuel pressure and manifold pressure exceeds 36-50 psi (2.6-3.5 kg/cm2 ), the diaphragm is pushed upward, and excess fuel is fed back into fuel tank. A vacuum-operated diaphragm inside the regulator maintains fuel pressure at a specific range. This allows for changes in engine load.
At idle, intake manifold vacuum is high, causing diaphragm to be pulled up, thus reducing fuel pressure. When throttle is depressed, intake manifold vacuum decreases, and regulator spring overcomes manifold vacuum. This causes fuel pressure to increase.
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Sunday, January 2nd, 2011 AT 12:37 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Check for a bad PGM-FI main relay. They are known to intermittently fail for the year model and resoldering the joints on circuit board works. This relay controls the fuel pump.
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Sunday, January 2nd, 2011 AT 1:01 PM

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