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Author
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Topic: Fuel pressure drops
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BadASS50
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Member # 2353
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posted
 
 
I was wondering if my pump or reg is going out because as I drive my fuel pressure drops over time. When I start the car, the pressure is at 45, then as I drive for about a half hour, it slowly drops to about 36psi. Also my car hiccups sometimes when I'm on the freeway in 5th gear and I step on it. Do you think that its caused by the fuel pressure drop or maybe a tfi thats going bad?
PS- car isnt stock, its blown/heads/cam/intake/30lbs/255 fuel pump
Posts: 35 | Registered: Jan 2003
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mustangcam302
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Member # 2315
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posted
check your regulator hows that look??? check your plugs too to see if ya have a leaky injector.
Posts: 163 | From: San Diego CA | Registered: Jan 2003
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BadASS50
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Member # 2353
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posted
What would the plugs look like if I had a leaky injector?
Posts: 35 | Registered: Jan 2003
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mustangcam302
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Member # 2315
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posted
black/sooty type tecture
Posts: 163 | From: San Diego CA | Registered: Jan 2003
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Stimson
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Member # 51
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posted
quote:
Originally posted by BadASS50:
I was wondering if my pump or reg is going out because as I drive my fuel pressure drops over time. When I start the car, the pressure is at 45, then as I drive for about a half hour, it slowly drops to about 36psi. Also my car hiccups sometimes when I'm on the freeway in 5th gear and I step on it. Do you think that its caused by the fuel pressure drop or maybe a tfi thats going bad?
PS- car isnt stock, its blown/heads/cam/intake/30lbs/255 fuel pump
Its not the TFI for sure. Do you have an FMU? Have you checked for any vacuum leaks?
Posts: 2373 | Registered: Jun 2000
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