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SVT Shelby GT500
Fuel Pressure Quandary
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<blockquote data-quote="70SCJ" data-source="post: 16424424" data-attributes="member: 57556"><p>After my tuner alerted me to a fuel pressure issue on a data log I find my self at a loss. The fuel pressure in the logs and on my aeroforce gauge show about base pressure 45psi and do not vary more that 1-2 psi in any driving condition. I have full return fuel system that has the adjustable regulator after the fuel rails. The car puts out about 16 lbs of boost. I have manually adjusted the fuel pressure on the regulator and I can adjust up or down. The vacuum/boost line is plugged into the factory sensor and teea off to the fuel pressure regulator and to the aeroforce boost sensor. I have attached a mechanical gauge to the fuel rail and can see the fuel pressure come up and down very close to a 1:1 with boost pressure. I have replaced the factory fuel sensor and still get the same readings as before. Could this be a wiring issue from the factory sensor to the PCM?</p></blockquote><p></p>
[QUOTE="70SCJ, post: 16424424, member: 57556"] After my tuner alerted me to a fuel pressure issue on a data log I find my self at a loss. The fuel pressure in the logs and on my aeroforce gauge show about base pressure 45psi and do not vary more that 1-2 psi in any driving condition. I have full return fuel system that has the adjustable regulator after the fuel rails. The car puts out about 16 lbs of boost. I have manually adjusted the fuel pressure on the regulator and I can adjust up or down. The vacuum/boost line is plugged into the factory sensor and teea off to the fuel pressure regulator and to the aeroforce boost sensor. I have attached a mechanical gauge to the fuel rail and can see the fuel pressure come up and down very close to a 1:1 with boost pressure. I have replaced the factory fuel sensor and still get the same readings as before. Could this be a wiring issue from the factory sensor to the PCM? [/QUOTE]
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Fuel Pressure Quandary
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