Subject	fuel pressure problems
Posted by	Red Hawk (CO) on July 03, 2011 at 12:30 AM
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Message	recently installed aem fuel pressure gauge. works great. running 35-37 at idle and 44-45 at full throttle. week later the car is 26-30 idle and 34-36 full throttle. hoses are not leaking. just got done replacing rubber lines and filter. im assuming that its either the fuel pump ( assuming its original with 290,000 miles, squeaks somewhat) or the pressure regulator ( also could be original). how can i rule out if its the regulator or not? is it true that disconnecting the vacuum line to the regulator will keep pressure from dropping to normal idle pressure? if so then that should work to rule it out yes? Thanks in advance guys. Bringing respect to the NA one race at a time
Follow Ups	fuel pressure problems - Red Hawk (CO) 00:30:51 07/03/11 Did you use an OEM or aftermarket fuel filter? (n/m) - Samuel (Dallas) 09:46:15 07/03/11 Re: Did you use an OEM or aftermarket fuel filter? - Red Hawk (CO) 22:38:21 07/03/11 When you shut the car off does the pressure hold? (n/m) - Woody75 (Denver) 12:11:13 07/04/11 No. on accessory i can watch it drop 1 psi every 10-12 secs (n/m) - Red Hawk (CO) 16:12:57 07/04/11 Sounds like the regulator - Woody75 (Denver) 18:39:10 07/04/11 Ok. injectors been there for 50,000 miles and are stock. - Red Hawk (CO) 23:38:04 07/04/11
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