I have a 93 mustang and I'm having issues with the fuel pressure dropping with rev. I bought the car with mods already done and no vacuum line were ran to adjustable fuel pressure regulator or EGR. The brakes were a little hard to push in at times so I ran the vacuum lines from fuel pressure reg. and EGR to edelbrock performer ii intake. The brake issue is better but now the fuel pressure drops and the car has a slight hesitation when rev. I changed the fuel filter with no luck. Any suggestions?
Fuel Pressure Decreases With Rev
- Thread starter Lxstang282
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The local parts store will rent or loan you a vacuum gauge if you don't have one. At 650-725 RPM and a stock cam you should have 14.5" to16" of vacuum.
Dump codes sticky
Look at the top of the 5.0 Tech forum where the sticky threads are posted. One of them is how to dump the computer codes. Codes may be present even if the CEL(Check Engine Light) isn’t on. I highly suggest that you read it and follow the instructions to dump the codes. http://www.stangnet.com/mustang-forums/threads/how-to-pull-codes-from-eec4.889006/
Dump codes sticky
Look at the top of the 5.0 Tech forum where the sticky threads are posted. One of them is how to dump the computer codes. Codes may be present even if the CEL(Check Engine Light) isn’t on. I highly suggest that you read it and follow the instructions to dump the codes. http://www.stangnet.com/mustang-forums/threads/how-to-pull-codes-from-eec4.889006/
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