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Is the car hesitating or drive ability issues? its normal for the fuel pressure to jump up when vac line unplugged.
nothing so far sounds out of spec. no gas in the vac line. you could do a leak down check. is the fuel filter clean?
As for the p0335 crank position sensor. check the connector and harness for problems.If you have a scan tool.
disable the ignition and crank the engine and see if you can read a crank rpm. if not replace the sensorC8-)Code 335 is EGR related for the DPFE sensor. There notorious for failing on Fords.
Here are some video’s by Scanner Danner that may help you –
http://www.youtube.com/watch?v=znw-gjLE … 6waNYZU%3D
http://www.youtube.com/watch?v=pH_kjRwD … k2Q6A5Q%3D
Yea it doesn’t sound like your problem is fuel pressure related, that is a great video BTW and it should help you.
@ dreamer2355 thanks for the vids links it helped me narrow down the 335 code@ collegeman i made the same mistake i looked it up online and somewhere it showed to be the crank sensor, then i looked up on the mitchellondeman and it was the dpfe sensor. it
You didn’t say if the vehicle is showing any symptoms or not.
To answer your question – yes, you can have good pressure but not volume, and vice versa.These guys did an excellent video showing one scenario: http://www.youtube.com/watch?v=K7qVwQSZ6OU
@johnzcarz Sorry about that.The car had a no start condition, but it got fixed after replacing the fuel pump and fuel tank because of rust issues.And after that i found a vacuum leak, fixed it and then the car ran great. I
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