2001 Jaguar S-Type 2001 Jaguar S Type hesitates

2001 JAGUAR S-TYPE
78,000 MILES • 6 CYL • 2WD • AUTOMATIC
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CVN65
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  • 6 POSTS
My 2001 Jaguar S Type has no acceleration above 3k RPM when is in neutral. When running at 40MPH hesitates, above 45 -50 MPH runs smooth on a flat surface. Uphill at any speed starts hesitating. Engine light comes on but code won't register in the computer. Engine light goes off as soon as i reach a level surface or on a decline. I replaced the fuel filter and problem still exist. Any ideas as to what to check or what should be done to rectify the problem? Thanks
Apr 6, 2010 at 5:42 PM
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CVN65
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Before going forward with the check list that you provided, I used the OBD II PocketScan Code Reader to diagnosed the car and i am not sure what the below results mean or what is telling me to do next. I wrote this down as it appeared on the screen. Any help will be appreciated.

0 Codes
MIL OFF
Monitors
1 INC
EVAP
6 Ready
Misfire
Fuel
Comp
Catlyst
O2 sensor
O2 Htr
Apr 11, 2010 at 11:08 AM
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RASMATAZ
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  • 75,992 POSTS
Start by doing a minor tune-up such as plugs/wires and injection cleaner and see what happens
Apr 11, 2010 at 4:08 PM
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