Won't start after changing the air filter
I changed the air filter and when I started it afterwards I have to keep pumping gas and it runs roughly and then cuts down completely.

The Jaguar XK-Series received some minor exterior styling updates for 2005, which freshened up a design that had been around since 1996. And even though the current generation was nearly 10 years old by the time the 2005 XK-Series rolled into showrooms, it didn't feel dated, because of its contemporary sports-car lines and luxury interior appointments. Some critics and reviewers even considered the XK-Series a work of art.
For 2005, the XK-Series consisted of the XK8 coupe and convertible and the XKR coupe and convertible. Jaguar dropped a 294-horsepower, 4.2-liter V8 under the hood of the XK8 models, while the XKR models received a supercharged version of the same engine, pumping its horsepower up to 390. All models were available only with a six-speed automatic, which limited the sportiness of the vehicles, according to some drivers and reviewers. A manual shifting option was provided by the transmission's J-Gate.
The interior of all XK-Series cars was definitely upscale, with lots of leather (seats and steering wheel) and burled walnut (steering wheel and interior trim). Some found the seats a bit flat and unsupportive, a criticism that dated back to this generation's introduction in 1996. In addition, a lot of interior refinements, like the steering wheel, shift knob, and dash, provided a more luxury than sporty feel, although upgrades were available to give the car a sportier look for those who preferred it.
Interior leg room was spacious in the front, according to many drivers, although the back seat could feel cramped for adults. Still, many drivers felt that the XK-Series, with standard features like electronic traction control, stability control, a brake assist system, heated leather seats, and an Alpine AM/FM stereo with a six-disc CD changer, compared quite favorably to the more upscale XJ-Series, and that even the supercharged XJR, with its significant price premium, represented a good value.
I changed the air filter and when I started it afterwards I have to keep pumping gas and it runs roughly and then cuts down completely.
Did my ad post? It is for a 2005 Jaguar XKR in zip code 49424. Posted on 12/19/19.
Why my jaguar xk8 2005 do not have a price analyse?
Air Conditioning
Automatic climate control front air conditioning · Single front air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
CD changer: 6 · Premium Brand: Alpine · AM/FM radio · Remote CD changer location: in cargo area
Brakes
ABS: 4-wheel
Comfort Features
Center console trim: alloy · Dash trim: alloy · Door trim: wood · Shift knob trim: wood · Steering wheel trim: leather
Convenience Features
Center console: front console with storage · Cruise control: adaptive · Dimming rearview mirror: auto-dimming · Easy entry: power driver seat · Memorized settings: driver seat · Multi-function remote: trunk release · Steering wheel: tilt and telescopic · Steering wheel mounted controls: audio
Lights
Headlights: Xenon
Mirrors
Exterior mirrors: heated
Rear Seats
Type: bench
Safety
Parking sensors: rear
Seats
Front seat type: bucket · Upholstery: leather
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: intermittent
Air Conditioning
Automatic climate control front air conditioning · Single front air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
CD changer: 6 · Premium Brand: Alpine · AM/FM radio · Remote CD changer location: in cargo area
Brakes
ABS: 4-wheel
Comfort Features
Center console trim: wood · Dash trim: alloy · Door trim: wood · Shift knob trim: wood · Steering wheel trim: leather
Convenience Features
Center console: front console with storage · Cruise control: adaptive · Dimming rearview mirror: auto-dimming · Easy entry: power driver seat · Memorized settings: driver seat · Multi-function remote: trunk release · Steering wheel: tilt and telescopic · Steering wheel mounted controls: audio
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: power
Rear Seats
Type: bench
Roof
Convertible roof: power
Safety
Parking sensors: rear
Seats
Front seat type: bucket · Upholstery: leather
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: intermittent
Air Conditioning
Automatic climate control front air conditioning · Single front air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
CD changer: 6 · Premium Brand: Alpine · AM/FM radio · Remote CD changer location: in cargo area
Brakes
ABS: 4-wheel
Comfort Features
Center console trim: wood · Dash trim: wood · Door trim: wood · Shift knob trim: leather · Steering wheel trim: wood
Convenience Features
Center console: front console with storage · Cruise control: adaptive · Dimming rearview mirror: auto-dimming · Easy entry: power driver seat · Memorized settings: driver seat · Multi-function remote: keyless entry · Steering wheel: tilt and telescopic · Steering wheel mounted controls: audio
Lights
Headlights: Auto on/off
Mirrors
Exterior mirrors: power
Rear Seats
Type: bench
Safety
Parking sensors: rear
Seats
Front seat type: bucket · Upholstery: leather
Suspension
Suspension control: electronic
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: rain sensing
Air Conditioning
Automatic climate control front air conditioning · Single front air conditioning zones
Airbags
Dual front airbags · Front side airbags
Audio System
CD changer: 6 · Premium Brand: Alpine · AM/FM radio · Remote CD changer location: in cargo area
Brakes
ABS: 4-wheel
Comfort Features
Center console trim: wood · Dash trim: wood · Door trim: alloy · Shift knob trim: leather · Steering wheel trim: leather
Convenience Features
Center console: front console with storage · Cruise control: adaptive · Dimming rearview mirror: auto-dimming · Easy entry: power driver seat · Memorized settings: driver seat · Multi-function remote: keyless entry · Steering wheel: tilt and telescopic · Steering wheel mounted controls: audio
Lights
Headlights: HID
Mirrors
Exterior mirrors: auto-dimming
Rear Seats
Type: bench
Roof
Convertible roof: power
Safety
Parking sensors: rear
Seats
Front seat type: bucket · Upholstery: leather
Suspension
Suspension control: electronic
Tires and Rims
Wheel type: aluminum alloy
Windows
Front wipers: rain sensing