Cataliyst converter bank one; heater valve; etc. for Jaguar typeS

On this vehicle the heater control is electricaly operated valve by the engine so check this valve is working and it has power when heat control is turned on.

Had the same problem an old hose had a hole in it. changed hose,problem solved. also bank 1 is passenger side. i have a 2000 jaguar stype.

+ enlarge image Eastern Catalytic Converter
App: 2000-2001 Jaguar S-Type
Brand: Eastern
Location: Driver Or Passenger Side Warranty: Eastern's 5-year or 50,000-mile warranty Price: $76.09

Quantity
Make Model Year Range Chassis/Engine Jaguar S-Type 2000 - 2001 Base; 6Cyl 3.0L;

I don't have a diagram but I have uploaded photographs and information at http://www.bluejag.co.uk

Jaguar runs there cylinder numbering different then the north american engines. They go from 1-2-3-4- front to back and bank 1 and bank 2. Bank one is on the passenger side and bank 2 is on the drivers side. This is the s type DOHC V8 (AJ28) engine for your car.

2000 4.0 jaguar s type cylinder firing diagram:
FRONT OF CAR
5 1
6 2
7 3
8 4

I recently starting having this problem also (only code p0305/308). That code means "miss-fire" on #2 cylinder. The #2 cylinder is the nearest cylinder on the right (closest to front of car on drivers side) if you are standing in the front of the car.

i am sure i posted this solution before the dual heater control valve is located looking front of car behind radiator left hand side low down very hard to get at probably better to get access from under car i have the same problem with my car i am trying to pluckup the courage to do it

Sounds like its the blend door actuator has failed or loose or cracked vacuum line going to it. These are usually not fun to replace although I dont know about your specific model, but most that I have seen you have to remove the dash.