I have a 2001 jaguar s-type and idles rough intermitadly and will stall

you have a air leak check the vacuum pipe going to the brake servo/booster from the induction housing below the throttle body if not it could be the servo/booster i think the pipe is a black plastic pipe and can fracture

spark plugs good

Hi.

P1383 is one of Jaguar's own codes. You can find the code even in other engines (e.g. Ford). P1383 means : Variable Cam Timing Overretarded (Bank #1).

Symptoms:Rough idle, engine stalling.

Here possible causes:

Cam timing improperly set.

Continuous oil flow to the VCT piston chamber.

VCT solenoid valve stuck open.

Camshaft advance mechanism binding (VCT unit).

Solution: the part in the Variable Cam Timing listed above must be tested and repaired.

Regards.

Ginko

Hello... Where to go next depends on how the Evap Gross Leak was fixed... Post it...

Thx.

check for air leaks or vacuum leaks around intake at the throttle body, be sure the rubber on the plastic of the air intake is sealing on the throttle body. may also have bad valve cover gaskets allowing oil into spark plug holes deteriorating the coil boots and causing a misfire.plugs will be good til about 80,000miles

PO430 = Catalyst System Efficiency Below Threshold (Bank 2) You may still have a sensor fault in the combustion/injection system, You need to get this checked at a garage with the correct monitoring system for while the engine is running. Or take a gamble and change sensors. Hope this helps - good luck.

HAVE THE COOLANT TEMP SENSOR CHECKED TO SEE IF IT IS FUNCTIONING PROPERLY.HOPE THIS HELPS. BEST OF LUCK. LET ME KNOW?

o2 sensors often cause a rough idle at stand still. Previously my xj8 had crank case ventilation (pvc valve essentially) issues that caused the check engine w/ restricted performance. I noticed a severe drop in gas mileage as well. Jaguar dealer fixed my problems in a few hours and it was surprisingly cheap. Its worth taking it to advanced or auto zone to see what the computer says. Then decide if you want to shell out for a dealer fix or if you can tackle it yourself. BTW, just to justify myself this is my third jaguar. I have a '94 xj6 with a chevy 350 inside it, previously owned a 95 XJ6 and currently have the xj8. They are wonderful cars if you can put up with their rough times.

whats the fuel pressur like last time the fuel filter was changed and is there flow at the ehasut

My mechanic said that the front cxygen sensors needed to be replaced on my 03.