Hello guys, please i need help to resolve an issue i am having with my Jag.

When i start my car in the morning it misfires and the engine does not run smooth at all. i got error codes P0191, P1316, P0300. I noticed whenever i turn on the engine when it is still hot or has been driven, the engine does not run rough. Also sometimes the codes clear on its own and i dont see any code when i scan. Also sometime when i am going up hill it stutters.

2002 Jaguar X Type
3.0 Liters

 

When was the last time you had your fuel filter replaced? That might be a place to start. From the codes you are getting it looks like a random misfire. Generally you would have a code specific to a cylinder, like P030X with X denoting the specific cylinder. Might also be your fuel pump starting to go. Could be a number of things. Start with the fuel filter if it has not been changed in a while and see what you have. That's the simplest, easiest and cheapest place to start.

 

Hello Alfadude, Thanks for the response. I changed my Fuel pump about 2 months ago and just changed my fuelfilter yesterday. I have also changed my 6 set of plugs twice this year.

 

P0191 is a problem with fuel (see the free workshop manual) and a misfire is hardly a surprise if it can't get fuelling right.

Also see the manual for P1316 and treat it as very serious or you may be buying a cat conv as well as whatever else is needed.

 

Id try swapping the fuel filter as its the cheapest option and may cure the problem also maybe try dropping some redex into the fuel tank before you look at the more expensive options that could cause the problem. Msybe your fuel pump is failing or the fuel rail Good luck!!

 

Thanks, I changed my fuel filter few days ago and still same issue. Changed my fuel pump today so will see how it runs tomorrow morning.

 

Good luck hope the fuel pump sorts your problem

 

Verify correct mounting of the fuel filter - the arrow on it points to front of car. Two fuel pumps in last two months - I'd say check fuel pressure at the fuel rail on engine if you're able to.

 

Thanks for the info. So far i have changed my fuel filter and fuel pump.

Just changed my fuel rail that comes with the six nuzzles as well.

Still getting a rough idle and codes
P0193
P0203
P0182

 

Thanks for the Information. I have checked fuel pressure on the rail and sure there is. So far i have changed my fuel filter and fuel pump.

Just changed my fuel rail that comes with the six nuzzles as well.

Still getting a rough idle and codes
P0193
P0203
P0182

 

Worth your while to look up the codes in the free downloads!

 

Thanks guys, So far i changed the Injector system that came with the Nuzzles and 2 spark plugs and the rough idle is gone. But i am still having a problem with the car hesitating when i step on the throttle hard.

 

Are you still getting error codes. Might be worth while changing the other spark plugs as well

 

Thanks man, I am not getting any error code, MIL is also off.