Hi all, brand new to the forum. Just recently purchased a 2001 xtype 2.5 v6 sport type (bit of a step up from my vauxhall vectra!). The engine management light flashed up yesterday so i got a friend to plug in the code reader and it has come up with the code p1461. Can anyone advise on what it is and if its serious? Its got a warranty with the garage but they can't fit it in till next week. Any help would be appreciated. Nothing too technical please. I know nothing about cars.
Many thanks.

 

Paul, welcome to the Forums, I think you will find it very nice here. So, grab a cup of Joe, sit back, look around and see what you can find. We are a friendly bunch and like to have fun. So, if you have been by other car forums, you may find us a bit unique. With that being said, please stop by the "New Member" section and introduce yourself. We like to get to know one another. Besides, it will give you a chance to see who the movers and shakers are around these parts.

As for your problem. The code is simply saying that the computer is seeing a problem with a pressure sensor on your A/C system. So, drive away. The only "down side" is you may not have A/C in the vehicle. Overall, not that big of a deal.

 

That sounds better than i thought. I was googling it and it came up with either fuel pump relay no1 or fuel pump primary circuit failure. Thanks for your reply. The a/c seems to be working fine. Is there anywhere i can get a list with the fault codes for my car?
Thanks

 

Just realised i have made a mistake its actually p1641. Oops.!!! Any help would be appreciated.

 

P1641 is available in the list below and show as

P1641 Fuel Pump Primary Circuit

https://www.jaguarforums.com/forum/x...des-faq-18395/

 

So is a fuel pump primary circuit serious? It sounds it.

 

Can you get full revs out of the engine when driving?
If so the pump is OK.
I read somewhere that the fault may clear if the car is left to cool down the driven 'til it is at temperature a couple of times.
That's all I know.

 

Bump>>>>> where's all the X typers and techs when you need them?

 

Ok. I did see that on another site but didn't think it was right as i can't understand what engine temp has to has to do with the fuel pump. Im trying it anyway though. Im assuming this isn't a common problem as when you search on Google all you get is the definition not any how or why. Thanks for your help though. Wish there was someone who could give me a definate answer.

 

Also i can get full revs out the car.

 

Jim, as usual the XK guys have to step in.

 

If it accelerates to full revs like it should with no missing or hesitation the pump's OK.

 

Paul, what I would tell you to do is to go to your local auto parts store and get your hands on a fuel pressure gauge (can normally be rented for free, just have to put down a deposit). Connect it to the car and start the engine. You should see the fuel pressure rise to 30-40 psi (more towards the 40 psi end). When you rev the car, does the fuel rail pressure remain near where it was at idle or possibly even go up slightly? If yes, then odds are your fuel pump is fine. If the fuel pressure falls, then your fuel pump may be on the way out.

From there, you are looking at either the fuel pump module, the wiring between the fuel pump module and the fuse box, or the control wiring to the fuel pump module from the ECM. I would say to first start with looking at Fuse F81 and making sure that it is seated tight in the fuse holder and that the fuse is good. It should fit in tight there. After that, try driving around with the fuel pressure gauge hanging out from under the hood near the windshield (if possible). When you start feeling the car acting up or you see the light flashing on the dash, see what the pressure is doing. If you see the pressure starting to fall, then it may be that the fuel pump is actually bad. If you see the fuel pressure bouncing up and down, then that is an electrical issue. Unfortunately, unless you have some fancy test equipment, you are either going to a shop to have them repair it or you are going to be swapping parts hoping that the problem gets fixed with the first part or two that you replace.

The bad point if it is a fuel pump module or fuel pump is that in order to access the plugs for either of these, you have to drop the fuel tank to the car. Not a hard job, but most will agree that if you are that far and are replacing parts hoping to fix it, then it would be advisable to replace both the fuel pump and the fuel pump module at the same time.

Your call.