Hi guys,

I spent the majority of my day trying to figure out WTF this code is and where the sensor is. All data gives the testing process, but doesn’t tell you what the part number is or where the darn thing is located. I’ve searched every Internet forum, Facebook post, Reddit thread. I’m at a total banging my head into the wall spot.


Every time I start the car the CEL comes on. Plug in my Foxwell NT710 - P0183-00; Fuel temperature sensor A circuit high input.

I am at a loss. I cannot find the sensor. The best I can figure is when I did the passenger side fuel injectors, the sensor at the back of the rail by the firewall is the problem? I thought that was the fuel pressure sensor but….maybe it does both. I’d like to be sure before I go tearing into that area again.

Any help would be super appreciated. It’s just been problem after problem since inheriting this car after my dad passed. He had it for years and never had these domino effect problems I am. LOL.

 

The sensor you mention on the passenger side of the engine is the high pressure fuel sensor. There is also a low pressure fuel sensor on the top of the fuel tank to monitor the LPFP.

I find no fuel temperature sensor on the 5.0L engine? BUT the older 4.2L SC and NA both have one? I also find the 2.2L Diesel has one.
I wonder if that code reader is wrong?

Strange but I did find one mention of it on JaguarLandRover Classic? With a part number of AJ810514. However that is the only place that lists the XJ as having one. I have several manuals and a Jaguar Engine Management guide with no mention of this sensor at all? Plus other Jaguar part suppliers plainly show this part number does NOT fit the 5.0L engines and again is used on the early V-8 and V-6 engines.

Here is the picture;




Fuel Temperature sensor

I think this is wrong because the 5.0L has DI and looks nothing like that picture which to me is plainly the older 4.2L engine setup.

Look at this?
Jaguar Code P0183-00
Note it mentions a combined fuel pressure and temperature sensor? I guess as a hail Mary pass I would change the fuel rail pressure sensor you mentioned? I don't think it's too expensive.

Does the car have any problems other than the light?
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I think it's why I've been beating my head against the wall. AllData gives a testing procedure for this trouble code - but - it doesn't help as it doesn't show where the sensor is, what part numbers, etc etc. I've attached what my scanner shows and what AllData shows. But I have no idea how to fix this code. Like I stated in my post - every single time I start the car this code triggers and the CEL fires up on my dash. It's only started the last few days. I believe Friday it triggered and every time I drove the car, which was all Friday and Saturday, this code would trigger. I've been driving around with my scanner connected just trying to see what is what..going crazy. LOL

At this point because I'm simply tired of suffering this car and the BS it's continually giving me I'm going to go to the Jaguar Dealership and buy a brand new fresh battery. Though mine's a 2021 battery and lives on a battery tinder - so it's fresh and fully charged all the time - I'm just going to rule that out.

***The Random Misfire on 6 & 7 is something I have been chasing as well. All 8 fuel injectors, spark plugs and coil packs are BRAND NEW - properly gapped, etc. So I have NO idea why I am getting misfires and the charge cooler efficiency is wild to me as well, but it will soon be swapped out for a Wraptor Performance all aluminum charge cooler so...I'll chase that another day.

 

Any chance the IC pump is not working 100% with those codes? Generally if it's not working that will throw the car into restricted mode when you jump on it hard.
The miss fire codes are listed as historic? Do they go away when clearing the codes? One thing I do like about Jaguar's SDD is they also show at what mileage the error occurred.
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The car has never gone into restricted performance mode since I've had it, funny enough. At least a message has never popped up saying anything is restricted or somehow limiting me in anyway. The car acts funny on cold starts. That's when I get the misfire codes. When the engine is cold it runs pretty rough, somewhat shaky and sounds like she's got a reasonably big cam installed. LOL. Once she's warmed up - generally 2-3 minutes later - she settles down and idles smoothly. But that misfire code is usually triggered by then. Once I clear it they go away until I go a couple days without driving the car and a proper cold cycle is done again. Then they come back.

I'm really trying to get this thing tuned up, dialed in and running well. I inherited the car when my dad passed away last June with about 70,000 miles on it. It's got 78,000 now. I've dumped a LOAD of cash into getting the body work and wheel damage he caused repaired, new brakes all around, new headlight housings (which are NOT cheap), all new fluids, new fuel and ignition etc etc. It seems to be one thing after another though. But I'll eventually get it done.

I've been reading about this Jaguar SDD. Do you know where / how to get it? I'm not too keen on this Foxwell for diagnostics. It gives broad information on that side. I bought it so I could clear oil / service intervals, bleed the brakes, etc etc. It's not a very powerful diagnostic tool - in my limited opinion,.

 

Yea I hated to bring up SDD?
But it's a big subject with lot's of confusion.
So I will give you a set of search results so you can explore and see if you even want to pursue that.
SDD Information

The moderators are attempting to keep the SDD stuff in their own threads because they get so big and complicated.
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OOof. This is going to take a bit of investigation! LOL. Thank you!

 

Yea I don't like it but I put in the time to get a working system. I just have not found anything else that works at that level.
The after market scanners are getting better all the time but still seem to be lacking compared to SDD.
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I just called the local (semi-local) Jaguar dealership to me and spoke with a "service" lady. Not sure if she's just trying to get me in to get into my wallet but they essentially wouldn't tell me anything or help me in any way beyond bring it in - for a thru the door fee - then a diagnostic fee - then a fee for charging me a fee, plus a tax on that fee followed by a core-charge fee. LOL.

Clowns.

 

Maybe somebody forum member near you have SDD and are willing to help for some "freshments" in return?

 

I would love that! If someone is in NC…

I am willing to compensate.

 

Good suggestion! We have seen several members offer remote assistance using SDD. I just don't have any experience with them myself.
Maybe someone will contact you after seeing these posts?
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fingers crossed!

 

Well,

after $380 for a 11/24 made battery - that P0183-00 is STILL present after doing all the rests from a new battery. Officially throwing in the towel…

going to pull the right fuel rail and replace the sensor at the back of it.

 

Good luck and I am watching to see if that fixes it!
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at least I’m not stuck in a parking lot this time and know how to get back there “reasonably easy”. Rolled my eyes so hard it hurt.

 

Well, the sensor is out. It’s marketed as a fuel pressure / temp sensor but is not in stock anywhere local. $150 for an official “Jaguar OEM 🙄” and a week wait… we shall see. Guess I’ll clean until then and delete the symposer.

 

Update.

Got a new fuel pressure / temp sensor from the Jaguar dealership and that fixed that particular code.

Another interesting thing, or painfully annoying thing if you’re looking at it from my end, is I found out that spark plugs absolutely matter; at least with my car.

When I changed the fuel injectors a couple months ago, since I was there anyway, I pulled the original 75,000 mile plugs and replaced them with high end, gapped correctly, NKG Iridium plugs at $22 each. I’ve been chasing random misfires for weeks now so I figured with everything brand new now with the new sensor, plugs, injectors, coils, cleaned throttle body, MAF sensors, everything sealed up tight as a drum there is no way I could possibly have any more mind melting misfire problems.

I replace the fuel pressure sensor 2 weeks ago, get it all back together, triple check. Happy meal. All is running good and I’m finally happy.

Driving around and enjoying; CEL on the dash. Because I’ve been here before, my scanner is always with me. Random Misfire Cylinder 3 & 5. No way. WTH. Check all my connections etc. Good to go. Clear the codes, go into live data mode in my tool and go for a drive again while watching the misfire counter.

All 8 cylinders are slowly going up but 3 & 5 are jumping up and tossing the CEL.

I park the car ant home, madder than a wet cat and let it sit for a day as these supercharged 5.0’s take 16 years to actually cool off. Rip it all apart, pull the plugs because why not. Cylinder 3 & 5 have massive gaps. All the others are a couple thousandths over factory gap size (which I think is .043” but I’ve slept since then). Hmmm. Odd. These plugs were insanely expensive and they shouldn’t be eroding away like this. They literally have 150 miles on them. Absolutely astounded as to what has happened and why.

For reasons beyond my understanding I went “well, everything non-Bosch part I’ve put in this car has been a waste of time, money, blood and choice words. I’m getting OEM Bosch plugs. Screw it”.

They’re $11 each from AutoZone.

Gap them, install everything for the 18th time in 2 months, repeat the data log session.

Zero misfires. None. Nada.

Moral of my story - save the money on fancy Iridum NKG at $22. Get the $11 Bosch plugs. It will save you lost of mental energy.

 

IIRC The factory-fitted OE plugs are NGKs, albeit rebadged.
JLR ToPIX identifies spark plug as NGK Iridium ILKAR6C10 (0r ...7C10) with a 1mm gap
< $10 each from Rock Auto, > $11/ea from Ebay.
So it must've been that big gap on them.
But you are right, they are particular on spark plugs - the temperature rating in particular.

 

From AllData, Jaguar Parts (like my local Charlotte Jaguar) and other research since I didn’t have factor my plugs anymore.

The factory plugs are P/N - C2P23089.

That translates to Jaguar Bosch C2P23089.

Which moves over to Bosch 96327 in the U.S. retail store supply.

Jaguar BOSCH Spark Plug

Part Number C2P23089
Manufacturer BOSCH
Manufacturer Part# 96327
Interchange Part# AJ812097, AJ812146, AJ812987