My 2005 Jag 3.0 X-Type is harboring OBD codes P0300,301,302,303,304,305,306 and P1316 and this file supposedly needs loaded into the ECM to correct this issue.

 

I don't have any information about the software but you are experiencing misfire on all cylinders. My first check would be to make sure the connectors to the coils are clean and dry. My next check would be to follow the wire bundle to the ground point. All of the coil wires go to one ground point. Corrosion at the ground point will cause multiple misfires.
If your scan tool has the capability to check fuel trims you need to record them at idle and at 2500 RPM's. That would help us determine if you have a vacuum leak that is affecting all cylinders.
With the multiple misfire it is either a bad ground or a vacuum leak. I doubt flashing the ECU would fix the problem.

 

Thank you for your advice! I do know that the software is a suggested route to take along with checking the particular ground that is pointed out in the ALLDATA Powertrain Management Technical Service Bulletin from September 11, 2006 for the X-Type. The reality is that the Jag is running very well in spite of the all these codes so it must be a very subtle matter that is being picked up by the ECM. That is why I was curious as to what the "patch" is actually interfacing with in the ECM.

 

Welcome to the forum Misfired,

I've moved your question from General Tech Help to X-Type forum. This is the place to post technical questions about your model.

Why did you decide to scan for codes - the MIL illuminated? If not, how long have they been stored? Now you have the list of codes, the logical first step is to clear them and see if they reset. Flashing the ECU is a drastic measure and definitely not the first stage in resolving this selection.

Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some information about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.

Graham

 

Technical Bulletin 2002 - 2006 Jaguar X Type

 

Folks, I know what information you have provided. Unless you have the answer, well let it go. Thanks for trying though.

 

I know that we are not giving the answer you want. But. 1 flashing the ECM is a very last resort as that is not always successful and you will look at replacing the ECM and having to pay someone to program it. 2. You should really get the fuel trims checked and post them.
They are the key to diagnosing the misfire. We do the best we can to help but need the information to successfully be of help.
If you are not interested in providing the info then you will find that a Jaguar will eat a large hole in your wallet when guessing and throwing parts at a problem.

 

Avern1, Thank you again for weighing in.

The fuel trims were checked by Bobby Rahal Jaguar here in Pittsburgh along with monitoring the O2 sensor and found to be within range. It would have been better if they reported exactly what they were but I have been trying to work with them. The only issue I am having despite what I gather are their best efforts is trying to learn what this software patch fixes which I found by googling my problem. ALLDATA XT303-024 is a Jaguar recommendation for this problem and this patch is supposedly the answer. Prior to that I had Rahal do the latest recall by Jaguar for a software update with J004 completed (my vehicle had not had that update). Rahal told me that the patch I seeking more information on was not included in that software update.

At this point B.Rahal Jaguar is recommending that the fuel injectors be cleaned along with the throttle body. All plugs and coils are new within the last 300 miles along with the valve for the brake booster vacuum line. A new fuel filter has also been put in place. So instead of paying Rahal their estimated $450 for their recommendation I am having a local shop do all this for about $100 and per Rahal I have added BG 44K fuel treatment to the tank. BTW the O rings for the intake manifold sensors I have also replaced.

So my story may come to close this week once the injectors are cleaned... that is if the Rahal recommendation is correct. Again thanks for replying.

 

I believe you may be operating under the wrong assumption. The "patch" is a software upgrade patch, not a "fix" for the car. The "fix" is cleaning the contact point as described where a glue accumulation is usually the root cause of the 1 or numerous error codes.

 

The stated "patch file 3" is the oldest software for the Jag software, newer versions have been released after that one with the "fix" patch intigrated.

 

This is the most recent update released October of 2016, this link may or may not still allow free downloading, idk.

https://www.linkedin.com/pulse/free-...-angela-huang/

 

Dell... Thank you for trying to be of help. I was told by Rahal Jaguar that the latest software update for my X Type did not include the patch I am seeking information on... so I am obviously in a Kafkaesque state. If the ALLDATA information is merely a gathering of all manufacturers recall notices, etc. then it should be integrated in the latest update that I was advised and then had completed.... but B Rahal said no it was not.

I have contacted Jaguar USA and they have created a "Case" number and I hope to hear back from them soon. In the mean time I am doing what every one suggests needs addressed.

My one concern is that B Rahal stated that the recall notice I had completed (J004) was my only outstanding update or "Flash" and that it was emissions related. So my concern is did Jaguar "tighten the specs somewhat" thus resulting in OBD codes that before were not present?

 

You have hit all but 2 of the normal vacuum leak areas for the X-Type. The first on the list is examine the hose that runs from the camshaft cover to the intake manifold a the front of the engine. That is PCV hose. Is it a smooth hose? If it is have it replaced with the updated Ribbed hose. Take a look at the underside of the hose that is where it chafes and cracks.
Last is the intake manifold upper and lower gaskets.
Either of those 2 areas will cause multiple cylinder misfires. Again fuel trims are the most helpful data. The shop doing your injectors should be able to read and record them. I would ask for a before and after reading.

 

Avern... I do have the ribbed hose so we are good there. But I could just kick myself now for not doing both of those gaskets when I did the plugs and coils... but it will only be about a hour job so I will get that done. Again thank you ! When all is done I will follow up with a post. BTW. B Rahal does not make note of the fuel trims (I called back to ask again) but did say they were within "range."

 

The misfires can be caused several ways. The "patch file" is very unlikely to be any help at this stage and in any case the equivalent or better software should be in your car by now anyway.

No patch file is involved with the TSB you mentioned.

As part of ruling in & out possible causes I'd pay attention properly to fuel trims. What you've said so far makes it look like this has NOT been done or has been ASSUMED ok.

Not hard to DIY so you know for sure.

 

Lol, I gave up trying to get the point across that the software w/3 patch (old version) was not the solution.

 

Forum guys who have been responding to my misfire story... thanks. OK I will now except the fact that the "patch" I have been seeking info on is not the answer to my problem. I again contacted B Rahal regards fuel trims and was told point blank that they were within range when checked. I believe mentioned I had a "drip" to clean my injectors along with running BG 44K through the fuel system. The codes remained. The ground that was the subject of the ALLDATA notice with the patch has been cleaned. And to repeat, I have installed a new fuel filter, plugs with proper gap, coils, and rake booster valve. I have several times sprayed starting ether around all vacuum hoses/connections with the engine running and there is no change in rpm level. I have today installed the upper intake manifold gaskets and I am left to think of two final routes to pursue... new MAF before giving in to taking the heads off and having them done along with a head gasket.

 

Update to any still following my post: I have replaced the Autolite plugs with NGK Iridium Laser plugs (.054 gap) as several folks suggested I ought to have OEM plugs in the car. I have now replaced the lower intake gaskets and had another foreign car specialist "Foreign Traffic" Allison Park, PA who repaired successfully two of my earlier Jaguars ('58 XK150 and '01 S-Type) check for vacuum leaks (none), fuel pressure (good), and all negative grounds for problems (again none).

So I repeat my first post, does anyone know about this software patch? It is becoming more obvious that I may have a computer issue and I wonder if the patch is the solution? Thanks to all who have offered their suggestions... we should be real close now to the solution as I have implemented all suggestions.. so who knows about the patch?

 

Jaguar WDS was the newest diagnostic UP UNTIL 2006. (I worked at the dealer during this transition)
Jaguar IDS was issued in 2006 as a replacement to WDS.
Jaguar WDS 42 and IDS 42 were issued simultaneously. (WDS used CDs and IDS used DVDs)
Jaguar WDS 43 and IDS 43 were issued simultaneously. That was the LAST update for WDS!!!!!!!!!!!!!!!! (including file patch 3)

DVD 101 was issued as a software update to IDS. Then DVD102, DVD103 et cetera!!!!!!!!!!!!!!!

There are no more updates for WDS beyond version 43!!!!!!!!!!!!!!!! end of story!!!!!!!!!!!!!!!!

If you want to reflash your ECM, then use IDS version DVD101 or later software!!!!!!!!!!!

IDS version 118.5 is the LAST version of IDS! Find someone with that software and a VCM. That will be the latest software available for your car!

SDD will likely revert to Legacy IDS (version 118.5) so that will be another option.

bob

 

Thank you Motorcarman, sharing your knowledge has been very helpful. I guess besides still trying to figure out why I am still getting all of the codes after all I have done is to ask why was Patch file 3 suggested to be done along with checking the negative grounds? As several folks have said, my problem was not software related but. well every thing else needing to be checked. And I now think i have done just about all of that. Well Jags are fun to own but sometimes ya just want to scream!