Oh dear - misfire

[scharlton]

So after 8 miles of completely normal driving, I slowed and stopped at a roundabout to find a petrol smell and rough tick over. A quick blip of the throttle confirmed something wasn't right with no smooth rpm increase and a rough sounding noise.
Immediately cruised home at slow speed and parked up.
I borrowed a code reader from a friend and it seems I have a plug, coil or injector gone in cylinder 4 as I got;
P228F Temporary Fuel Pressure Regulator 1 exceed control limits - too high
P0300 Temporary Random Misfire detected
P0304 Temporary Cylinder #4 Misfire
P1315 Persistent misfire

Booked into an independents as I don't face doing the investigation on the drive in this weather, on the phone they immediately suspected an injector failure, but I want them to check coil and plug before jumping to expensive conclusions.

Any words of wisdom from you knowledgeable people?
Is British parts the best place for injectors £95 and coils £30?

 

[Lunar]

Pretty sure it will be an injector that’s failed open - and coil or plug down shouldn’t throw a fuel rail pressure issue anyway.
Here’s to it not being fused in due to the mismatched metals reaction

 

[scharlton]

Change of plan, I am going to tackle it myself.
Local garage said this was a known problem and quite often they need to drill out the injector and then reem the hole. Very concerned about how you stop swarf going into the cyclinder with that action.
Found a brilliant youtube video for a guy who did it on his driveway on a 3.0L and it looks very awkward with plenty of grazed knuckles but straight forward.
Can someone confirm cylinder 4 on a V8R is passenger side second one back from the front of the engine?

Anyone got the TOPIX proceedure for changing an injector?

 

[Jaguandy]

If needed, there are people that specialise in removing stuck injectors.

 

[scharlton]

Jaguandy,
Thanks, yes I've seen that, hoping it's not stuck and willing to spend many hours with the special slide hammer tool to loosen it rather than more serious intervention.

 

[RPSN]

Change of plan, I am going to tackle it myself.
Local garage said this was a known problem and quite often they need to drill out the injector and then reem the hole. Very concerned about how you stop swarf going into the cyclinder with that action.
Found a brilliant youtube video for a guy who did it on his driveway on a 3.0L and it looks very awkward with plenty of grazed knuckles but straight forward.
Can someone confirm cylinder 4 on a V8R is passenger side second one back from the front of the engine?

Anyone got the TOPIX proceedure for changing an injector?

Here you go....

Cylinder & Fuel Injector Numbering V6 & V8
https://www.ftypeforums.co.uk/viewtopic.php?f=21&t=4928

Regarding the removal and replacement of seized fuel injectors.....
https://www.ftypeforums.co.uk/viewtopic.php?p=49066#p49066

I’ve also attached the TOPIx document....“F-Type (X152) V8 Fuel Rail RH - Removal & Installation” which includes fuel injector removal & installation.

 

[scharlton]

RPSN,
Thank you so much, massive help.
Vehicle going on SORN and will try to do it over December, taking my time and buying any TORX, Extensions, Torque Wrenches, flex couplings I don't have as I go.

 

[RPSN]

RPSN,
Thank you so much, massive help.
Vehicle going on SORN and will try to do it over December, taking my time and buying any TORX, Extensions, Torque Wrenches, flex couplings I don't have as I go.

I borrowed a code reader from a friend and it seems I have a plug, coil or injector gone in cylinder 4 as I got;
P228F Temporary Fuel Pressure Regulator 1 exceed control limits - too high
P0300 Temporary Random Misfire detected
P0304 Temporary Cylinder #4 Misfire
P1315 Persistent misfire

It's also worth you having a read through these.....

https://www.jaguarforums.com/forum/f-type-x152-72/yikes-7-codes-241215/

https://www.ftypeforums.co.uk/viewtopic.php?f=27&t=5785

 

[Lunar]

Let us know how you get on with this scharlton - fingers crossed it all goes smoothly.

 

[scharlton]

Update;
I changed the coil pack with no improvement. It was fairly straight forward but showed me that I did not want to tackle the injector on my drive. After a bit of phoning around and strange advice about changing all 4 injectors if 1 has failed (either the 1 faulty one or all 8 surely), I decided to entrust it to Tom Lenthall.
The RAC kindly trailered it there and Tom swapped out the injector (not seized in), changed the oil and gave it a good test drive.
Very happy to report, no issues, car back up and running and very impressed with Tom Lenthall (Wokingham).

 

[Lunar]

That’s great news!

I wouldn’t go anywhere but Tom Lenthall now - get great service from him and Adam.
My car was there last week for a service and some work under Jag warranty, which they just get on with authorising without me having to lift a finger. Online service history updated and low battery warnings I’d been getting on a new battery sorted by coding the battery in too.

 

[ekers]

All, last weekend whilst parking I had the dreaded rough idle and limped a mile home on what seemed like 5 cylinders.

I called my trusty independent mechanic to pop over and have a look, error code in pic. We went ahead and changed what we thought was injector number 5, but actually turned about to be incorrect. I have attached a diagram below (based on my reading online).

He then went ahead to remove injector 5 and unfortunately... snap. Whilst he was extremely careful we ended up with an injector in 2 pieces. It seemed to be corroded in but he had a trusted trick up his sleeve. He poured in some coke and left it overnight and after persistenting an hour this morning he cleanly removed and replaced the injector.

I decided to get the injector from Jag and probably massively overpaid but didnt want to risk a part issue. Seems like the Bosch part number is
0261500297 but cant seem to find a reputable retailer of the part... just have to look at it as OEM tax!

I am glad to say injectors all in, some BG44k in the fuel and the cat is running better than ever

Hope this helps a fellow member.

 

[Jimmyrn85]

Old thread I know but I'm interested... How did you remove the coke from the injector hole?

 

[CSGMART]

Thanks for the update and glad you got it fixed.