I got this code today, and it's a injector performance code. I can change out the injector no problem, but can anyone confirm which cylinder is cylinder #5? Is it the driver side front cylinder or the passenger side second to rear? Or am I totally off base in left field. Just looking for a confirmation thanks. It's a 2015 f type R.

 

 

Thanks, I really appreciate it.

 

Are you sure Lance?
Coz my copy of the 2010-2011 XFR Workshop Manual shows this diagram:


If that is correct then cylinder #5 is second from the back on the left bank (facing the car), or passenger side on a LHD car.
I'm sure I've seen better diagrams on this forum somewhere maybe one of the resident tech gurus can help.

 

 

Ok now I'm confused again. So is it front driverside or second last passenger lol?

 

 

Good idea. I will try this tomorrow.

 

Lance's picture came from this document...
https://www.dropbox.com/s/1ek33ux7tf...guide.pdf?dl=0

This is a good document on the V8, though I didn't see cylinder numbers or firing order. Does discuss injectors.
https://www.dropbox.com/s/ga083yv0w3...%20V8.pdf?dl=0

 

I unplugged the drivers side front spark wire, and got the code ignition coil E. So I'm guessing that E is the 5th letter in the alphabet, so that means drivers front cylinder is cylinder 5.

 

Ran into a more major issue. It looks like the injector is seized into the head. So I'm already started my teardown to pull the motor. Looks like a very easy to pull block compared to all the other motors I've pulled before. Does anyone have some technical info, as the torque sequence for the head bolts and how much torque? That would be insanely helpful. Thanks

 

The 2nd document I posted above shows an injector removal tool and how to use it.

The V6 repair manual has the sequence for the V6 only. Anyone have a V8 manual to share? You can presumably get what you need off Topix, though I’ve never tried it.

 

Yeah I have the tool and I've let it soak in pb blaster and it's not coming out. It ended up breaking in half. So the only way to get it out is to remove the head and get it out that way.

 

Your best bet is to ask forum member davetibbs, possibly by PM. I'm fairly sure he has the exact details you want.
He has totally rebuilt the AJ133 SC in his XF (exact same engine as in your F-Type R), see this thread: https://www.jaguarforums.com/forum/x...ebuild-177468/

 

I just sent him a PM. Thanks

 

So I was halfway through tearing the car apart and decided to try something different to get the injectors out as they all were siezed in. I hooked up the injector puller to my cherry picker and cranked it out. The force to pull them out was brutal. Literally lifted the car off of the Jack stands a little. Got all 6 out like that, but I had 2 more broken ones. I unbolted the motor mounts, and lifted the motor up to get a straight shot at the injectors that were both on the drivers side head. I drilled and tapped the injector. Took the shrader valve out of my compression tester, and put it into the spark plug hole and closed the valves. Turn my compressor on full blast and hooked the bolt to a chain to my cherry picker and bang they both came out. I've never encountered anything like this and I've been working on cars for years. I've ran into some stuck injectors but not some that will lift a car smdh.

 

What would cause one or two fuel injectors to get stuck that hard?

 

They all were stuck like that. If you look at the tips of the injector below the compression ring its coated with carbon. Carbon builds up onto the tip of the injector and locks the injector to the head.

 

I think driving this car soft or babying it is a big no no. High rpms help break up carbon, so if you baby it too much you're allowing carbon to form. That's just my opinion, maybe a seafoam every now and then. We don't seem to have a carbon valve problem, but this car does have an injector carbon issue.

 

Thanks for that.
I wonder if a fuel system cleaner additive would help prevent the build up of carbon on the tips of the injectors?
I know that many JLR dealerships add a can of BG44K to the fuel tank as part of a routine service, BG44K gets some good reviews, and it seems to the best fuel system cleaner additives out there.
According to their blurb it cleans carbon build up in the combustion chambers, see here: https://www.bgprod.com/catalog/gasol...ystem-cleaner/ so presumably that would include the tips of the injectors.
I have used it occasionally in my XFR and F-Type but I haven't noticed any difference, possibly because those engines were not high mileage and already fairly clean.
Or is it all snake oil?