Ok, so next P0202 (within 1000km of driving since last one) issue shows I need a new fuel injector according to auto electrician.
Funny thing is had this P0202 last repair and that involved new plugs and intake tube only!!!
This time he's saying the entire supercharger needs to be removed to do the job.
I'm not too sure this is correct...I think the charge air cooler needs to be removed only. I have an XK8 manual that shows what to do, it says supercharger method is 'similar' to XK8 process. pages 796 -799 of XK8 Workshop Manual - Third Edition release 2003. I mean mine is a 2004 surely it can't be that different?
Anyway, he's quite adamant the supercharger has to come off and she's a 5.5 hour repair job to replace 1 x fuel injector. 1000 bucks he's telling me. Would hate to have to do all the others one by one based on this quote!...LOL

Also, I would love some info on possible non oem replacements for this part if anyone can steer me towards any. I found some part numbers but not sure if they are correct being Ford 2W93-AA or Denso 195500-4280.

Your thoughts and advice are as always very very welcome!

 

You are correct in that you only need to take off the charge coolers to get to the injectors, but unfortunately to do that you need take off the supercharger as well.

Next to new ones, you could also have the injectors professionally cleaned with a flow check before and after.

Edit: you could try https://www.injectorrx.com/ for example

 

Oh I see, thanks for that, I obviously misread the manual.

 

dont think a clean will rectify a P0202 code as its an electrical fault. You may be lucky and plug reseat/connector clean may fix it?

 

Is it very hard to remove the supercharger as I've been trying to find some actual videos online but can't find anything. I would try myself but I find following those little black and white drawings difficult to follow in the workshop manual.

 

auto electrician was sure it needs replacing, but yeah it's still fitted to car so if he's a smart cookie one would hope he may try all avenues once she's opened up. Thanks for your input

 

The P0202 covers cabling/connectors as well as the injector, so basically its the whole circuit and anything within it that could be at fault. so just pulling the connector off will generate the same code just the same as an open circuit injector

 

I find it quite bizarre that both previous faults had the exact same code thrown and appear to be totally different in nature. I mean last time it was plugs and an intake tube. I was surprised that apparently 'original' plugs and the issue of holes in the intake tube could cause a P0202 as it didn't seem an injector related fix whatsoever.

 

P0202:
'When the injector is switched off, the PCM expects to see a voltage that is close to battery voltage or "high". If it doesn't see the expected voltage the PCM will set this code. The PCM also monitors resistance in the circuit. If the resistance is excessively low or high it will set this code.

nothing to do with spark plugs i'm afraid

 

In saying that then my previous P0202 repaired with new plugs and intake tube seems strange or not?

 

Perhaps they disturbed the injector wiring whilst replacing the plugs? correcting the original fault without even knowing. Which is why i said it may be a wiring fault rather than an actual injector fault

 

Just for the record I was not referring to having the possibly bad injector cleaned, but the others.

I agree with phanc60844 about possible cause, but its very easy (without removing stuff) to check cabling, and that should have been done already if you have a good shop.