Hello Everyone, This is my first time here and I’m hoping to get some help on my issue before I go to the mechanic.
I drive a 2001 Jaguar XJR X308 that I’ve had for 5 years now. I was cleaning my engine bay with water ( making sure I don’t hose directly into connecters). I removed my air filter and intake ( I made sure to cover the throttle body).
Once I was finished and put the car back together, I started the car and got Restricted performance and knock sensor code P0332 and P0327. I thought it was a fluke given I never had that issue before. I decided to clear the code and disconnect the battery and connect it again hoping it would go away…Not only did the codes come back but now I have a “Battery not charging” light on the dash as-well. I left the negative cable unplugged for the night and now this morning I tried and all the lights are still there. I started to think maybe when I was cleaning, the water went somewhere it shouldn’t be. Not sure what to do now unfortunately… I’ll take any help I can get. Thanks!

 

Unplug both knock sensors, spray WD40 (Water Displacer) inside connectors and let it air out a few minutes before plugging back in. The alternator might be a different story but, focus on one thing at a time. Hook battery back up and clear the codes prior to starting. See if at least the knock sensor codes went away before proceeding.

 

Thanks for the reply! However, to reach knock sensors, Do I have to remove the supercharger? If so, without a clear cut step by step video on how to do it, I'm not sure I feel confident enough to do it by myself without instructions..

 

No, the connectors are located on a metal bracket just in front of both intercoolers. Where the cooling hoses go into and out of the intercoolers. Both connectors are right next to larger oval connectors. They’re 2 wires in each one that you’re looking for.

 

Alright thanks!

What should I do next once I do that? Just the car again hoping the code went away?

Best,

 

Just to make sure, is this the right connector? Thanks

 

Say goodbye to the alternator

 

No, that’s a fuel injector connector.


Passenger side. Attached to a metal bracket.

Drivers side. The left connector. You might as well check both of them on each side. The oval connector is for the fuel injectors.

 

Thank you for clarifying!

I'll keep you updated once I got it done and let you know the results!

Best,