Hi All - I was tootling along the motorway the other day, and all of a sudden I got a "restricted performance" message come on screen.. a quick scan showed code P0175 - Bank 2 is too rich - I looked also at the LTFT and STFT for both banks and Bank 1 was reading STFT 0.78% and LTFT 6.25% whereas ban...

Hi all - Been reading some of the more recent posts which relate to a similar problem to my one, - eg - Front suspension stuck raised as high as possible, and "suspension too low" warning - But unfortunately, my story goes into a new chapter - As I was about to take the car down my local garage, the...

Hi Mike The caveat was in "cats have been removed for now " :D I am currently sourcing some more (whether it be sports cats (any links to where you obtained yours) or some from the catman.co.uk) You are correct about removing CATs, as having owned an S55 AMG Merc with Cats removed, but running on LP...

Thanks for the input on this problem - It is now solved - All the air leaks have been fixed, and supercharger bearings changed, along with valley pipe and other bits and bobs - For the misfires, I asked my garage to check the backpressure on the exhausts as I suspected CAT damage due to the previous...

Hi all - As an ongoing saga with my XJR continues, I have had all vacuum leaks fixed on the car, fitted new MAP sensor (the one on the throttle body), had new spark plugs, and swapped over the coil packs from one side to the other, but I have a fault remaining which is a misfire all down the one ban...

I have re-read your post on the porting mods.. it’s a lot more relevant now I have these parts off the car.. just wondering what method you employed to cut the gasket between elbow and SC

I will take a look tomorrow. (Most of the car is half a mile away at a garage). May I check you mean to grind away approx in the area of the red line?

Thanks again Mike. I decided against oven cleaner (I did not have any to hand, and was unsure of any side effects having had a google) , and instead cleaned as best I could with carb cleaner and acetone - as you said, any cleaning would be an improvement. I gave the elbow a reasonable porting - (not...

Hi Mike - I have the throttle body and elbow on the bench currently - I have used carb cleaner and a paint brush to clean up as best I could on the throttle body (and I can see clearly the area of coating) However, there seems to be a slight ridge of deposits where the butterfly comes to rest - Shou...

Thanks Mike - Contacted Lawson, who said not to worry too much about the coating on the blades - My supercharger seems to have ingested something in the past which is long gone - Based on the images, he thinks the centre bearing is ok - Swapping the other bearings though seeing as it is off the vehi...

Thank you! I’ll drop a message out to Lawson tomorrow.

Excellent reply. Thank you Mike

Thanks Mike. As you can see in above photos, the lower throttle body elbow is caked in black. It is the same for the actual throttle body (and the back side of the butterfly. ) I need to clean it, but I’m a little paranoid about damaging the coating mentioned so often (is it PTFE?) .. You mention cl...

Scraping on the outside edge of the blade, indicative of needle bearing replacement required?