XJR over fueling when hot

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Feb 9, 2026 | 05:31 PM
  #41  
Yes I have the correct ine installed. The replacement is the same part though recycled
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Feb 9, 2026 | 05:43 PM
  #42  
In view of the rarity of these units are you going to share your source -

John Herbert
1996 XJR
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Feb 9, 2026 | 06:05 PM
  #43  
Rjr here in NZ
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Feb 14, 2026 | 12:04 AM
  #44  
Quote: Real quick O2 sensors heaters inside each , only 1 fuse for all 4 total sensors

The O2 sensors are not used until coolant above 165 F

right engine bay fuse box either # 10 ,,12 . 14 , or 16

The sensors are heated by this for them to output correctly , O2 sensor physics

The correct different titania based O2 sensors as not the usual

Which right? Looking at the windshield or from the windshield?
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Feb 15, 2026 | 07:55 PM
  #45  
Your perspective IS ALWAYS determined seated in the driver's seat, irrespective of left- or right-hand steering, looking out across the bonnet.
Stick to that method and won't become confused.

John Herbert
1996 XJR
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Feb 23, 2026 | 03:54 AM
  #46  
Update!

Car is running fine now. Drives great, idles smooth and no more over fueling. Decent fuel economy

Injectors serviced
MAF replaced
Cold air intake
New spark plugs
exhaust manifold leak fixed

Next is rebuilding the steering rack then stripping the car for repaint.

I want to extend my thanks to all the great folks on here. You guys were a great help

Cheers!!
Reply 1
Feb 23, 2026 | 11:57 AM
  #47  
Quote: Update!

Car is running fine now. Drives great, idles smooth and no more over fueling. Decent fuel economy

Injectors serviced
MAF replaced
Cold air intake
New spark plugs
exhaust manifold leak fixed

Next is rebuilding the steering rack then stripping the car for repaint.

I want to extend my thanks to all the great folks on here. You guys were a great help

Cheers!!
excellent. Great job
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Feb 23, 2026 | 12:33 PM
  #48  
Rack info for your ZF 7852 series filed below , file now found

There is a common gap in the chassis rails mounting blocks to the rack assembly that has an aftermarket shim to get rid of the daylight gap you can see from looking from above with a light source below

E - bay part # SPC 1059

These can still be installed with no rack removal










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