XJR over fueling when hot
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Junior Member
Joined: Jan 2026
Posts: 23
Likes: 2
From: New Zealand
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
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?
Senior Member
Joined: Jul 2012
Posts: 231
Likes: 238
From: Peregian Springs Qld 4573
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
Stick to that method and won't become confused.
John Herbert
1996 XJR
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Junior Member
Joined: Jan 2026
Posts: 23
Likes: 2
From: New Zealand
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!!
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!!
Veteran Member
Joined: May 2018
Posts: 2,124
Likes: 755
From: california
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!!
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!!
Veteran Member
Joined: Aug 2021
Posts: 4,581
Likes: 1,292
From: Kansas City
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
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
Last edited by Parker 7; Feb 23, 2026 at 09:27 PM.
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