Oxygen Sensor Ground Strap
If you own a 1980 thru 1985 Series 3 Jaguar XJ-6,
with a Single Wire Oxygen Sensor mounted
at the 'Y' connection of the exhaust manifolds,
AND, you are experiencing a certain rough idling,
the following mod might help the problem.
As the engine ages, oil and rusted contact points at the
manifolds-to-cylinder-head, reduce the grounding
of the Oxygen Sensor, so the ECU (Engine Control Unit), receives a less than 'full' ground signal
from the Oxygen Sensor.
This concept is not my idea, it was shown to me
by a factory-trained Jaguar mechanic in the mid 1990s.
He explained that I could get a more stable idling
by adding a grounding wire between the
Oxygen Sensor and a clean body/chassis ground.
I tried it and it improved the idling.
But I decided that a wire wasn't good enough,
I wanted a proper Ground Strap,
so I designed my own Braided Copper Strap
which is fitted to my XJ-6.
The result is that my idling is 99% steady.
this custom strap has proven itself in my car,
so I offer it to you.
I cannot guarantee it will cure any issues
with your engine, a lot depends on many other factors.
The pictures below show the Braided Copper Strap.
It is fitted to the Oxygen Sensor with a custom
Ring Terminal and new crush-washer.
Price for the Ground Strap is $29.00
Delivery in continental USA is included in price.
Overseas please inquire