V8 Defender - Diagnostic reading 02 Bank1 Sensor1 - 02 Transitions reading high

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Hu-man

New Member
Posts
3
Location
Essex
Hi
I have a 50th anniversary V8 Defender 90 and up until recently she purred as smooth as Pussy Galore. I must have upset her because she has lost her rhythmic purr and instead feels as if she may not be firing on all cylinders. She idles a little rough, especially from cold. If I run her for a while and turn off the engine, it generally now takes 2-3 turns to get her to fire. When she does fire its not instantaneous.....more like a slow delayed fire. Kind of like when you try to start a car that hasn't been started for a long time when it finally comes to life slowing picking up revs.......like that.

Anyway, I have a cheap diagnostics tool and checked for codes, but none were shown. However, I did notice the following:

02 Bank1 Sensor1 - 02 Transitions(s)
MOD: $E8
MEAS: 1.96
MIN: 0.00
MAX: 0.60

The measurement is way higher than the max.
I did a bit of reading and I believe this may be an 02 sensor for cylinders 1.4?

Any takers.
 
From experience you'll know for certain if a cylinder isn't firing. Try the defender section for a full answer
 
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