P1646 & P1647 after Drop Transmission
#1
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We had to drop the exhaust and transmission to replace the Rear Main seal on my 99 XK8. All of that went well (very hard main seal had completely blown out).
This also required the disconnection of some of the O2 sensor harness connections located above the Trans gearbox.
We reinstalled all components and everything good except kept getting P1646 & P1647 codes. Cleared and came back right away. After searching this post,
determined 1st action was to do a Hard Reset ECU. JagRepair.com - Jaguar Repair Information Resource Also let sit dead for 30 minuets per other recommendations in this forum.
Reconnected batteries, Cleared CODES and bingo, codes stayed clear. Have cranked several times and seem to have fixed issue. Best as I can tell from the many threads,
has something to do with the values being reset when disconnected??
Anyway its fixed for now. Just wanted to try and be helpful if other experience.
This also required the disconnection of some of the O2 sensor harness connections located above the Trans gearbox.
We reinstalled all components and everything good except kept getting P1646 & P1647 codes. Cleared and came back right away. After searching this post,
determined 1st action was to do a Hard Reset ECU. JagRepair.com - Jaguar Repair Information Resource Also let sit dead for 30 minuets per other recommendations in this forum.
Reconnected batteries, Cleared CODES and bingo, codes stayed clear. Have cranked several times and seem to have fixed issue. Best as I can tell from the many threads,
has something to do with the values being reset when disconnected??
Anyway its fixed for now. Just wanted to try and be helpful if other experience.
The following users liked this post:
DavidYau (06-28-2020)
#2
The following users liked this post:
DavidYau (06-28-2020)
#3
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