Thread: Help needed with power loss

Originally Posted by flyboy

Is the access panel obvious?
I’ll get under tomorrow and have a look...

Yes. The half-moon shaped aluminium cover at the front of the bell housing.

cover.JPG
cover2.jpg

Does the '98 P38A have the solid or fabricated reluctor ring? Probably fabricated like mine.

My '95 flywheel - note the repaired fingers that were damaged when they struck the crank position sensor. To the righ of them you can see the "missing tooth" which tells the system the start of the pulse train.

P38A_Flywheel-3.jpg

The pulse train from my engine. Note the missing pulse near the left. Then, to the right, the shorter pulses from the damaged fingers (before repair). (Yes, I own a CRO or three. )

P38A_crank_signal01w.jpg

Later flywheel:

a29b19a28e4bbc5f62142cb6760e7e95-land_rover_range_rover_p38a_smagratis.jpg

GEMS has the fabricated (pressed/folded metal) type.

Thanks for the update Marcus and closing the loop. Glad to see it fixed and I appreciate Ron's (analog!) CRO traces.
How do we now interpret the "0340 camshaft sensor fault" though?

Cheers,
steve

Just crawled underneath in the rain on the gravel driveway with all the wrong size spanners etc...
Took off the inspection plate and everything looks good in there...reluctor ring still firmly riveted and all teeth straight and clearing the sensor probe.
As for the camshaft sensor fault being the only fault, yet the crankshaft sensor being the issue I have no idea!

Sorry guys....I’m back for more help .
It seems my excitement in fixing it may have been premature....
After 24 hours of running perfectly, Now it still stumbles and coughs when cold and won’t go past 2000rpm (worse than before). As it warms up it improves and eventually it will rev all the way out, (better than before) but gives a bit of hesitation and misfire through about 3000rpm.

No faults being flagged on Nanocom.

When the rain stops I’ll pull out the crankshaft sensor and see if it has any marks again on it. If all looks fine, then I’m truly stumped

Ok...I’m on to it...

My reluctor ring is missing an inner tooth!....not the one it’s meant to be missing. There’s an inner tooth that has very cleanly sheared off near one of the bolt holes. The outer tooth is still there.

Next step...I’m guessing the flex plate has to come out...is that something I can do or is it off to the mechanic?

Unless you can find someone very clever with a welder, it's a gearbox out job I'm afraid.