Hello this is my first post...i have a 1996 x-305 6.0l and the code p0336 keeps flagging along with p1000. I checked alldata and it points to crankshaft speed sensor. I have ohmed it and is within specs 1150 ohms. This is a different setup than my 1994 x-81 6.0l. It has a reluctor ring and the sensor sits on top of the engine at a 90 degree angle to the reluctor ring. How sensitive is the air gap? Does the reluctor ring fit on the crank flange only one way? It is hard to find information in alldata about this. Best Regards Robert

 

The DTC summary for the V12_ND_ECM has listed as possible causes:


Foreign material on RPM Sensor face
RPM Sensor / flywheel disc alignment
Damaged flywheel disc
Excessive crankshaft end float

RPM Sensor failure

I can send the DTC summary in .pdf format
to an email address
The file is small at about 80kb

 

when you compared your ohm reading to the spec list, did you also compare the temp range for that reading? Temperature effects resistance on the windings in the sensor.

 

I will check reading again with temp comp. The transmission has been replaced on this car because the lines have compression sleeves on them for the cooler. When I had it on the lift I could see some bent edges on the reluctor ring. But I didn't think this would effect the sensor readings because basically it is just 12 rotating cutout circles telling the ecm the crankshaft speed. When I took the sensor out it was clean at about 60 F. 1150 ohms. How in the world would you adjust the air gap? thanks Robert

 

please send to rmccabe20@hotmail.com best regards Robert

 

I'm interested in the flywheel/disc alignment especially Ican' find any info on this thanks Robert

 

I don't believe there is an adjustment for the air gap. Did you try to straighten out the reluctor ring teeth?

 

Yes I tried to straighten as best possible. The alldata talks about an air gap of 20-40 thousands.How would it be possible to measure? Could the reluctor ring be installed improperly? The diagnostic tree keeps going round and round.It was no easy task getting the sensor out. On the x-81 itis a piece of cake but it relys on the teeth on the ring gear with a couple missing to calculate crank speed. The x-305 relys only the 12 cutouts to calculate speed i guess? Any thoughts thanks

 

I found some added information. There is a dowell pin that locates the sensor bracket that I was not aware of. I will check this tonight to see if I screwed up when I bolted it back. This evidently sets the air gap that alldata talks about. I will follow through until I solve it and will keep posting. Best Rergards to all for information...Robert