996 Tip Gear Change Issues at High Revs

[Ash996911]

Hi All,

 

I'm a noob to this forum looking for some advice if possible. My car is a 1998 996 911 C2. Last year I had an issue with a cam shaft positioning sensor that meant my car had gear change issues at high revs in either manual or full auto modes. It would get to the point of changing gear in either mode and would struggle to change and if looking at the dash the LED's would jump between the gear selected and manual/auto modes.

 

This was identified that a reluctor ring on the cam shaft itself was bent so not allowing the positioning sensor to identify the cam shaft speed.

 

I had the engine removed and this issue rectified along with the LN IMS bearing upgrade, new oil separator, new oil filter, oil change & new rear main seal on the engine going back in. This was just shy of £2k of parts & labour at the end of last summer.

 

I have hardly driven the car since this (few hundred miles) as I had it moth balled over winter as was considering selling it and wanted to not put any miles on (76k on clock).

 

I've been driving the car recently. It starts perfectly and sounds sweet but I think the above fault has come back. 

 

Just looking to see if anybody else has encountered a similar fault and what would be the best path to take from here? Should I go back to the same service centre asking them to re-check the issue or get a second opinion. I can't afford many more £2k bills on the car!!!

 

Thanks all in advance...

 

Ash