I'm chasing a hard-starting issue and error codes (P0035, P0014) indicating a timing issue, even tho my mechanic just changed the timing belt. I bought a new camshaft sensor; where is it on my 1.9T engine?

Thx.

 

It's not your sensor but it's mounted on the end of the cam.

You probably have a cam not quite correctly aligned correctly or VVT system not working properly. On most Volvos a good scan tool can monitor and measure how much the cam changes to help you/someone diagnose what the real problem is rather than buying and replacing parts that are not bad. That can get expensive and frustrating. Once again - it's not a bad cam sensor.

 

Did the car have the same issue before the mech changed the timing belt? It's really easy to get it wrong....

 

The VVT solenoid is new. And the mechanic that replaced my timing belt is very experienced and checked his work again. He is stumped as to why I'm getting these problems.

 

No. The codes and hard-starting happened after the change. The mechanic that replaced my timing belt is very experienced and checked his work again. He is stumped as to why I'm getting these problems. I'm tempted to just dump the car at his shop and let him figure it out but I'm hoping it's a fix that I can do since I distrust most mechanics.

 

Sounds like he might be off a tooth or the cam and crank aren't aligned properly. Is he an experience mechanic or is he an experienced volvo mechanic? Like Hoonk said, its not your sensor. And if the car was fine before you dropped it off and now it has issues, the mechanic should fix them for you if it is his fault. Being you are getting timing codes, it would see he may have messed something up. Even the tensioner, you can't just put in place, it needs to be tensioned to spec based on make and model as it is used for various volvos.

Using the factory marks, its difficult to get the cam gears in the correct spot without using a locking tool.

 

Actually it seems he has already tried to fix it and the problem is beyond his ability. You may have to find someone else who HAS the ability to understand how to diagnose what the problem is. Replacing parts on a guess is not the way to fix things.

Does your trusted mechanic have a tool that will allow him to test the VVT system? With the right tools you can actually figure out what's wrong -