I have 2006 2.4L HHr I recently changed the camshaft positioning sensor and it helped but vehicle still jumps when changing gears. Only have 2 codes popping up one is for a cylinder 2 misfire and the other one was for the camshaft sensor wich I’ve already replaced! Any help would be appreciated!

 

You need to fix the misfire. No sense doing anything else until that's done.

 

I’ve had the code for the misfire for almost 2 years now, I was told it wasn’t a major issue. Plan on keeping the hhr for about another year or 2 just trying to make it last.

 

Without posting the actual code numbers (ex: P0001, P0002 etc.) we can't really help you guess at the cause.

FYI. 1.Certain CEL codes will put the car in "limp" mode and cause the hard shifting.
2. Camshaft positioning sensor is usually not the part needing replacement.

Post up those codes and how many miles on this car and we'll try and help.

 

193,043 miles

 

Does that sound right to you? Misfires cause the MIL to blink because they are considered catastrophic.

 

For the P0010, P0011 you'll need to replace the actuator solenoids. Easy job.
Here's a link- https://www.chevyhhr.net/forums/how-...13-14-a-28779/

Hmm. Don't see a misfire code.

 

okay cool thanks man, so no idea on the car jumping when changing gears?

 

So I bought and changed the wrong part then? I tried doing some research online and though I was supposed to change the camshaft positioning sensor which is what I did

 

Now I don't see a P0302 misfire code in there. Does that come and go?
Your pre-cat O2 sensor is slow to heat up or the heater is bad.
I would look at the actuator for the intake cam not the sensor. Make sure the wiring and connectors are good.