I am taking donbrew's advice and making a new thread about the error code P0340 P0601

Lately I have had a problem with my 2006 HHR in the morning when it is cool I can get to work no problem only about 10 miles. In the afternoon when it is hot I get a short ways and get the dreaded reduced engine power and engine shut down, I can get out open the hood and wiggle the wiring harness and it will start up again go for awhile and do it all over again. The trouble code I am getting is P0340 and P0601. I am not sure if I need to replace the camshaft position sensor or if it may be more likely something in the wiring harness. I would appreciate any advice I can get from the members here, I have read some posts and see there are many knowledgeable people here.
I should add that the car has 85254 miles on it and recently had a front end low speed collision the cooling fan broke, I have replaced it but am still having the shutdown issue.
Thanks

 

I am betting that the replacement of the fan has a lot to do with wire/connectors getting pushed around.

 

It was doing it before I replaced the fan although when the old one self destructed it could have damaged something. I can not seem to find any loose connections yet and have checked where the wiring harness rubs against the bracket, can not find any wear through the wires. I will just keep looking and pulling my hair out LOL

 

The spot on the back of the connectors where the wires go in always looks to me like a break waiting to happen.

 

P0340 is a fault with the intake camshaft position sensor. It could be the sensor itself has failed or it could be a problem in the wiring and/or connections associated with the sensor.

To solve that fault you need the Factory Service Manual for it's diagnostic instructions and wiring diagrams.

P0601 is a somewhat obscure fault with the truck's ECM. It sets when the checksum doesn't match. The repair is either replacement of the ECM or reprogramming of the ECM. Consult the Factory Service Manual for further details.

 

I understood from an earlier post, Camshaft Error thrown, but HHR has no camshaft.. (Multi-page thread 1 2 )

Ceashure


That the 2006 does not have a camshaft position sensor so it must be with the ECM I have not found any likely wiring issues, worn, frayed, broken ect. wires or such.
Since it happens when the ambient temp is above say 88 degrees could it be possible a circuit opens up from heat?
Thanks for the help guys

 

Yes, it does. In fact, if you look under the valve cover you should find a couple of those.

 

There is confusion in the air again! Sensor Not Equal Solenoid. The 2006 2.2L does not have VVT, therefore no Solenoids. It DOES have a Camshaft Position Sensor! At least my 2008 had one, I'll have to look again in the manual for sure.

 

Be it VVT or not, any engine with SEFI has a camshaft position sensor. It's how the ECM knows when #1 cylinder is at TDC.

 

A 2006 does, indeed, have a CMP sensor. The Factory Service Manual will explain how to diagnose a problem with it and will explain how to find it and change it, if necessary.

The P0601 is likely causing the reduced engine power.