Lack of power

The code I received yesterday was to replace the crankshaft position sensor so I did same results. I will try the o2 sensor later and get back to you. Thanks

I disconnected the o2 sensor still no change.

Okay, I will try that this weekend. Thanks

I have finally remover the o2 sensor, but still the same thing except now stalls out.

I still have the same problem

The trouble shooting guid says that sometimes after replacing the crank shaft position sensor sometimes u have to bring it to the dealer to have it reset is this true

I'll give that a try thanks

Must have been a bad crank sensor. I tried another one and it runs great now. Thanks for all the help, this site is great.

I have a 2004 trailblazer that had a blown head gasket. I purchase the Camshaft Holding Tool, I already had the angle meter and I purchased the tension-er holding tool to complete the job. Everything went well during the rebuild and I took my time. All the timing marks lined up, etc. I followed detailed instructions during the whole process and took my time. When I fired it up it did ok but I notice a rough idle but did not notice a loss of power. This rough idle go worse and now I get the P0016 code and some loss of power. I can clear the P0016 it and it comes back. I have a scan tool that gives me some data. Camshaft phase solenoid DC 0%, Cam Phase angle desired 0, Cam Phase angle Actual 0, cam phase angle variance 0, CMP and CKP active counters are showing changing data. I have replaced the actuator on the side of the engine and the exhaust cam sensor. When I pulled the old actuator I notice that the screen had some aluminum dust on the screen from where the head was milled down. I had tried to clean this from the head prior to installation but I guess I missed some. I went ahead and put in the new actuator. I have since pull the new actuator and the dust is gone. I have also changed the oil since. I have pinned out the wires from the actuator the PCM and they are good. I need some help and ideas. The question I have is concerning the operation and setting of the actuator sprocket. When following the instructions I was not sure how the advance the actuator on the exhaust sprocket when bolting it up to the cam. I tried to turn the front of the sprocket clockwise and it would not move. I didn’t want to force because I have read you can damage it. I need to know the details on how to advance the actuator on the sprocket so I can confirm if I’m doing it correctly or maybe mine is bad. I can say it would not rotate forward or backward. Also, the timing marks lined up on both sprockets correctly at TDC. Can the crank be off even with the two at the top dead on? The chain seem to be tensioned evenly.

Thank you for your quick response. Do you have any comments on how to fully advance the actuator on the exhaust sprocket? I cant find any good information and I would really like to see a video on this to know I have done it correctly. I am planning to find a shop with the scan tool to do the resync as suggested.

Just so I understand, once you place it on the cam, then it should rotate clockwise? What actually rotates? Is the the round end that rotates or the whole gear?

A couple of days ago the check engine light came on. The next day, the RPM dial quite working and the speedometer work incorrect. I refueled with good gas and the next day the check engine light went off. However, the next day my wife went to pick up our son from school and when she tried to drive it, she said it acted like the parking brake was on. What could be the problem?

Thanks for your help.