I have no spark from all six ignition coils. I did get a code for multiple miss firing.

History, I had a #6 coil miss firing code. Changed out the coil, still had code. Found low compression. Rebuild head with new valve springs and reseated all the valves. In this process I broke the timing chain guide. Thinking nothing of the plastic guide being removed. This kick me later. Engine ran like clock work. Six or so months later the timing chain jumped timing and bent all the exhaust valves. Replaced the head and timing chain. Started the engine had me multiple miss fire codes. I put dielectric grease in the coils due to possible bad connection. Now I have no spark at all. On the coil plug I check the ground is good. The hot wire gets 8 dc and the middle wire gets -3vdc. I have no active codes. I due have a pending cam position code p0315. Any suggestion would be great.

 

Does any one know about the yellow ligth showing the auto with a lock?. My trial blazer some time show that alarm and it does not star to run. I have to wait until 15 minutes to start the car.? Does any one know how to solve this problema?. I tried with a couple of scanners but does not show the alarm.

 

the theft deterrent dtc will be set in the theft deterrent module. you will need a full function scan tool that can read body codes.

 

Thank you for your information. I have two scanners Autel US703 and Launch C reader VIII but they are not able to check that alarm.