Running on half cylinder when idle cold

[Equalross]

Ok so I got most of my gremlins gone. Now when I start the car cold it will start on 12 then after a minute or so. Right when you can start actually seeing exhaust gas come out it will drop down to half bank . Driver side turning off. No eml light. The light does work and goes on then off on start up like it should. If I get in and rev the engine it will immediately go back to 12. I have scan before and code 16 has been the only code to show. It drives on 12. Literally the only time it drops down is on cold start up. Not a huge deal but it is driving me nuts trying to figure this ghost out. Any suggestions. I have replaced just about everything involved with the ignition system and had the throttle bodies rebuilt by dragon.

Thanks for any advice

[rjjablo]

Test both your Cam Position Sensors and your Crankshaft position sensors with an Ohmmeter. Test from the inside tab to the outside. One way will give you a reading and the other infinity. report back with readings.

Cam Position Sensors AKA Doughnut sensors are likely the problem.

Test # 6 and # 12 Sparkplug wire for continuity. 6K Ohms

[Equalross]

Rjjable. Thank you for the advice. I already replaced the crank sensors

[LappingLuke]

He suggested you test the cam sensors and plug wires 6 and 12. Have you done that?

[shogun]

checked both fuel pumps and fuel pumps pressure?