Some attempt to clean the screen of blockages to fix the problem but it is best to replace the sensor all together. Oftentimes the screens will get get clogged up or the internal parts of the sensor will go bad. On your vehicle the variable valve timing sensor has screens(filters) on the shaft of it which is meant to direct oil flow and help regulate engine timing. The variable valve timing sensor being bad is likely the cause for code P0017 and p0300. The variable valve timing sensor is a little more difficult because the power steering pump will have to be removed to take out the long sensor which extends about three inches inside of the engine. The camshaft position sensor is more towards the front of the engine and is a lot easier to replace. The variable valve timing and the camshaft position sensor are two separate sensors. They told me he did not diagnose it right and he did another diagnostic and said it was nothing wrong with my camshaft but told me a lot of other stuff was wrong with it. I decided to take it to another pepboys location so they could scan it and finish the wk there. When I asked if it would futher damage the car by driving it he said it was ok to drive. It was shaking worser with ongoing worser shakes when miss firing I could not pick up any speed. Left with the same problem he told me to bring it back so he could put it on the scanner on next week Thursday because his scanner is broke. Pepboys replaced the variable valve timing soleniod and put in not engine light may come back on becase a camshaft may be need. NOTE: You can find engine specs and detailed engine upgrade advice for every LS and LS-based Vortec truck engine in one place: The Definitive Guide to LS Engine Specs and LS Engine Upgrades.My care has miss fire issues, car is shaking as well with the check egine light sitting on and some times blinking on/off. This will optimize the fuel and ignition curves for the new camshaft, and turn off the VVT system in the computer.You will also need to tune the computer.The computer will no longer automatically adjust the valve timing.You will be locked-in to the valve timing.Click here to see VVT Delete Kits for 3-bolt cams.Click here to see VVT Delete Kits for 1-bolt cams.The type of VVT Delete Kit you need depends on the camshaft you are using. Some kits will also include additional parts, such as: These cams offer higher valve lift and longer duration for more performance.Ī VVT delete kit removes the VVT components and replaces them with standard parts. How Can I Delete the VVT on my LS Engine?Įliminating the VVT system is required when swapping to a non-VVT camshaft. In 2008-15, the actuator has 52-degree rotation. In 2007-08, the actuator has 62-degree rotation. The one one the right has no actuator, so it is from an engine without VVT. The one on the left has the camshaft phasing actuator, indicating that it is from an engine with VVT. They only have a three-pin connector for the camshaft sensor. They also have a five-pin connector for the VVT and camshaft sensor.Įngines without VVT will not have the actuator. (More on that in a second.) How You Can Tell Whether Your LS has VVTĮngines with VVT will have a camshaft phaser actuator on the timing cover. If you want high performance from a bigger cam, you will need to delete the VVT system. If you want to upgrade your camshaft and keep the VVT system, you will need a Camshaft Phaser Limiter.
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