This problem might be a little tricky. And only pertains to this perticular vehicle with this perticular problem. That said heres the breakdown
These 2 sensor are similar one measures the position and the speed of a cam.
The other one references only the position. Mostly for starting porposes. They work together to indicate weather or not the two cams are in synchronization or not " with the crankshaft they report to the ecu and that data gets combined with other incoming data from other sensors around the engine to adjust the way the engine runs for longevity and economy and environmental benefits
Fortunately Ideally when you get both of them acting up at the same time its a great opertuinity to check the internal timing components for worn out or broken parts like
timing belt /chain
rails guides rollers ect. The list goes on and
Somtimes a tooth can break away from the belt or it can jump a tooth or link if its a chain. Or problems of that sort among others. So now would be the time to check it before its to late and theres catistofic damage.
The reason im meantiining these things is becuase these sensors are vary reliable they last many years giving great service they do stop working at some point but the key is they rarely break at the same time it almost never happens. Thats just another reason to check the internal cam timing components for abnormal wearing issues /slop or out of sync problems it might be having. Now. Somtimes after checking these you get a clean bill of heath and determine that everything's OK. Good news. Then you would just replace both sensors ( them being cheap). But unfortunately here the tricky part
some mechanics would just replace the 2 sensors and if it runs ok ish theyd let it go out the door. Wich can be a big mistake becuase somtimes shortly after that catistrific damage accures . So" for that reason I'd advise against just doing that. If it were me I'd check the timing components first to make sure its safe or not" to go ahead and change or not change out one or both sensors and so for these reasons I believe it would be best for you to just take it to a shop or the delership to have it checked it ( might be overdue anyway) to determine these things first before jumping to conclusions and just throwing parts at it. And currently I dont believe the sensors are at fualt since there are still reporting accuratly. Keep in mind yes it looks simple but might not be in the long run. See tricky!. Sorry if this was a bit long just thought it was important
best of luck to you. I hope this helps for you to make a clear decision on where to go next. Other mechanics thoughts?
Sunday, August 31st, 2025 AT 11:55 AM