Shortly after filling the DEF tank i got a check engine light. The DTC was P11CB. I replaced the upstrean NOX sensor. Code stayed gone for 24hrs then came back. Now Im being told that I need to replace the downstream sensor because they are replaced in pairs?
Getting is repaired by mechanic is obviously very expensive
I take help from online websites that have this service like helping in repair... some like reliable-store have instant help 24x7.. others are a bit slow which I don't prefer... rest is up to u.. U can also get free manuals
SOURCE: Where is the location of the knock sensor for a 2005 HD 2500 6.0
HAS TWO KNOCK SENSORS they are both under intake in valley of engine. remove intake and will see two black grommets they are under those best to replace both at same time
SOURCE: Temp sensor needs to be replaced
this does not mean the sensor is defective, it most likely means the engine thermostat is stuck open and the engine is not running hot enough to satisfy the computers preset temp requirements for minimum eng operating temp.
SOURCE: 2004 Chevy Silverado HD 2500
On many engines with distributor less ignition systems and sequential fuel injection, a camshaft position sensor is used to keep the engine's control module informed about the relative position of the crankshaft. By monitoring cam position (which allows the control module to determine when the intake and exhaust valves are opening and closing), the control module can use the cam position sensor's input along with that from the crankshaft position sensor to determine which cylinder in the engine's firing sequence is approaching top dead center. This information is then used by the engine control module to synchronize the pulsing of sequential fuel injectors so they match the firing order of the engine. On some applications, input from the camshaft position sensor is also required for ignition timing.
The camshaft position sensor may be magnetic or Hall effect, and mounted on the timing cover over the camshaft gear, on the end of the cylinder head in an overhead cam application, or in a special housing that replaces the distributor (in the case of some of the GM applications). Operation and diagnosis is essentially the same as that for a crankshaft position sensor.
Re check the wire harness and the sensor installation to the camshaft sensor in Bank #1 which is where the #1 cylinder is. Good luck and hope this adds some light to you question, keep me posted and be glad to help.
SOURCE: error codes
P0523 means the Oil pressure voltage to high. Your Oil pressure sensor may need to be replaced. P1682 means your charging system is to low. Your voltage regulator may be going bad or the whole alternator. p1693 means a Diagnostic trouble code (DTC) has been detected in the ECM or PCM which is related to the above DTC P0XXX codes. Good luck and hope this helps. Keep me posted, be glad to help
SOURCE: 2007 chevy silverado 2500 hd duramax shut down
mo me it sounds like low fuel volume i would check my lift pump
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