Tach not working/check engine light
#1
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Tach not working/check engine light
A few months back I had a 6.0 installed in my car and the tach worked fine and the check engine light was not on.
After the motor was installed the tach quit working and the check engine light is on. When I put a scanner on the car is says the signal for cam sensor is low. I put in a new cam sensor and still the same code comes up. I was told to check the wires that run along the passenger headers to make sure they are not touching. Well they were so I fixed them and still nothing... When I replaced the transmission this weekend I found the plug for the knock sensors was not plugged in so I plugged it in and checked the connection on the cam sensor and everything seemed fine.
Does anyone know what it could be? I have to get the car inspected this month so I need to get the check engine light off and it would be nice to get the tack working. I checked the fuses by the door panel, is there another place that has fuses?
After the motor was installed the tach quit working and the check engine light is on. When I put a scanner on the car is says the signal for cam sensor is low. I put in a new cam sensor and still the same code comes up. I was told to check the wires that run along the passenger headers to make sure they are not touching. Well they were so I fixed them and still nothing... When I replaced the transmission this weekend I found the plug for the knock sensors was not plugged in so I plugged it in and checked the connection on the cam sensor and everything seemed fine.
Does anyone know what it could be? I have to get the car inspected this month so I need to get the check engine light off and it would be nice to get the tack working. I checked the fuses by the door panel, is there another place that has fuses?
#4
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Swap the outer two wires on the can sensor harness. This is very common, especially with GEN4 engine swaps into Gen3 cars. The symptoms are hard starting, no/sparatic tach signal, DTC code thrown.
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#6
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I will try the cam sencor, but from what what Matt is saying it exactly what the car is doing.
#7
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I'd bet lunch on the cam sensor
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#9
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Did you get a chance to check this last night?
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#11
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HAHA! Neh. Just curious No lunch required!
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#13
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Is this an Gen4 swap that has the cam sensor in the front cover? If so, you can swap the outer two wires up there at the front cover as well!
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#15
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No, it'd just be in the rear. It will not be an issue where you need to swap those wires if it's still in the rear. More likely, the sensor is bad, or the wiring to and from the sensor to the PCM is cut/frayed/etc.
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#17
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What is the code number?
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#19
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Yea, check to make sure the pins coming out of the PCM are straight, not pushed in farther than others, etc...even a little bend can wreak havoc on the rest of the systems!
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#20
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After checking the connectors for the computer and other various connectors I found this:
so I did this:
and this started working:
but now I need to get this to shut off: