Possible Knock Sensor Error Code?

Toran

Well-known member
Feb 3, 2017
349
31
Ohio
Hello Good People,
A little over a month ago while removing the starter I bumped and broke the knock sensor. I have since replaced the starter (new) and the knock sensor(used) and soon after I am now getting a P1316 code. Before I bumped the sensor and before replacing the starter I had no error code or CEL. Right now the truck is running rough with only the P1316 code. Would this be related to the knock sensor?

Two years ago I did:
Reconditioned cylinder heads
Head Gaskets
New STI Plug Wires
Champion Spark Plugs
New Fuel Filter

Thanks
 

Toran

Well-known member
Feb 3, 2017
349
31
Ohio
Thanks for the response. I will do that check later today.
Would this possibly be a moment for dielectric grease?
 

discostew

Well-known member
Sep 14, 2010
6,417
497
Northern Illinois
When you put that used sensor on the side of the block did you torque it? Or did you slam it on with a 3/8 impact? Those things are fragile. Also the wire that goes to those sensors is a coax cable.
 

Toran

Well-known member
Feb 3, 2017
349
31
Ohio
I used my naturally skinny arms and fingers to get it started and tightened it with an adjustable hand wrench.
 

discostew

Well-known member
Sep 14, 2010
6,417
497
Northern Illinois
If you have a scan tool that shows the knock signal it's pretty easy to test the sensors. You watch that PID and hit a bracket on that side with a hammer. If its working it will switch. Mine will say no then when it sees the knock of the hammer it switches to yes.
 
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Toran

Well-known member
Feb 3, 2017
349
31
Ohio
Thank for the response.
Currently I only have Bluetooth dongle scantool, and the UltraGauge.
 

Toran

Well-known member
Feb 3, 2017
349
31
Ohio
Could my faulty ignition switch be responsible for the P1316 code?
A couple of weeks ago I had a starting related issue that I thought was from the starter. It turned out to be the ignition switch. As a temp setup I connected a momentary switch to the starter and the battery and the truck fires right up with the key in the 2nd position.

Thanks
 

Toran

Well-known member
Feb 3, 2017
349
31
Ohio
Wow, now I have amazingly created a cross thread and cannot get the knock sensor properly seated.
Can this be bypassed or what?

Picked up a screw from Homedept, will take a dremal or hacksaw and cut a slit into the screw, and than fit the screw into the truck with the hope of re-threading so the knock sensor can be properly seated.

Thanks
 
Last edited:

Toran

Well-known member
Feb 3, 2017
349
31
Ohio
Hello Everyone,

I got the knock sensor seated in the truck but it is still running rough as in 30% to 40% power decline.

All the plug wires are all seated properly.
No vacuum leak.

What are your thoughts?
Could a bad ignition coil be responsible for power decline and the engine not starting before I connected the momentary switch to the starter?

Thanks