I broke my knock sensor on my 5.0, now what?
#19
Some good info for aftermarket equivalents: E3AZ12A699A,OE E3AZ12A699A; Knock (Detonation) Sensor
They can be very tough to find. The truck will run fine without it, just be sure to run at least 87 octane fuel and check the base timing.
#20
knock sensor
I understand it's a analog signal to the ecu, i assume (and i know what that means and i hate to do it) it's a variable resistance output to ecu if i could find out the range of sensor i could replace with fixed resistor to fake out ecu and not throw a code. In Delaware if there is a code no inspection sticker AND I BROKE MINE AS WELL. 1991 F150 4.9 6 cyl sensor # E9TF-12A699-AA really need help could someone take a reading off theirs mine is in several parts. or sell me a knock sensor they want to get rid of. thanks in advance.
#21
I understand it's a analog signal to the ecu, i assume (and i know what that means and i hate to do it) it's a variable resistance output to ecu if i could find out the range of sensor i could replace with fixed resistor to fake out ecu and not throw a code. In Delaware if there is a code no inspection sticker AND I BROKE MINE AS WELL. 1991 F150 4.9 6 cyl sensor # E9TF-12A699-AA really need help could someone take a reading off theirs mine is in several parts. or sell me a knock sensor they want to get rid of. thanks in advance.
#23
No need to fool the brain box either.
No voltage = no knock = no ignition timing retard.
And if you do get spark knock, you'll hear it anyway unless your radio is up. Just ease off the throttle a little. The computer would have just pulled timing. End result is the same (less power) so it's all good in the end... except for your cold start issue apparently. I seriously doubt that's the problem though...
#24
thanks dixie460 and rla2005 it helps to know just what a sensors is trying to accomplish and how they interact with the ecu ,just goes to prove again not to assume that's why i ask now. just trying to think outside the box, sometimes it gets me in trouble. building controls guy in another life and just can't resist to screw with things to get out a jam. starting to find my way around ford was a chevy guy for years. thank you much again that's what makes this forum good.
#25
#26
Ain't it nice to work on something relatively simple for once?
#28
#29