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With the parts numbers being different, I would start with the correct knock sensor.Did you use a shielded wire, and ground one end? This is how the rewire for the '86-'92 Supra's is done, using a 50 Ohm 18 to 22AWG multi-strand wire.
I used a normal coax, audio cable. Its probably closer to 12 gauge wire. Doesnt the wire from the ecm run straight from the ecm to the sensor? Is the sensor not grounding it? I'm confused about that.
Get rid of the normal sensor. Splice into the existing wire and install a GM knock sensor on one of the threaded bosses on the block. Also will need to run an inline coil resistor on the wire to the sensor. This is what LCE does with there standalone kits. It worked perfect for me.
I am not an electrical engineer, but I tried your method with my '87 Supra and it failed, only solution was using a shielded wire and grounding one end. The KS system is finicky, it seems breaks in the connection(even when resoldered) or RF disruption of the signal from outside will cause it to throw a code, which causes the ecu to retard the timing to prevent engine damage.Did you run an inline resistor or straight to ground?Since you have already soldered in a new wire I would try the correct KS or Willards suggestion, then try to rewire it using the method used for the Supras.http://oldschool.supracentral.com/htm/knock.htmIs that using the oem wire?
Get rid of the normal sensor. Splice into the existing wire and install a GM knock sensor on one of the threaded bosses on the block. Also will need to run an inline coil resistor on the wire to the sensor. This is what LCE does with there standalone kits. It worked perfect for me.Sent from my iPhone using Tapatalk
I am not an electrical engineer, but I tried your method with my '87 Supra and it failed, only solution was using a shielded wire and grounding one end. The KS system is finicky, it seems breaks in the connection(even when resoldered) or RF disruption of the signal from outside will cause it to throw a code, which causes the ecu to retard the timing to prevent engine damage.Since you have already soldered in a new wire I would try the correct KS or Willards suggestion, then try to rewire it using the method used for the Supras.http://oldschool.supracentral.com/htm/knock.htmIs that using the oem wire?
The sensor provides the ground for the ecm. And it will be a gen 3 vortec so, '00-'06. You will need a knock sensor and the harness. I used a 45ohm resistor I believe. Just look up a coil resistor for like and Oldsmobile or and older dodge that used it for the ignition system. It was really easy as long as someone at the parts counter knows what there looking for.Sent from my iPhone using Tapatalk
Again, where is this one end being grounded. ECM to sensor, where is the wire grounded? Like splice to a ground?
Regarding the ground, I know the sensor grounds to the block, which is why I am confused on grounding the wire a second time? Maybe I'm misunderstanding the other gentleman.
Real quick, do you happen to know why the existing toyota KS wont work with your setup? If I added a resistor to the system now wouldnt that provide similar if not the same results? Just wondering.
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