ca tech needed

[MikeDombeck]

ok, so i followed seans advice and followed the wire from the knock sensor to pin 23, but sure enough, it is hooked up... here is what confuses me

1. i was told it is 1 wire from the sensor to the ecu, but mine goes to a plug/connector that has 2 wires on it, yet it is only one in the ecu and 1 in the sensor.. CONFUSED.. its like the wires are wrapped in tape and i dont know where the 2nd one came from

2. i was told that the ecu wont flash for a broken sensor, but only if the sensor isnt there

3. the wires werent soldered where the guy who did my wiring connected them, so i just did it, and it still flashes Knock sensor.....

any chance anyone can help me with this project.......

[teddy]

you use shielded wire?

[MikeDombeck]

i dont know, i used the wire that is there.... also, my car is in a world of **** now.... the ecu stopped flashing 34 and now flashes 43, i think that is tps, so i dont know what im doing anymore......

[iliketocrash]

i'm pretty sure the second wire (brown, right?) goes to a 12v ignition source. and i mean 12v as long as the car is on.

[damesta]

The knock sensor only has 1 white shielded wire that runs directly to ecu pin 23, the shielding is grounded to ecu pin 60 with a few other sensor grounds. If you want to make sure it works just hardwire it straight from the knock sensor plug to the ecu, don't even mess mith tearing the whole harness up. The wire does go through a few plugs and actually splits in one place and then goes back together before it gets to the ecu, it isn't necessary to rewire it like this though, just get a piece of shielded wire and redo it straight from the plug to the ecu, then stick that wire in the harness if you want to, the shielding doesn't have to be grounded for it to work but it will give more accurate readings so you might as well do that too.

As for the tps, download the fsm from here:

http://www.zeroyon.com/index/content/view/24/47/

Then find the section with diagnostics, look up code 43 and follow the troubleshooting instructions. You will definitly be able to fix it or atleast determine if its bad with their instructions.

[MikeDombeck]

great, sounds like another project for saturday....... its strange because its not disconnected anywhere. and it worked fine for a year, its hard to find CA's in a junk yard, i found one today,but the knock sensor was gone

[hazw8st]

Anymore info?

[MikeDombeck]

what do u mean, anymore info?