changed plugs now code 43 ***?????

[azkkn]

i changed my spark plugs today, and in doing so i unplugged the left knock sensor and slid the starter past it to get to #6 and #8, so i got all done slid the starter back and bolted it in. then started the car and got an imidate engine light, only then did i remember to plug in the sensor. so i jacked it back up and plugged in the sensor. drove it until it went into closed loop and the light came on and it went into gimp mode. i went back home and pluged it into my laptop and got a code 43. knock sensor failure. i cleared the code and started the car, and presto, it was back on, same code. i am now for it to cool off enough to reach back up there and try disconnecting and reconnecting the sensor. its only a one pin snap on connector, any ideas why if the connector was snapped in it would do this?

[Bond Hawk]

Check the contacts, maybe they were bent when you unplugged it and are no longer forming a circuit.

[wolfdogs]

the #6 and #8 plugs are longer than the others. manuf. defect. the piston is tapping the electrode on upswing.......................



















hee heeee

(dukin and runnin)

[Injuneer]

Could have damaged the sensor or the harness.

Take the single pin connector off the sensor. Using an ohm meter, probe from the single pin on the sensor to an engine ground. Resistance should be 4,500ohm +/-1,000ohms. That verifies the sensor.

With connector still off the sensor, turn key on, do not start. Using a volt meter, probe from the single pin on the harness connector to ground. Should read 5.0V +/-0.5V. That verifies the voltage supply from the PCM.

Key still on, connect the harness connector to the sensor. Penetrate connector or wire, measure to ground, should read 2.5V.

[azkkn]

the #6 and #8 plugs are longer than the others. manuf. defect. the piston is tapping the electrode on upswing.......................




hee heeee

(dukin and runnin)

o really? ill go pull those out right now and check them. good thing i never listen to what little frogs tell me!

[azkkn]

Check the contacts, maybe they were bent when you unplugged it and are no longer forming a circuit.

i unplugged it, and reconnected it a second time, making sure it went on straight. problem solved. a few hours later at a friends house the starter died, had to hit it with a bar to make it start. figures, you touch one thing and then it goes bad.