http://forums.maxima.org/showpost.ph...3&postcount=42 okie so after i read steve's analysis and i sorta did a test as well. my currenct status is definetly "Knock Sensor bad but still connected". so on my way to ratio shack, i'm driving with 30% throttle or less, my car pulls like normal. but when i open up the throttle more than 30%, i notice a lag (aka retarded ignition timing) and car pulls like sh*t. so the 3rd gear lag (or whatever other gear with 30%+ lag) is now proven.



so according to kevlo, i need a 470 resistor. so i bought that.



so the F121 sensor, which is the nearest connector of from the knock sensor harness is now unplugged. (please confirm me that i unplugged the correct sensor)



this is my hand holding the sensor.

okiee now how do i install the resistor into the F121 sensor? the FAQ was very ambigious about this part. and this is where i need help!

 

Ummm I hate to be the one to tell you, but your supposed to use a 470,000 ohm resistor not a 470 ohm resistor. Just unplug that socket and stick a 470K resistor in it.

 

the resistor pin is so long. how am i suppose to plug it into the F121 sensor? do i cut the pin and stick it into the sensor?

 

lol mai bad...it's early in the morning and i'm not fully awake yet. okie i'm running back to radio shack and pick up "470,000 ohm" resistor.

 

like I said in the other post 470K

You just stick one end of the resistor into one side of hte female harness and the other end of the resistor to the other one.

 

yea i just got back from radio shack with 470K resistor pins

do i stick two 470K resistor pins into the F121 sensor or just one pin?

 

My god. The resistor has 2 pins right? The connector you're holding has 2 slots right? Put those 2 together.

 

okie the F121 is hooked up with 470K resistor. i just got back from a test drive my third gear still in safe ignition mode. it still retards when i engage more than 30% of throttle. why is that?

 

Did you reset the ecu after you put in the resistor?

 

yes i reset it but it still does the same thing. why isn't this mod working?

 

Theres a good chance the resistor pins are not making contact with the socket. try this out, bend the end of the pins with some needle nose pliers to form a J shape on the end the resistor pins. Also use some electrical tape to keep that resistor in the socket. All it takes is for the resistor to come loose when driving and it will trigger another knock sensor code.

If that doesn't work you may have a broken connector. In that case I would get a digital voltmeter and measure to make sure there is voltage on one of the pins. And the other pin should be connected to chassis ground.