knock sensor

[Dagostino480]

Im buying one online and i found an oe replacement for $30 but there are also sensors for $110. Is there a big difference on these?

[bad dog]

i know i change mine , a year later it went out again , i bought another off ebay for about $30 , then decided to not even change it .

the resistance of a working knock sensor is 500,000 - 620,000 ohms , i went to radio shack and bought a 560,000 resistor , cut the wires between the sensor and ecm , soldered the resistor across the 2 wires going to the ecm , taped it up , then taped everything up so it looks normal , can't tell the resistor is there . runs great , knock sensors are a pain to change .

i have a 98 240 , automatic , greddy cb , injen cold air , underdrive pully , run 87 oct gas , i guess if someone had a turbo with high boost and gets spark knock the resistor would be a bad idea.

or just buy the $30 sensor , i doubt if there is any big difference .

[zerodameaon]

:picardfp:

And to Dagostino don't do the resistor thing, buy the cheap one if you want to save money, they are still better then faking out your ECU. Remember you get what you paid for and the more expensive one might have a better warranty.

[soryu]

I got one of those 10$ ebay ones no problems so far. (been a year)
also have a spare if u wanna come pick it up.8$
changing it was pretty easy just look for some how to's.

[Dagostino480]

i found one on this website for just over $30 and it comes with a 5 year warranty lol ill let you guys know if i have any problems with it

AutoTrust Platinum N311201 Knock Sensor | Auto Parts Warehouse (http://www.autopartswarehouse.com/sku/Nissan/240SX/AutoTrust_Platinum/Knock_Sensor/1995/Base/4_Cyl_2-dot-4L/WN311201ATP.html?intcmpid=Product+Listings+Best+Se ller)

[Dagostino480]

havent had any issues yet btw