Testing Knock Sensor

iananita · Post by **iananita** » Sat Apr 18, 2009 6:17 pm

Haynes manual says no continuity in EJ22 Knock sensor but mine has 550 000 ohm resistance.

Can someone test their sensor?

I have a knock sensor fault code. Is it a fault in sensor or wiring? Engine running smooth

iananita · Post by **iananita** » Mon May 04, 2009 6:48 pm

Was getting intermittent knock sensor fault code. Here is the reason. Old sensor(at bottom) had cracked casing. New sensor now in no fault codes.

AlpineRaven · Post by **AlpineRaven** » Mon May 04, 2009 9:07 pm

If you're still getting no replies, i'll check mine, i have a spare one in the garage.
Cheers
AP

tex · Post by **tex** » Mon May 04, 2009 9:10 pm

Seems to be a common problem and as someone pointed out to me the positioning for them isn't exactly the best! I went through a subaru wrecking yard and couldn't find one that hadn't cracked from the heat!

vincentvega · Post by **vincentvega** » Mon May 04, 2009 9:27 pm

this is one part you really shoud replace with a new one.

Take the thing out, if there is any signa t all of cracking it needs to go in the bin.

$140 from subaru. will solve your problem

Joel · Post by **Joel** » Tue May 05, 2009 10:21 pm

i have heard of people relocating them
checked mine and ofcoarse.....cracked.....

greywarden · Post by **greywarden** » Fri May 13, 2011 10:59 am

Cool looks like this one is a better reference than this thread. showthread.php?t=19353/knock sensor function
ooopps sorry no offense lol i will just buy a new sensor i guess that is the best move for me to make because i am not really knowledgeable in testing .

Talasas · Post by **Talasas** » Sun May 29, 2011 4:31 pm

For the record the Gregory's manual says that they are supposed to have 560k ohm resistance. But they are notorious for cracking, replacing it was a good idea.