Knock sensor location

nsantos23 · Post by **nsantos23** » Tue Apr 20, 2004 9:29 pm

Where is the knock sensor located? is the one undeer the alternator or the once behind the timming belt cover on the drivers side?

Can anyone let meknow

thanks

Neo

vrg3 · Post by **vrg3** » Tue Apr 20, 2004 9:36 pm

Neither, actually. Below the alternator is the crankshaft angle sensor and the one near the timing belt cover on the driver's side is the camshaft angle sensor.

The knock sensor is mounted to the rear driver's side of the block, under the intake manifold. It's a ring with a bolt going through its center.

nsantos23 · Post by **nsantos23** » Tue Apr 20, 2004 9:53 pm

if a knock sensor goes bad what happens?

THAWA · Post by **THAWA** » Tue Apr 20, 2004 9:58 pm

I dont quite know how the electrical portion works but i assume when it's disconnected/not working it's the same as if your engine is knocking. The ecu will pull timing Do you have the old style or new style sensor. You can check by looking at the plastic connector right below the throttle body area, infront of the pitching stopper. If both sides ar ethe same color it's the old style and needs to be replaced. I think the new style is white and old is gray but I really dont know for sure.

nsantos23 · Post by **nsantos23** » Tue Apr 20, 2004 10:02 pm

I just looked at it, its black! should I change it just for the hell of it, get a new one in there?

n

THAWA · Post by **THAWA** » Tue Apr 20, 2004 10:05 pm

it's supposed to be black

I was talking about the lil quick release connector. Follow the wiring from the sensor and you should see where I'm talking about

Post by **Legacy777** » Wed Apr 21, 2004 2:44 pm

http://www.main.experiencetherave.com:8 ... P_2481.JPG

little black guy just on the left of the coolant crossover....with the white connector

nsantos23 · Post by **nsantos23** » Wed Apr 21, 2004 4:54 pm

Thanks Josh

But its weiiiiiiiiird, I changed the knock sensor and cleared the ECU AND GUESS WHAT.. nothing same errors out. so i decided for the hell of it to disconnect the O2 sensor, hahahah it worked i didnt have a cel ON, it did come on this morning, but no hesitation at all.. i wonder if my ECU is screwed. well i'll keep you guys posted

Neo

Matt Monson · Post by **Matt Monson** » Wed Apr 21, 2004 5:47 pm

If your O2 sensor is bad, it will send the car into limp. If you just run without one it will CEL after 50-75mi, but will not limp. I went through that with my car. I am guessing there is another thread that I haven't read. I will look around and see if I can find it for more details...

Post by **Legacy777** » Wed Apr 21, 2004 11:21 pm

how did you "reset" the ecu?

Sometimes if it won't clear with the battery method, you need to connect both connectors and follow the procedure I have on my site.

THAWA · Post by **THAWA** » Thu Apr 22, 2004 12:33 am

http://bbs.legacycentral.org/viewtopic. ... 7663#57663

legacy92ej22t · Post by **legacy92ej22t** » Thu Apr 22, 2004 2:41 am

The pit off dispair *shiver* the pit...of....dispair.

legacycentral bbs

A forum for 89-94 BC-BF(BJ) Legacy Owners and Fans

Knock sensor location

Knock sensor location