sensors on the back of ls1
The knock sensors are under the intake manifold on the Gen3 LS engine. Since your swapping over to LS2 or Gen4 the knock sensors are mounted on the sides of the block. You will also be needing a knock sensor extension harness and it can also be purchased through Texas Speed.
Thread Starter
Staging Lane
Joined: Aug 2016
Posts: 73
Likes: 1
The knock sensors are under the intake manifold on the Gen3 LS engine. Since your swapping over to LS2 or Gen4 the knock sensors are mounted on the sides of the block. You will also be needing a knock sensor extension harness and it can also be purchased through Texas Speed.
They will fit the extra motor mount holes. There is only one on the pass side which is usually the batt ground.
Check depth of the holes. I think they are a little short for the sensor. Just to be sure
Check depth of the holes. I think they are a little short for the sensor. Just to be sure
Thread Starter
Staging Lane
Joined: Aug 2016
Posts: 73
Likes: 1
Thread Starter
Staging Lane
Joined: Aug 2016
Posts: 73
Likes: 1
Attachment 708773
LS2 corvette knock sensor locations. Use these holes but you have to drill and tap them to the correct size and use the LS1 type sensor.
LS2 corvette knock sensor locations. Use these holes but you have to drill and tap them to the correct size and use the LS1 type sensor.
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Staging Lane
Joined: Aug 2016
Posts: 73
Likes: 1
Im pretty sure my dad has a set. I'll have to see if i can find it. There's just something about
not being about to reverse it if you screw up that's always made me nervous about it lol. Thanks for the picture and info.
I drilled and tapped on the boss located behind the engine mount on the drivers side of the block down by the pan. These images are of an LSX block and not to be confused with standard LS blocks.
If that is broken, you can run your own 3/8 tubing to the driver side valve cover that contains a 90 deg hose barb into a grommet.
DORMAN 42056 pcv valve grommet O’Reilly Autoparts
Watts Nylon Hose barb A-295 3/8 in ID x ¼ in MIP – Home Depot
I had this setup, but then I went all out and shaved the valve covers and relocated the coil packs. In doing so, I welded AN bungs onto the valve covers and ran my own vacuum lines. You can also buy a valve cover that has the fitting but that's more $$ than welding in the bung.
https://ls1tech.com/forums/generatio...look-good.html
Good reference image from Zlow28:
Last edited by 5.7stroker; Jan 31, 2020 at 02:59 PM.
Hi guys! what are the sensors on the back of the ls1? I know the oil sending unit, but there is a sensor on the back of the intake and one just below the intake. The motor is from a 2002 camaro ss. Im doing an ls2 swap and im running into alot of trouble with sensor swapping. Sorry about the low quality post, im at work and trying not to get behind. Thanks to whoever reads this!!
Jason
Jason
Cam sensor. Its in the middle of the motor of course. Oil# switch is slightly to the right of it (driver side). Don't forget about the knock sensors also.
Thread Starter
Staging Lane
Joined: Aug 2016
Posts: 73
Likes: 1
Here's a picture of the factory line that runs to driver side valve cover.
If that is broken, you can run your own 3/8 tubing to the driver side valve cover that contains a 90 deg hose barb into a grommet.
DORMAN 42056 pcv valve grommet O’Reilly Autoparts
Watts Nylon Hose barb A-295 3/8 in ID x ¼ in MIP – Home Depot
I had this setup, but then I went all out and shaved the valve covers and relocated the coil packs. In doing so, I welded AN bungs onto the valve covers and ran my own vacuum lines. You can also buy a valve cover that has the fitting but that's more $$ than welding in the bung.
https://ls1tech.com/forums/generatio...look-good.html
Good reference image from Zlow28:
If that is broken, you can run your own 3/8 tubing to the driver side valve cover that contains a 90 deg hose barb into a grommet.
DORMAN 42056 pcv valve grommet O’Reilly Autoparts
Watts Nylon Hose barb A-295 3/8 in ID x ¼ in MIP – Home Depot
I had this setup, but then I went all out and shaved the valve covers and relocated the coil packs. In doing so, I welded AN bungs onto the valve covers and ran my own vacuum lines. You can also buy a valve cover that has the fitting but that's more $$ than welding in the bung.
https://ls1tech.com/forums/generatio...look-good.html
Good reference image from Zlow28:
awesome thanks!!