somthing every 98 ls1 owner should do....
brandonppr so the parts in the pictures are these two numbers right? 12589867 and 12601822
so pull the intake, unplug the old harness, remove old sensors, install new sensors, plug in new harness, install new intake.
i guess im asking about the harness because the parts guy on the phone said it looked like the part he had in his hand had to be spliced in to the old harness, or some b.s like that.
so i wanted to make sure that i have the right numbers, the old harness unpluged, the new one plugs in and also on gm parts direct they are special order parts
so pull the intake, unplug the old harness, remove old sensors, install new sensors, plug in new harness, install new intake.
i guess im asking about the harness because the parts guy on the phone said it looked like the part he had in his hand had to be spliced in to the old harness, or some b.s like that.
so i wanted to make sure that i have the right numbers, the old harness unpluged, the new one plugs in and also on gm parts direct they are special order parts
You have the correct numbers and the harness plugs in. Get these parts from SDPC2000.com, they are a sponser here and have them on hand. I got mine in less than a week.
Originally Posted by bad6as
brandonppr so the parts in the pictures are these two numbers right? 12589867 and 12601822
so pull the intake, unplug the old harness, remove old sensors, install new sensors, plug in new harness, install new intake.
i guess im asking about the harness because the parts guy on the phone said it looked like the part he had in his hand had to be spliced in to the old harness, or some b.s like that.
so i wanted to make sure that i have the right numbers, the old harness unpluged, the new one plugs in and also on gm parts direct they are special order parts
so pull the intake, unplug the old harness, remove old sensors, install new sensors, plug in new harness, install new intake.
i guess im asking about the harness because the parts guy on the phone said it looked like the part he had in his hand had to be spliced in to the old harness, or some b.s like that.
so i wanted to make sure that i have the right numbers, the old harness unpluged, the new one plugs in and also on gm parts direct they are special order parts
Originally Posted by bad6as
brandonppr so the parts in the pictures are these two numbers right? 12589867 and 12601822
so pull the intake, unplug the old harness, remove old sensors, install new sensors, plug in new harness, install new intake.
i guess im asking about the harness because the parts guy on the phone said it looked like the part he had in his hand had to be spliced in to the old harness, or some b.s like that.
so i wanted to make sure that i have the right numbers, the old harness unpluged, the new one plugs in and also on gm parts direct they are special order parts
so pull the intake, unplug the old harness, remove old sensors, install new sensors, plug in new harness, install new intake.
i guess im asking about the harness because the parts guy on the phone said it looked like the part he had in his hand had to be spliced in to the old harness, or some b.s like that.
so i wanted to make sure that i have the right numbers, the old harness unpluged, the new one plugs in and also on gm parts direct they are special order parts
http://www.thecheekofit.com/lamborgh...sor_wiring.JPG
that is the new harness and the part number for that is 12601822 correct?
that is the new harness and the part number for that is 12601822 correct?
I just did an intake install and changed the KS. my build date is 3/98 and I had the new version knock sendors. the p/n on them was 10456603. I guess it is hit or miss if you have the old version KS then. I can get pics of the used KS's but someone will have to load them on the page for me.
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I'm getting ready to throw a wrench into all of this...I don't think the sensors in and of themselves are the problem. I've got a '98 Z28 built in 2/98. I had the notorious 3.9 KR at WOT for years and couldn't get rid of it. I did an LS6 swap in the summer of '04 and decided to try new knock sensors to see if that fixed the problem. When I pulled the sensors out of the motor, I already had what ya'll are calling the "new" type which are also known as the "bottle nipple "top knock sensors. I just replaced them with the same type (bottle nipple top) and my KR problem disappeared. I've monitored all of this through AutoTap.
GM actually did a service bulletin on this. The problem was that water was getting under the intake (especially for those of us who wash our engines on occasion) and causing the knock sensors to go bad by seeping into the hole the knock sensors go in. GM's solution was to replace the knock sensors and then build up a "dam" with silicone around the knock sensor harness to keep water out of the hole that houses the knock sensors.
So, IMO, the bottom line is check first to see if you have 3.9 KR at WOT and if you do, replace the sensors and try to build up a dam with silicone around the harness (Try a search, I'm sure the diagram has been posted on here before). The "new" type of sensors mentioned in this thread can also have the 3.9 KR at WOT. However, if you replaced the sensors and if you've swapped over to the LS6 intake, I'm not sure if you will still have this problem or not since the LS6 intake's "floor" is a whole lot lower than the LS1 intake.
GM actually did a service bulletin on this. The problem was that water was getting under the intake (especially for those of us who wash our engines on occasion) and causing the knock sensors to go bad by seeping into the hole the knock sensors go in. GM's solution was to replace the knock sensors and then build up a "dam" with silicone around the knock sensor harness to keep water out of the hole that houses the knock sensors.
So, IMO, the bottom line is check first to see if you have 3.9 KR at WOT and if you do, replace the sensors and try to build up a dam with silicone around the harness (Try a search, I'm sure the diagram has been posted on here before). The "new" type of sensors mentioned in this thread can also have the 3.9 KR at WOT. However, if you replaced the sensors and if you've swapped over to the LS6 intake, I'm not sure if you will still have this problem or not since the LS6 intake's "floor" is a whole lot lower than the LS1 intake.
Originally Posted by BandDirector Blk98ZM6
I'm getting ready to throw a wrench into all of this...I don't think the sensors in and of themselves are the problem. I've got a '98 Z28 built in 2/98. I had the notorious 3.9 KR at WOT for years and couldn't get rid of it. I did an LS6 swap in the summer of '04 and decided to try new knock sensors to see if that fixed the problem. When I pulled the sensors out of the motor, I already had what ya'll are calling the "new" type which are also known as the "bottle nipple "top knock sensors. I just replaced them with the same type (bottle nipple top) and my KR problem disappeared. I've monitored all of this through AutoTap.
GM actually did a service bulletin on this. The problem was that water was getting under the intake (especially for those of us who wash our engines on occasion) and causing the knock sensors to go bad by seeping into the hole the knock sensors go in. GM's solution was to replace the knock sensors and then build up a "dam" with silicone around the knock sensor harness to keep water out of the hole that houses the knock sensors.
So, IMO, the bottom line is check first to see if you have 3.9 KR at WOT and if you do, replace the sensors and try to build up a dam with silicone around the harness (Try a search, I'm sure the diagram has been posted on here before). The "new" type of sensors mentioned in this thread can also have the 3.9 KR at WOT. However, if you replaced the sensors and if you've swapped over to the LS6 intake, I'm not sure if you will still have this problem or not since the LS6 intake's "floor" is a whole lot lower than the LS1 intake.
GM actually did a service bulletin on this. The problem was that water was getting under the intake (especially for those of us who wash our engines on occasion) and causing the knock sensors to go bad by seeping into the hole the knock sensors go in. GM's solution was to replace the knock sensors and then build up a "dam" with silicone around the knock sensor harness to keep water out of the hole that houses the knock sensors.
So, IMO, the bottom line is check first to see if you have 3.9 KR at WOT and if you do, replace the sensors and try to build up a dam with silicone around the harness (Try a search, I'm sure the diagram has been posted on here before). The "new" type of sensors mentioned in this thread can also have the 3.9 KR at WOT. However, if you replaced the sensors and if you've swapped over to the LS6 intake, I'm not sure if you will still have this problem or not since the LS6 intake's "floor" is a whole lot lower than the LS1 intake.
well i did my ls6 intake swap to day my car has a 04/98 build date and i did have the newer sensors ending in 603 but the rear was very coridid. i put some slcione around the black boot that seals off the sensors. car does seam to have more power
Is it pretty safe to say all the cars built in 97? have the old style, or is it totally hit or miss. My build date is 9/97, i have an ls6 intake manifold, and just ordered the coolant line, and 2 plugs for the conversion. I guess i should order new sensors now.
Staging Lane
Joined: Aug 2005
Posts: 94
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I just got done doing this swap today. Don't know if I needed to though...turns out my knock sensors were part #10456603 - which used to be the "new" style, but however has been replaced by the even newer #12589867. So i had the old-new sensors, but not the new-new sensors! Not sure what the difference is there? My car said 6/98 on the door sticker.
I always got KR even when the car was stock, save for an air lid, hope this fixes that, have not logged data again yet.
Here's the fun part: I BROKE THE DAMN OIL PRESSURE SENSOR OFF!!
Yep, I had read on these forums of people doing that when doing an intake swap, and I always thought "how in the hell could you be a big enough idiot to do that"? Well HERE HE IS, the mater idiot !! Hey no problem allow me to be biggest dumb ***!
Maybe this will help somebody else avoid my mistake: when you put your intake back on BE SURE to reach behind there and snake the brake booster vacuum hose BEHIND the oil pressure sensor!!! IF YOU FEEL SOME RESISTANCE sliding the intake towards the back STOP! You get that hose pinched in between the back of the intake and the oil sensor, it WILL easily break right off!!
This whole job went so smooth, I thought, until I got all back together, then went for a drive and I saw no oil pressure and "check gauges" lit, right away I knew what I done and it all had to come back apart. I KNEW this job went too smoothly. Worst thing, this was on Friday when I started, and nobody in town had the sensor in stock, had to order it and wait 'til today to get it. Whatta PITA.
I always got KR even when the car was stock, save for an air lid, hope this fixes that, have not logged data again yet.
Here's the fun part: I BROKE THE DAMN OIL PRESSURE SENSOR OFF!!
Yep, I had read on these forums of people doing that when doing an intake swap, and I always thought "how in the hell could you be a big enough idiot to do that"? Well HERE HE IS, the mater idiot !! Hey no problem allow me to be biggest dumb ***!
Maybe this will help somebody else avoid my mistake: when you put your intake back on BE SURE to reach behind there and snake the brake booster vacuum hose BEHIND the oil pressure sensor!!! IF YOU FEEL SOME RESISTANCE sliding the intake towards the back STOP! You get that hose pinched in between the back of the intake and the oil sensor, it WILL easily break right off!!
This whole job went so smooth, I thought, until I got all back together, then went for a drive and I saw no oil pressure and "check gauges" lit, right away I knew what I done and it all had to come back apart. I KNEW this job went too smoothly. Worst thing, this was on Friday when I started, and nobody in town had the sensor in stock, had to order it and wait 'til today to get it. Whatta PITA.
So, i hooked up my 98 trans am to a so called professional scanner today. It tells timing at cylinder 1. At idle it says im 22-23 degrees. As i drive it goes up, but never really drops bellow 22. Does it seem like my knock sensor's are working fine, and not taking the 4* out? Thanks for any input. Chris
