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I started the swap a while back and finished it 2 months but still have a little tweaking to do. Need help on a/c lines already fabbed up a bracket for under 30$ need tach. To work oil pressure not reading and water temp. Found a temporary fix for temp. And rpms. I'm using a Bluetooth obd2 adapter from eBay with a phone app called "tourqe"
*built 4l60e vette servo, tbss stall, and custom shift kit
Looks good.. do you have any pics of the whole truck?
There is a couple of pics when I first got my truck and now not too much done
Google "obs Ls swap temp gauge" and click videos. There's a video of a 98 camaro 3 wire temp sender one wire to the gauge, other two to the pcm.
As for the oil gauge, you should have left your original sender and used an adapter.
The tach is the white wire running from the conectrr driver side below brake booster, you may need a resistor for it. Check out lt1swap.com he shows how to wire it under 99+ lsx tach wiring.
For the oil, you can remove the 2 bolt cover port next to the oil filter and tap it. There is a dummy hole on this cover, just drill and tap through that.
Here's a neat trick for the temp guage sender. If I had found this info sooner, I would have went this route instead of doing what I did.
http://www.impalassforum.com/vBullet....php?p=2667060
This is definitely the way to go. I did this on my lathe for my temp sender and it came out great. Way better then drilling into the water pump. Your conversion looks great by the way.Quote:
Originally Posted by Mickeymotormount
Here's what I did. Mabey not the cheapest rout unless you don't have a way to tap holes or a lathe http://m.youtube.com/watch?v=1Ew1YSm8jd0
Good lookin, clean install.
Thanks everyone but this is the route I decided to go with for the water temp I just need to go to gm and order the lt1 firbird temp sensor with the 3 wire setup and should fit fine
http://m.youtube.com/watch?v=1Ew1YSm8jd0
now for the oil I actually want to usethe adapter to my original sender from S/P but they have a lot of diffrent sizes and I don't want to order the wrong one
The build is a budget build just thought id mention that due to money being tied up for school
Before you commit to the 3 wire you might want to read this, it was in the stickies.
http://www.ls1truck.com/forums/showt...219#post432219
Well guess I will be doing the one mickeymotormount posted didnt see that sticky about not reading properly
If you have access to a lathe it's very straightforward. Here is a post from another forum from when I rethreaded one on a lathe.
Quote:
Originally Posted by jeebalow
Nice work. I wish I had the machinery to handle such tasks.
Hey thanks! The machinery isn't quite mine, but I have a key to the shop. We have about ten manual lathes, ten mills, 4 (soon to be 5) CNC 3 axis vertical mills and 2 CNC Lathes. I only have about a little over a year left there though. I'm going to miss it.Quote:
Originally Posted by Mickeymotormount
I put that 3 wire sensor in my 1992 chevy pickup and the gauge reads perfect.Quote:
Originally Posted by Bear
I don't think the gauge is what I would be worried about. It's the PCM thinking your engine is colder than it actually is and not adjusting the air/fuel/spark correctly. Maybe check the to see what the PCM is reading? If that seems fine, then you should be good. The reason it may not work is the PCM uses a 5V reference, and some gauges use a 12V reference. So the 12v signal will interfere with the 5V signal. I would also be worried that even if they're both 5V that one signal would throw the other one off because the gauge signal literally goes through the brass into the head to ground.Quote:
Originally Posted by gagliano7