4thgen Gauge cluster and Fuel gauge, w/ thirdgen tank
09-03-2014, 11:11 AM
#1
Senior Member
Thread Starter
iTrader: (1)
Join Date: Mar 2012
Location: Georgia
Posts: 574
Likes: 0
Received 6 Likes
on
4 Posts
Car: 91' Z28. 70' Dune Buggy
Engine: LSX Cam/Full Bolt ons
Transmission: T56
Axle/Gears: 4.10
4thgen Gauge cluster and Fuel gauge, w/ thirdgen tank
I have a 91 z28 with a ls1. I have a full 4thgen interior and complete 4th gen wiring harness. I need to hook up the fuel gauge to my thirdgen tank.
How can I do this? I read somewhere that I needed resistors? If so, what type and how many?
How can I do this? I read somewhere that I needed resistors? If so, what type and how many?
09-03-2014, 07:31 PM
#2
Supreme Member
Join Date: Mar 2000
Location: St. Louis, MO
Posts: 2,028
Likes: 0
Received 0 Likes
on
0 Posts
Car: 85' Firebird (Project), 92' RS
Engine: 2.8L, LS1
Transmission: 700R4, 4L60E
Axle/Gears: 3.42 Open , 10 Bolt (ukn)
Re: 4thgen Gauge cluster and Fuel gauge, w/ thirdgen tank
Hmmm, is this because of the 4th gen wiring and LS1 computer?
I have a 4th gen (3.8L firebird) interior and instrument cluster being powered by a 3rd gen harness and computer but my fuel gauge works fine, reading full when full and empty when empty and relatively accurate (as accurate as the 3rd gen unit was) in between.
I have a 4th gen (3.8L firebird) interior and instrument cluster being powered by a 3rd gen harness and computer but my fuel gauge works fine, reading full when full and empty when empty and relatively accurate (as accurate as the 3rd gen unit was) in between.
09-04-2014, 07:53 AM
#3
Supreme Member
iTrader: (6)
Join Date: Aug 2011
Location: San Diego, California For Now
Posts: 2,379
Likes: 0
Received 10 Likes
on
10 Posts
Car: 88 Formula, 90 Iroc RIP, 92 RS Sold
Engine: 305 to 350
Transmission: 700r4
Axle/Gears: 10 Bolt
Re: 4thgen Gauge cluster and Fuel gauge, w/ thirdgen tank
search for the p/n for IIRC a Pontiac level sender thingy lol i forget the exact part name
but just swap it out and should read correctly , but modding the resistor is another option do a quick search should find what you seek
to 85f... it will read but its not entirely accurate to say the least due to the voltage difference the cluster reads out hence why you need resister or change the level sender out
but just swap it out and should read correctly , but modding the resistor is another option do a quick search should find what you seek
to 85f... it will read but its not entirely accurate to say the least due to the voltage difference the cluster reads out hence why you need resister or change the level sender out
Last edited by Zach/90\irocZ; 09-04-2014 at 07:56 AM.
09-04-2014, 04:43 PM
#4
Supreme Member
Join Date: Mar 2004
Location: In the Garage
Posts: 2,519
Likes: 0
Received 4 Likes
on
3 Posts
Car: Camaro
Engine: 6.2L
Transmission: T56
Re: 4thgen Gauge cluster and Fuel gauge, w/ thirdgen tank
If I understand this correct you want to use your third gen tank and sending unit and the 4th gen dash/gauges? If so you need the stock 4th gen one of these, and that should be it.
09-04-2014, 11:53 PM
#5
Supreme Member
iTrader: (6)
Join Date: Aug 2011
Location: San Diego, California For Now
Posts: 2,379
Likes: 0
Received 10 Likes
on
10 Posts
Car: 88 Formula, 90 Iroc RIP, 92 RS Sold
Engine: 305 to 350
Transmission: 700r4
Axle/Gears: 10 Bolt
Re: 4thgen Gauge cluster and Fuel gauge, w/ thirdgen tank
Yea thats the exact it , i believe correct name is fuel level sender but unsure lol
09-05-2014, 09:17 AM
#6
Senior Member
Thread Starter
iTrader: (1)
Join Date: Mar 2012
Location: Georgia
Posts: 574
Likes: 0
Received 6 Likes
on
4 Posts
Car: 91' Z28. 70' Dune Buggy
Engine: LSX Cam/Full Bolt ons
Transmission: T56
Axle/Gears: 4.10
Re: 4thgen Gauge cluster and Fuel gauge, w/ thirdgen tank
Wish I would have known that when I had the tank out lol. No way that tank is coming out anytime soon. Biggest pain I have ever performed on that car.
So it looks like I have to add in resistors. I searched the resistor thing and didn't come up with anything. Ill keep looking.
So it looks like I have to add in resistors. I searched the resistor thing and didn't come up with anything. Ill keep looking.
09-05-2014, 09:37 AM
#7
Supreme Member
Join Date: Mar 2004
Location: In the Garage
Posts: 2,519
Likes: 0
Received 4 Likes
on
3 Posts
Car: Camaro
Engine: 6.2L
Transmission: T56
Re: 4thgen Gauge cluster and Fuel gauge, w/ thirdgen tank
^ Aint that the truth. Tank drops on third gens are no fun at all. To my knowledge no one figured out an external way to solve this to save you time searching. Dropping the tank again is your best bet unfortunately
Trending Topics
09-05-2014, 10:59 AM
#8
Supreme Member
iTrader: (6)
Join Date: Aug 2011
Location: San Diego, California For Now
Posts: 2,379
Likes: 0
Received 10 Likes
on
10 Posts
Car: 88 Formula, 90 Iroc RIP, 92 RS Sold
Engine: 305 to 350
Transmission: 700r4
Axle/Gears: 10 Bolt
Re: 4thgen Gauge cluster and Fuel gauge, w/ thirdgen tank
Yea only way is to drop tank like said above the resistor is built into the fuel sender , good time to make a cool little fuel pump door
Thread
Thread Starter
Forum
Replies
Last Post