Fuel Gauge Inaccuracy?

Rogue Z · 11-05-2009, 11:37 PM

I heard Chevron 91 is better than Shell 91

Jason · 11-06-2009, 12:15 AM

Ooo, I thought you guys were talking about chevron gas. Didn't know they had their own cleaner. I'll get some tomorrow.

ChrisSlicks · 11-06-2009, 05:26 PM

Look at this exploded view of the fuel tank.

172 Fuel Tank :: Fuel & Engine Control :: Genuine Nissan Parts :: 370Z Parts (Z34) 2009+ :: Nissan Parts, NISMO and Nissan Accessories - Courtesyparts.com

The sender has a float on the end of a metal arm. This arm can get bent, and a hard impact from a collision could certainly be enough to do that.

Modshack · 11-06-2009, 06:39 PM

I doubt they can get bent...The floats are very light and would not have enough momentum to bend the arm. What typically happens is the contacts on the reostat get gummed up or corroded especially when the fuel level is low. This isn't a Z sender, but is similar to what is used in most cars these days. As the arm, moves up it causes the contact wiper to make contact with the various pc board contacts. Further up (more fuel), more LEDs lit on the gauge. Techron is proven to clean these contacts. I've had plenty of Audi buddys who have brought their senders back from the dead with a few applications..Techron even covers this on their website..

http://www.chevron.com/products/ourf...tives/tcp.aspx

ChrisSlicks · 11-06-2009, 08:01 PM

Believe me the Nissan ones can get bent, they aren't as sturdy as the one you show. It happened to me with my G35.

11-05-2009, 11:37 PM	#1 (permalink)
Rogue Z Track Member Join Date: May 2009 Location: Los Angeles Posts: 559 Drives: 2009 Silver MT 370Z Rep Power: 19	I heard Chevron 91 is better than Shell 91 __________________

11-06-2009, 06:39 PM	#4 (permalink)
Modshack A True Z Fanatic Join Date: Mar 2009 Location: Greenville NC Posts: 2,883 Drives: 370Z Sport Rep Power: 977	I doubt they can get bent...The floats are very light and would not have enough momentum to bend the arm. What typically happens is the contacts on the reostat get gummed up or corroded especially when the fuel level is low. This isn't a Z sender, but is similar to what is used in most cars these days. As the arm, moves up it causes the contact wiper to make contact with the various pc board contacts. Further up (more fuel), more LEDs lit on the gauge. Techron is proven to clean these contacts. I've had plenty of Audi buddys who have brought their senders back from the dead with a few applications..Techron even covers this on their website.. http://www.chevron.com/products/ourf...tives/tcp.aspx __________________ Steal my car! (SOLD)...Now Porsche Cayman S Oil Cooler DIY: Here! Last edited by Modshack; 11-06-2009 at 06:53 PM.

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11-06-2009, 12:15 AM	#2 (permalink)
Jason Enthusiast Member Join Date: May 2009 Location: Florida Posts: 309 Drives: Nissan 370Z Rep Power: 17	Ooo, I thought you guys were talking about chevron gas. Didn't know they had their own cleaner. I'll get some tomorrow.

11-06-2009, 05:26 PM	#3 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 654	Look at this exploded view of the fuel tank. 172 Fuel Tank :: Fuel & Engine Control :: Genuine Nissan Parts :: 370Z Parts (Z34) 2009+ :: Nissan Parts, NISMO and Nissan Accessories - Courtesyparts.com The sender has a float on the end of a metal arm. This arm can get bent, and a hard impact from a collision could certainly be enough to do that.

11-06-2009, 08:01 PM	#5 (permalink)
ChrisSlicks A True Z Fanatic Join Date: Mar 2009 Location: North East Posts: 6,203 Drives: 09 370Z Sport M6 Rep Power: 654	Believe me the Nissan ones can get bent, they aren't as sturdy as the one you show. It happened to me with my G35.