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Engine Specific Info and Questions => IDI Engine => Topic started by: nissannx on March 31, 2015, 03:54:41 am

Title: Inaccurate fuel guage
Post by: nissannx on March 31, 2015, 03:54:41 am

1992 jetta diesel n/a

When my guage reads 1/4 tank I have no diesel left in my tank. How do I fix this?

Thanks

Title: Re: Inaccurate fuel guage
Post by: ORCoaster on March 31, 2015, 11:45:18 am

Two ways, one repaint the gauge so that 1/4 is really E.  The other is to rebend the arm on the float in the tank so that the resistance being produced by the sender is more in line with the gauge needs on the dash.  If you are looking at 1/4 tank on the gauge and are empty you need to bend the arm down some so that it sends the proper signal to the gauge. 

Title: Re: Inaccurate fuel guage
Post by: nissannx on April 01, 2015, 09:01:56 am

 Is there access in the trunk or do I drop the tank?

Title: Re: Inaccurate fuel guage
Post by: theman53 on April 01, 2015, 10:13:05 am

If it is like the mk1 you can bend the top where the float attaches to the sender...not bend the wire, but the tab it hits when full or empty.

Title: Re: Inaccurate fuel guage
Post by: ORCoaster on April 01, 2015, 10:24:34 pm

I thought the Jetta had access from the trunk.  Remove liner and look for round ring and wires.  Tap the ring loose and remove gauge out the top.  Someone with a Jetta tell him if I am wrong.

Title: Re: Inaccurate fuel guage
Post by: Smoker on April 02, 2015, 04:56:20 am

Mk2's do have access to the tank, I forget if it's in the trunk or under the back seat.

Title: Re: Inaccurate fuel guage
Post by: theman53 on April 02, 2015, 06:37:59 am

Mine you can get to through the trunk 86 jetta