GU Earth Strap

Dear All

A work college of mine recently took his 2000 GU into Nissan because it appeared that either his alternator was failing or his ECU was on the blink. The initial symptoms were that his sub-tank light would come on and off for no reason. He did not bother with it until one night whilst raining all his dummy lights came on and his ECU went into limp home mode. He called RACQ who replaced his battery and the next morning he took the vehicle into Nissan.

They said that there is a problem with the way the electrical system is earthed. If you add a number of electrical accessories then the system uses the sub tank fuel level probe as an earth, which can lead to you ECU playing up (???). They said they needed to fit an extra earth strap some where on the vehicle to correct this. After paying ($100.00) for this earth strap he drove the vehicle out of the workshop only to discover that the sub-tank light was still coming on. He took the vehicle back to which they discovered that the voltage regulator and filter on the alternator was faulty and so not delivering the right voltage.

The question I have has any heard of this extra earth strap and where does it get fitted?

Thanks

Angus