ZT Fuel Gauge never shows full query.

Abott10 · 22nd December 2016, 21:45

I've brim filled my MG ZT-T 1.8t several times since getting it back in the summer. Annoyingly, it NEVER shows full, the needle position being around four minutes past six when I brim fill the Fuel tank.

Would it be an in-tank fault or simple repositioning of the needle on its shaft in the fuel gauge next time I brim fill?

topman · 22nd December 2016, 21:52

Neither of mine ever should quite full on the fuel gauge. Perhaps something common to many ZTs.

mbonwick · 22nd December 2016, 22:28

Try running the IPK self-test (sorry, can't remember the number) before you reposition the needle.

That will tell you if the needle is in the correct part of its travel - and if it is, the fault lies elsewhere.

T-Cut · 23rd December 2016, 09:51

When the tank's completely full, you might check the rheostat resistance figures for each level float. They should be about the same as shown below.

If one is quite different or neither is near the 'full' value, you know the float arms or rheostats are suspect.

TC

minimutly · 23rd December 2016, 11:57

Really usefull, thanks tcut

22nd December 2016, 21:45	#1
Abott10 * Join Date: Apr 2014 Posts: 227 Thanks: 1,275 Thanked 1,917 Times in 1,328 Posts	ZT Fuel Gauge never shows full query. I've brim filled my MG ZT-T 1.8t several times since getting it back in the summer. Annoyingly, it NEVER shows full, the needle position being around four minutes past six when I brim fill the Fuel tank. Would it be an in-tank fault or simple repositioning of the needle on its shaft in the fuel gauge next time I brim fill?

22nd December 2016, 21:52	#2
topman This is my second home MG ZT-T 190 Join Date: Jun 2009 Location: Lincolnshire Posts: 5,493 Thanks: 372 Thanked 647 Times in 534 Posts	Neither of mine ever should quite full on the fuel gauge. Perhaps something common to many ZTs. __________________ Like being creative? http://www.qwghlm.co.uk/toys/dailymail/

23rd December 2016, 09:51	#4
T-Cut This is my second home Rover75 and Mreg Corsa. Join Date: Nov 2006 Location: Sumweer onat mote o'dust (Sagin) Posts: 21,753 Thanks: 341 Thanked 3,660 Times in 2,924 Posts	When the tank's completely full, you might check the rheostat resistance figures for each level float. They should be about the same as shown below. If one is quite different or neither is near the 'full' value, you know the float arms or rheostats are suspect. TC Last edited by T-Cut; 23rd December 2016 at 09:54..

22nd December 2016, 22:28	#3
mbonwick Gets stuck in Connoisseur SE 1.8 Auto Saloon Join Date: Jul 2015 Location: Kendal Posts: 633 Thanks: 129 Thanked 176 Times in 147 Posts	Try running the IPK self-test (sorry, can't remember the number) before you reposition the needle. That will tell you if the needle is in the correct part of its travel - and if it is, the fault lies elsewhere.

23rd December 2016, 11:57	#5
minimutly Posted a thing or two mg zt Join Date: Mar 2014 Location: cardigan Posts: 1,087 Thanks: 28 Thanked 187 Times in 158 Posts	Really usefull, thanks tcut