New owner, first issue - fuel guage (have covered the basics already).
#1
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New owner, first issue - fuel guage (have covered the basics already).
Hi folks, have been around rennlist for a while, with a 912 previously, and now a 964C4 and 356C combo. But I wanted a modern all-weather 911 too, and a 996TT was soooo the answer!
And so now I have an Iris blue metallic manual 2000 MY coupe sitting in front of the house, and I didnt think it would be too long before I was here asking for advice seeing as it is 14 years old, unbelievably. Hope you are as friendly as the folks on the 964 forum..
So, from searches I am aware of the system used to inform the fuel gauge and mistakes people make not adding enough fuel etc. My own gauge reads to the top when full (or just under) and goes down normally with normal MPG readouts until half way. It then sticks, along with miles to fill up on OBC staying static +/- 5 miles, while the MPG creeps up on OBC (I am guessing as it is calculating that I am covering miles but not using gas...)
The PO did not mention this and it did not show on the PPI (last week) - although I guess they would only know if it showed as an error code - unless it truely only just happened.
So, what do you folks think for a next step?
-I am assuming I havent caused this by resetting the trip whilst driving or something silly?
-Any point in checking the sender isnt fouling the pipes in the tank? (doubt it as the sender is redundant below half full?).
-If it is a faulty instrument cluster would that throw an error code?
All help now and over the next few years much appreciated! Cheers.
And so now I have an Iris blue metallic manual 2000 MY coupe sitting in front of the house, and I didnt think it would be too long before I was here asking for advice seeing as it is 14 years old, unbelievably. Hope you are as friendly as the folks on the 964 forum..
So, from searches I am aware of the system used to inform the fuel gauge and mistakes people make not adding enough fuel etc. My own gauge reads to the top when full (or just under) and goes down normally with normal MPG readouts until half way. It then sticks, along with miles to fill up on OBC staying static +/- 5 miles, while the MPG creeps up on OBC (I am guessing as it is calculating that I am covering miles but not using gas...)
The PO did not mention this and it did not show on the PPI (last week) - although I guess they would only know if it showed as an error code - unless it truely only just happened.
So, what do you folks think for a next step?
-I am assuming I havent caused this by resetting the trip whilst driving or something silly?
-Any point in checking the sender isnt fouling the pipes in the tank? (doubt it as the sender is redundant below half full?).
-If it is a faulty instrument cluster would that throw an error code?
All help now and over the next few years much appreciated! Cheers.
Last edited by Johnny G Pipe; 01-06-2014 at 12:59 PM. Reason: Typo. Tsk.
#2
Nordschleife Master
Welcome to the TT World!
2000 model?! WOW! Being in the US,I've only seen 2001 and up Turbos.
Regarding your question,I am not sure I understand...others might help...but maybe it's normal behavior.... You can try disconnecting the battery for half an hour and it might reset everything...
Anyway,good luck with it and enjoy!
2000 model?! WOW! Being in the US,I've only seen 2001 and up Turbos.
Regarding your question,I am not sure I understand...others might help...but maybe it's normal behavior.... You can try disconnecting the battery for half an hour and it might reset everything...
Anyway,good luck with it and enjoy!
#3
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Thanks! Yes a really early one. Hopefully the first production models are going to be more desirable in the future LOL.
Yes, considered a battery disconnect. Don't want to break anything else in the process though, any precautions before I do this?
(Paranoid new owner? Yep..)
Yes, considered a battery disconnect. Don't want to break anything else in the process though, any precautions before I do this?
(Paranoid new owner? Yep..)
#4
Nordschleife Master
Thanks! Yes a really early one. Hopefully the first production models are going to be more desirable in the future LOL. Yes, considered a battery disconnect. Don't want to break anything else in the process though, any precautions before I do this? (Paranoid new owner? Yep..)
#5
Race Director
That's an odd symptom. I do not recall hearing/reading about it before. You can try a battery disconnect. Be sure to follow the proper procedures.
You might derive the same benefit (if there is any) by pulling the fuse or fuses to the instrument cluster, too.
No need to recalibrate the fuel level system after a battery disconnect. The calibration info is retained in the instrument cluster controller.
Be sure you follow the proper procedures for disconnecting the battery and reconnecting the battery. They should be covered in the car's owners manual.
You might derive the same benefit (if there is any) by pulling the fuse or fuses to the instrument cluster, too.
No need to recalibrate the fuel level system after a battery disconnect. The calibration info is retained in the instrument cluster controller.
Be sure you follow the proper procedures for disconnecting the battery and reconnecting the battery. They should be covered in the car's owners manual.
#6
Drifting
The US model came out in 2000 also -- but many other countries title a car according to the year it is actually produced or reaches their shores, or other metrics like that, not a model year system that allows a car to be named the next model year provided the first ones were on our shores by Jan 1!
#7
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The 996TT can't mechanically measure the fuel level when it get below 1/3 tank..
I would inspect the float assy, it is connected to the top lid/cover on your fuel cell. In rare situations the wiring harness that goes to your fuel pump gets tangled in the float lever.
I would inspect the float assy, it is connected to the top lid/cover on your fuel cell. In rare situations the wiring harness that goes to your fuel pump gets tangled in the float lever.
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#9
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I wrote mechanically. The float level falls out of range at 1/3 tank level. The dash cluster/electronic calculations are well in control above that level.
#10
RL Community Team
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I would try a battery reset as suggested by neanicu. My TT had some electrical glitches including a wacky gas gauge when I first got it. I cured them all by disconnecting the battery and allowing the ECU to reset. If that doesn't work investigate the float as per Kevin.
On a side note if your TT is truly a 2000 you might want to do a little research on past owners. Your car might have been owned by Matt LeBlanc. He had a MY 2000 TT. It could up the value of the car.
On a side note if your TT is truly a 2000 you might want to do a little research on past owners. Your car might have been owned by Matt LeBlanc. He had a MY 2000 TT. It could up the value of the car.
#11
Drifting
Unless you mean Matt MacBlanc, I doubt it. OP is in Scotland. MY2000 Turbos are not rare there. Well, I suppose all 911 Turbos are rare there, but ya know what I mean.
#12
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Thanks Guys, sounds like a good start - will try a battery disconnect (as soon as I can locate the code for the Becker ..) and then look at the sender. I guess it just bolts in to the top of the tank like the old cars?
Funny you should mention the first owner, the logbook says 'Mr Rabbie Burns' and there are ink stains on the dash..
Looking at the manual (page 149 on mine) there is a procedure for unlocking the frunk by attaching a car battery to the fuse board. Clever..
Funny you should mention the first owner, the logbook says 'Mr Rabbie Burns' and there are ink stains on the dash..
Looking at the manual (page 149 on mine) there is a procedure for unlocking the frunk by attaching a car battery to the fuse board. Clever..
#14
Nordschleife Master
But trust me,I wouldn't really call it clever...lots of people got stuck when their batteries died...didn't know how to jump the fuse box or it didn't work,had the charger stuck in the trunk too,wanted to pull the cable tucked in the wheel well but couldn't get to it because of the wheel being in the way and the centerlock tool(case of GT3s,GTSs etc) was in the trunk as well,not to mention some with the wheel lock tool in the trunk...etc.
Best way,leave the trunk open after you've disconnected the battery!
#15
Racer
I would try a battery reset as suggested by neanicu. My TT had some electrical glitches including a wacky gas gauge when I first got it. I cured them all by disconnecting the battery and allowing the ECU to reset. If that doesn't work investigate the float as per Kevin.
On a side note if your TT is truly a 2000 you might want to do a little research on past owners. Your car might have been owned by Matt LeBlanc. He had a MY 2000 TT. It could up the value of the car.
On a side note if your TT is truly a 2000 you might want to do a little research on past owners. Your car might have been owned by Matt LeBlanc. He had a MY 2000 TT. It could up the value of the car.
If I remember it was a bad sending unit, cost like $700.