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350z avg mpg computer reset


Bridgey

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Moved to a more appropriate sub section area. ;) 

 

It's been along time now since I had my Zed but I believe you just hold the button down that you use to cycle through once you see the average MPG pop up. It should just clear and then leave "- - -" until you've driven some more for it to recalculate. 

 

Hopefully some members with Zeds still will confirm 100%. :thumbs:

 

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Just fitted some UK gauges to my JDM model, so as I could now see mpg rather than litres per whatever, I then tried to reset the mpg.

 

1) Cycle through using the top left button until mpg shows.

2) Press and hold the lower button until the gauge reading starts flashing and then resets to nulls (dashes).

3) Drive for a mile or so and then the new mpg figures will display.

 

Hope this helps :)

 

There is still one function that does not work, which looks like it may be a clock, currently just flashing showing nulls(dashes) when I cycle to it.

Can anybody confirm if there is a clock on UK models, and will a UK heater control module be needed to get this working?

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6 hours ago, Willsy1980 said:

On the uk ones there is usually:

mpg, dte, clock, temp, lap time and speed. Think that's them all iirc

Only ever use the clock and DTE :) 

Hi Willy,

thanks for confirming there is a clock function :)

Now I just need to know how to get hat working.

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No worries, willy was close but willsy is better :p

btw, I missed the rev limit indicator setting too..

Full list is:

clock

speed

outside temp

DTE 

average fuel consumption and speed

elapsed time

Stopwatch

trip odometer

Shift indicator light 

It may be an ecu thing . Here is an archive on the same topic:

 

Edited by Willsy1980
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On ‎19‎/‎03‎/‎2018 at 19:30, Willsy1980 said:

No worries, willy was close but willsy is better :p

btw, I missed the rev limit indicator setting too..

Full list is:

clock

speed

outside temp

DTE 

average fuel consumption and speed

elapsed time

Stopwatch

trip odometer

Shift indicator light 

It may be an ecu thing . Here is an archive on the same topic:

 

Apologies - Willsy! :)

It could be ecu related, although the average mpg on the UK gauges does match my actual mpg  calculated manually, as I always fill to the brim and check the mileage from the trip on the speedo.

 

Digging around in the US service manuals shows the triple gauges are controlled by the heater air-con module, so looks like I need a UK version of that too to get the clock working!

Anybody know the part number?

 

 

US Manual for 2004:

UNIFIED METER AND A/C AMP PFP:27760

System Description AKS00955

For the unified meter and A/C amp., the signal required for controlling

the combination meter and triple meter are integrated in

the A/C auto amp.

UNIFIED METER AND A/C AMP DI-59

DI

Revision: 2004 November 2004 350Z

Between Unified Meter and A/C Amp. and Triple Meter

 

Unit: Unified meter and A/C amp

Input .

LCD indication condition signal

Shift-up indicator setting signal

Oil pressure warning lamp signal

Triple meter receive error signal

Outside air temperature signal

Output

Outside air temperature warning signal

Trip distance signal

Trip time signal

Average vehicle speed signal

Average fuel consumption signal

Vehicle speed signal

DTE (Distance to empty) signal

DTE (Distance to empty) warning signal

Trip computer mode switch signal

Trip computer setting switch signal

Self-diagnosis condition signal

Odo/trip switch signal

Triple meter specifications signal

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