Analog Temp Gauge
Discussion
John,
IIRC, both the coolant temp. and the fuel level analogue displays have micro-switches at zero scale and full scale readings. (At least that is how I understand it)
For a quick & dirty attempt to fix, I would remove the top and bottom instrument 'binnacle' cowls. You've got 2 screws (1 machine and 1 self tapper) holding lower section on, and 2 off self tappers holding top section to lower section. Removal of top section should be done carefully, as the 'swaged' step at the front that fits around the shaped polished alloy of the instrument cluster is fragile.
You should now be able to spray some Servisol (switch cleaner) into the gauge area. There are also some ribbon connector plugs - which I think activate the gauge(s) which might benefit from a similar dose of contact spray.
List of EFI codes here from www.mytuscan.co.uk
What do the EFI fault codes mean?
Some TVR Tuscan owners report that the EFI warning dash light will flicker on and off or come on randomly, usually due to moisture in the engine bay. Many people report having this problem just after washing the car or in wet weather. Code L sometimes flickers on and off randomly but is usually nothing to worry about! The EFI warning light will usually stay on if there is a more serious problem. Below are the diagnostic codes for the Tuscan MkI.
•A - Speedo sensor not activating zero switch
•B - Speedo sensor not releasing zero switch
•C - Water level sensor not activating zero switch....So this might be issue?
•D - Water level sensor not releasing zero switch
•E - Fuel level sensor not activating zero switch
•F - Fuel level sensor not releasing zero switch
•G - Water level sensor open circuit
•H - Air temp sensor open circuit
•I - Oil temp sensor open circuit
•J - Oil pressure sensor open circuit
•K - Fuel level sensor open circuit
•L - Erratic road speed sensor input
•O - No communications between analogue and control
Nick
IIRC, both the coolant temp. and the fuel level analogue displays have micro-switches at zero scale and full scale readings. (At least that is how I understand it)
For a quick & dirty attempt to fix, I would remove the top and bottom instrument 'binnacle' cowls. You've got 2 screws (1 machine and 1 self tapper) holding lower section on, and 2 off self tappers holding top section to lower section. Removal of top section should be done carefully, as the 'swaged' step at the front that fits around the shaped polished alloy of the instrument cluster is fragile.
You should now be able to spray some Servisol (switch cleaner) into the gauge area. There are also some ribbon connector plugs - which I think activate the gauge(s) which might benefit from a similar dose of contact spray.
List of EFI codes here from www.mytuscan.co.uk
What do the EFI fault codes mean?
Some TVR Tuscan owners report that the EFI warning dash light will flicker on and off or come on randomly, usually due to moisture in the engine bay. Many people report having this problem just after washing the car or in wet weather. Code L sometimes flickers on and off randomly but is usually nothing to worry about! The EFI warning light will usually stay on if there is a more serious problem. Below are the diagnostic codes for the Tuscan MkI.
•A - Speedo sensor not activating zero switch
•B - Speedo sensor not releasing zero switch
•C - Water level sensor not activating zero switch....So this might be issue?
•D - Water level sensor not releasing zero switch
•E - Fuel level sensor not activating zero switch
•F - Fuel level sensor not releasing zero switch
•G - Water level sensor open circuit
•H - Air temp sensor open circuit
•I - Oil temp sensor open circuit
•J - Oil pressure sensor open circuit
•K - Fuel level sensor open circuit
•L - Erratic road speed sensor input
•O - No communications between analogue and control
Nick
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