| Unichip - Frequently Asked Questions |
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· Do Unichips need to be serviced or retuned? |
There is no need to re-adjust the Unichip unless the engine has been modified. |
It is nearly impossible for the Unichip data to change after the Unichip ECU has been programmed, causing the engine to be detuned. |
It is possible however for the fuel pressure to drop (if the fuel pump deteriorates) which would cause the engine to run a leaner air fuel ratio than normal. |
Other items such as fuel injectors and spark plugs will need servicing from time to time which will also change the state of engine tune. |
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| · Should I use Leaded or Unleaded fuel with the Unichip? |
Your engine should always be tuned using the fuel, which you intend to use day to day. |
Leaded fuel will always produce the best power result, as it will allow the engine to use all of the ignition timing in the timing map. |
As most modern EFI engines utilise knock sensors, should you change from Leaded to unleaded, the engine's knock sensors will detect detonation and reduce timing accordingly, resulting in a loss of power. |
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| · Where is the Unichip installed? |
The Unichip ECU is usually fitted next to the factory engine control unit. |
The Unichip ECU is marginally larger that a cigarette pack. Dimensions are 160mm length x 80mm height x 20mm width. |
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| · How much time is required to install the Unichip? |
This depends on the engine configuration and whether the engine is standard or modified, normally aspirated or turbocharged, two or four wheel drive. |
A vehicle that is factory standard normally aspirated two-wheel drive, can be completed in 3 hours. |
A more sophisticated vehicle such as a 993 Twin Turbo Porsche may take up to 6 hours due to the extra mapping of turbocharger pressure. |
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| · Can the Unichip be removed and reinstalled on another car? |
Removing the Unichip is a simple 15 to 30 minute procedure. |
Once the Unichip is removed, the factory engine control unit is returned to standard condition. |
It is possible that the Unichip will be suitable for your next car, albeit appropriately reprogrammed. |
There are four popular variants of Unichip hardware. |
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