Discussion
When I looked into the same thing it appears that 'pay a tuner who works with Pectel ECUs to get it unlocked' was the only method I came across. I spoke with Owen Development near Oxford and they said it would be no problem around £150 if I remember correctly. There was also a guy on ebay who services Pectel ECUs and he said he could do it too. Be warned it does erase the base map apparently so you at least need a base map to get the engine up and running again.
If you might consider selling the ECU as is then let me know.
If you might consider selling the ECU as is then let me know.
Yeah my G20 idles quite high, about 1500rpm from memory. From cold it usually always starts happily enough, runs for 10 seconds or so then dies unless you drive off straight away. Second time it starts and then holds OK.
The Zetec is a pretty simple engine to run ECU wise. If you're handy technically it can be done with DIY assembled Megasquirt. Otherwise my advice would be a find a local tuner who you want to work with and ask what they recommend and are familiar with.
The Zetec is a pretty simple engine to run ECU wise. If you're handy technically it can be done with DIY assembled Megasquirt. Otherwise my advice would be a find a local tuner who you want to work with and ask what they recommend and are familiar with.
Here's something that I found about a Pectel T2 controlling a Zetec in a Formula Ford:
The Idle Control Valve:
"The ECU will determine a suitable target idle speed based on engine temperature (which will be as low as possible without risk of stalling). It will signal the ECU in pulses to vary the amount of air being bypassed and control the rpm as close as possible to the target. As the engine warms up the rpm will drop (so as not to burn excessive fuel). When up to full temperature the engine should tick over at 800 – 900 rpm."
And this under Air and Coolant Sensors:
"The temperature sensors are also used to set the engines idle speed. At low ambient temperature the target idle speed will be around 1500 – 1600 rpm. As the engine heats up this will reduce to a minimum of 800 – 900 rpm."
The Idle Control Valve:
"The ECU will determine a suitable target idle speed based on engine temperature (which will be as low as possible without risk of stalling). It will signal the ECU in pulses to vary the amount of air being bypassed and control the rpm as close as possible to the target. As the engine warms up the rpm will drop (so as not to burn excessive fuel). When up to full temperature the engine should tick over at 800 – 900 rpm."
And this under Air and Coolant Sensors:
"The temperature sensors are also used to set the engines idle speed. At low ambient temperature the target idle speed will be around 1500 – 1600 rpm. As the engine heats up this will reduce to a minimum of 800 – 900 rpm."
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