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The A/F ratio recorded in Freescan logs is actually NOT a real measurement. It is what the ECU would ideally like to achieve.

The actually A/F can only be measuured by fitting a wideband O2 sensor pre-CAT. You can look at the narrow band o2 sensor voltage output in the Freescan log and that can give use some idea what is going on but very approximate.

Currenbtly, in open loop mode the only way to adjust the A/F ratio is trail and error on the injectors and then measuring the A/F ratio with a proper meter. I have done all this...


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Did anyone ever get Freescan / Espritmon to work on a PDA?

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88 Esprit NA, 89 Esprit Turbo SE, Evora, Evora S, Evora IPS, Evora S IPS, Evora S IPS SR, Evora 400, Elise S1, Elise S1 111s, Evora GT410 Sport

Evora NA

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Technically you are correct, Espritmon never ran on a PDA. But before I wrote Espritmon I had a small testprogram on my Palm III. The beauty of the Palm III was that the serial port actually could do 8192 bits/sec. With PDAs (e.g. the DELL Axim) I tried to use bluetooth to talk to to a RS232 - Bluetooth interface on my ALDL converter. On the Esprit side I got the bluetooth to work, I could do it wireless with my laptop and Espritmon. However, I could not get the bluetooth on the DELL Axim to do 8192, it stayed at 9600 bits/sec.  

I worked a bit on a port to Linux, will complete that if I have some more spare time.

A picture of the setup with the Palm III is on my website.

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I rewrote it and did get it running on a PDA. However, the problem as said before is the 8192 baud rate. PDA's just dont support that. The way around this was to use a plug in Compact Flash RS232 card in the PDA, but these weren't cheap.

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