Has anyone got a circuit diagram for the ABY engined coupe ? Can I have a copy please ? I'm most interested in the engine management wiring.
I have been collect some waveforms from various parts of the engine with a PC based oscilloscope including O2 sensor, injector and primary ignition pulses. I have noticed on pin 3 (signal) of the the Air mass sensor it sits at about 2.5V, which is high compared to other vehicles I have looked at. Does anyone know if any of the pins are meant to go directly to ground. I scoped them all and there is no solid ground -about .5V at one end (front) May or maynot be a problem. Who can tell me ? Car is running well otherwise.
Thanks guys - circuit would be so helpful.
Dave
I have been collect some waveforms from various parts of the engine with a PC based oscilloscope including O2 sensor, injector and primary ignition pulses. I have noticed on pin 3 (signal) of the the Air mass sensor it sits at about 2.5V, which is high compared to other vehicles I have looked at. Does anyone know if any of the pins are meant to go directly to ground. I scoped them all and there is no solid ground -about .5V at one end (front) May or maynot be a problem. Who can tell me ? Car is running well otherwise.
Thanks guys - circuit would be so helpful.
Dave
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