NOLAGuzzi
Cruisin' Guzzisti
- Joined
- Dec 5, 2008
- Messages
- 102
Almost every day I ride (04 breva 750) I get a sporadic efi error light. Two separate axone equipped dealers have looked into it but they just clear the errors and say that ought to do it. Still the light will come on and then later go away. The common error message is open circuit to lambda sensor. When I plug in the VDSTS and select the lambda sensor parameters this is what I see at idle with a warmed up engine.
or sometimes the lambda % will jump up to 24 like this if I fiddle with the wires on the sensor going into the crossover. (If anyone could shed some light on what the % lambda is measuring I would be most appreciative.)
The voltage should not be 0 though? right? And is this the voltage across the sensor or the to the heater? There are two voltage measurements available in the VDSTS software lambda and lambda_1 and both will stay flat at zero at idle.
Is it safe to assume the sensor is faulty based on the computer diagnostics or would it be prudent to check the sensor with a meter? I know the repair manual outlines which pins to test and the expected proper voltage and resistance. Do these correspond with the lambda parameters in the software?
This error goes on every day and has been buggin me for about three years now. I could continue to ignore it but I would rather figure out what is going on.
Thanks in advance,
Mark
or sometimes the lambda % will jump up to 24 like this if I fiddle with the wires on the sensor going into the crossover. (If anyone could shed some light on what the % lambda is measuring I would be most appreciative.)
The voltage should not be 0 though? right? And is this the voltage across the sensor or the to the heater? There are two voltage measurements available in the VDSTS software lambda and lambda_1 and both will stay flat at zero at idle.
Is it safe to assume the sensor is faulty based on the computer diagnostics or would it be prudent to check the sensor with a meter? I know the repair manual outlines which pins to test and the expected proper voltage and resistance. Do these correspond with the lambda parameters in the software?
This error goes on every day and has been buggin me for about three years now. I could continue to ignore it but I would rather figure out what is going on.
Thanks in advance,
Mark