A place to discuss hardware/software and diagnostic procedures
False reading on scantool
3 years 3 months ago #45795
by spit64
False reading on scantool was created by spit64
I have what looks like an air mass meter on an Opel Astra H 2005 but it only has 2 wires and I can't find an air mass meter on a wiring diagram.
I using a new Autel MX 808 and I have a pid for air mass sensor and its response to throttle movement.
Can you have a false PID reading on a scan tool because I think the sensor is not an Air Mass sensor it is an air temp sensor?
Any thought on that
I using a new Autel MX 808 and I have a pid for air mass sensor and its response to throttle movement.
Can you have a false PID reading on a scan tool because I think the sensor is not an Air Mass sensor it is an air temp sensor?
Any thought on that
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3 years 3 months ago #45800
by Noah
"Ground cannot be checked with a 10mm socket"
Replied by Noah on topic False reading on scantool
Sounds like a calculated value.
It's not completely unheard of to have a live mass air flow data pid and not have a mass air flow sensor.
The PCM is probably comparing the MAP, TPS, IAT and probably some other sensor information to infer a mass air flow value.
It's not completely unheard of to have a live mass air flow data pid and not have a mass air flow sensor.
The PCM is probably comparing the MAP, TPS, IAT and probably some other sensor information to infer a mass air flow value.
"Ground cannot be checked with a 10mm socket"
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3 years 3 months ago #45810
by spit64
Replied by spit64 on topic False reading on scantool
Thanks Noah
The following user(s) said Thank You: Noah
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