- Mon May 10, 2021 9:50 pm
#50213
Hi I just finished connecting my Speeduino 0.4.4c smd board. But trying it I realized 2 things:
-If I connect GND to ground and +12 volts only on the idle valve connected to pin 37, the ECU magically turns on, this also applies to VVT pin 38.
-If I measure the voltage between the correct positive (+12) and the idle or VVT output (pin 37 or 38) I find 10 volts, in fact it happens that if I mount the ECU on my car the idle valve is always open even with the engine turned off.
-When the ECU is switched on normally between the positive (+12) and an injector channel switched off the voltage is 2 volts.
I am not an electronic technician but I want to understand if the ECU is faulty.
Connections are ok.
Has anyone ever noticed this?
Thanks in advance for your reply.
-If I connect GND to ground and +12 volts only on the idle valve connected to pin 37, the ECU magically turns on, this also applies to VVT pin 38.
-If I measure the voltage between the correct positive (+12) and the idle or VVT output (pin 37 or 38) I find 10 volts, in fact it happens that if I mount the ECU on my car the idle valve is always open even with the engine turned off.
-When the ECU is switched on normally between the positive (+12) and an injector channel switched off the voltage is 2 volts.
I am not an electronic technician but I want to understand if the ECU is faulty.
Connections are ok.
Has anyone ever noticed this?
Thanks in advance for your reply.