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Electric - sensors problem

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Your engine temp is going unstable for some reason and is reading as low as -40 in some places and is then causing the RPM limit to go to 1000rpm and the fueling will also be upset. 

I would check the connections to and from the water temp sensor and the sensor its self. 

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Hi,

thanks,

today i checked the wiring and it looks ok

tomorrow I try to change the sensors (coolant sensor and air temperature sensor)

 

I also found another problem I wanted to connect a solid state relay to aux ign5 but the aux does not work

may be a related problem?

thank you so much

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Internally there is a 0R resistor  that needs to be placed for the Ign  5 output to be available 

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That's a good capture as it shows the 5V out dropping to ground. 

Can you take the unit out and then power on the bench with just power and ground and see if you have the same 5V issue. 

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Hi,

thanks,

 

I power on the ecu only with pin 3 (+ 12v) and pins 1-2 (Gnd) without connecting anything else and 5V seems stable

log only ecu.jpg

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I power on the ecu with all wiring connected and only the engine off and the 5v seems ok

the problem comes up with the engine running

engine off.jpg

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Hi,

Thank you for your help

 

I only powered the trigger sensors and the engine runs well, no 5V issue

Tomorrow I check the remaining wiring and sensors

 

Can I send you the ECU to enable aux IGN 5?

Thanks

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