Problems with ECT readings

s300 and SManager software questions & answers
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Hectorm.
Posts: 5
Joined: Tue Aug 16, 2022 8:19 am

Problems with ECT readings

Post by Hectorm. »

Civic ej2
D16z6 turbo
P28 with s300v3 (57637)
Aut. Arness
Rc750 injectors with resistance box

Good day, I need to know how to repair my ECU. the fault it presents is that it reads the ECT sensor wrong, negative numbers and small jumps from positive numbers to negative numbers, I assume that it is my p28 that presents a fault, it is p28 with hondata s300v3. i tried another ecu with demon II and the fault does not appear in that ecu. some help?

I changed the sensor and it's still the same, showing negative numbers. check the wiring and it seems to be ok, any ideas?
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Spunkster
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Joined: Fri Sep 20, 2002 5:06 pm
Location: Hondata

Re: Problems with ECT readings

Post by Spunkster »

It sounds like you need to replace the ECU. We do not repair ECU's.
Hectorm.
Posts: 5
Joined: Tue Aug 16, 2022 8:19 am

Re: Problems with ECT readings

Post by Hectorm. »

The s300v3 isnt the problem?
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Spunkster
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Location: Hondata

Re: Problems with ECT readings

Post by Spunkster »

No, this would not be from the s300.
Hectorm.
Posts: 5
Joined: Tue Aug 16, 2022 8:19 am

Re: Problems with ECT readings

Post by Hectorm. »

Do you think that if i change the capacitors fix the problem? Thank you so much
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Spunkster
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Joined: Fri Sep 20, 2002 5:06 pm
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Re: Problems with ECT readings

Post by Spunkster »

You can try, but probably not.
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