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Emu not stable volt reading from Ecu
Posted: Thu Jul 28, 2016 6:13 am
by r20vt
Hi I have 1jz with ecumaster and after building new wiring the Ecu is very good working with standard coils and low resistance fuel injectors I have no stable reading in voltage from the Ecu but the alternator is stable charging
Do you know what is happening it is possible that Ecu has problem
Re: Emu not stable volt reading from Ecu
Posted: Thu Jul 28, 2016 7:17 am
by r20vt
Re: Emu not stable volt reading from Ecu
Posted: Thu Jul 28, 2016 7:29 am
by r20vt
It is possible to be test version problem I running 1.157
Re: Emu not stable volt reading from Ecu
Posted: Thu Jul 28, 2016 10:28 pm
by ATS_Scott
That is not abnormal, and remember your digital voltmeter probably has a built-in "buffer" to make it easier to read. Usually when I have an unstable Voltage reading at the EMU, it is due to either a wiring issue, or the alternator itself is just noisy. I had one alternator that was really noisy, and I spent hours trying to reduce the noise to no avail. I gave up on it and a few weeks later the alternator completely failed. I checked voltage after the alternator was replaced, and it was about as stable as I have seen.
Re: Emu not stable volt reading from Ecu
Posted: Fri Aug 05, 2016 9:03 pm
by alper
if u get the power from a relay directly connected to the battery, your voltage readings will be perfect.