@scotty Kilmer love your vids great work. I wanted to ask you regarding an 06 Honda Civic automatic R18 engine no check engine light on for codes. Alternator running on high output at all times . Any chance you can make a video on how to test the ELD . I have swapped out ELD and ecu , however car is running on high load and not switching to low out put mode. Car is horrible in gas with the alternator at high output . Thanks
I have with my alternator running on high output at all times.
I would like to the know the regular operating voltage for all the wires that feed the alternator. Ignition, Battery, field of rotor and control so I can get an idea of what’s causing the alternator to run at high output.
I have an R18 and with the alternator running in a load when there isn’t any load is causing the car to run horrible on gas. I have changed the alternator, checked wiring and replaced the ecm and problem still occurs.
Car has no check engine light and runs good but bad on gas. Any help would be great.
The pics gives you an example of the charging system and how it works. I need it to run on low output especially when the car doesn’t have a load so therefore it can be effiencent on gas. Sorry for the long message . Thanks in advance
The voltage regulator utilizes five terminals: Ignition (IG), Control (C), Field Reference (FR), Battery, (B) and Lamp (L). The B terminal is the high current circuit that's responsible for charging the battery. The other circuits are located in a single connector and are responsible for controlling the voltage regulator located within the alternator.
The IG circuit is crucial to proper charging system operation. Turning the ignition switch to the Run position will send source voltage to the IG terminal, which is required to energize the voltage regulator.
The C circuit is responsible for controlling the charge mode (based on the voltage on the ELD circuit). So indirectly, the ELD controls the charge rate (High/Low). The voltage regulator sends a voltage to the ECM through the C circuit. Depending on the charging systems needs, the ECM either holds the voltage high to signal the high output mode, or it pulls the voltage low to signal the low output mode. When the circuit C voltage is pulled low by the ECM: the charging voltage at the battery will range from 12.4 - 12.9V. The ECM uses the low output mode when the engine is starting or if all of the following parameters are met:
electrical Load below 15 Amps (varies with vehicle)
vehicle speed between 10-45 mph or at idle while in drive
engine speed below 3,000 rpm
coolant temperature above 167°F (75°C)
A/C Switch Off
intake air temperature above 68°F (20°C)
Outside of these parameters, the ECM will hold the voltage on the C circuit, which will place the charging system in the high output mode. In this mode, the charging voltage at the battery will range from 14.4-14.9V.
have your battery tested
I bought Brand new battery still problem exists
It sounds like the voltage regulator in the alternator has gone bad.
It has a brand new oem alternator . Problem still exist