Electronic Load Detector
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Joined: Jun 2003
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Electronic Load Detector
I have a Civic 2000 si, just got a b18 swap, I think one of the IAB wires came loose and grounded. I think that is what is causing my code 20 on the ECU. Is this what caused it and what are my options, do I really have to replace this unit, if I do can I grab one off another honda? What are my options? My Speedometer is not working, vtech aint kicking in. PLEASE HELP!
Registered User
Joined: Jan 2003
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From: Quebec City, Canada
I just swapped a B16A2 from a 97 del sol VTEC into my 97 Civic DX. For wiring I just reused my dx harness and added wires as needed. I checked the wiring diagrams from both cars and can't see anything different for the Electrical Load Detector wiring but yet I get the cel code. I was wondering if the ELD is different and if I should swap this too.
BOOST GOD
Joined: Apr 2003
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From: NL CT
again what does the ELD do, I have an extra wire on the harness I just made for the weird swap I'm doing. And I'm just curious what the ELD does. From it's description, I'm guessing it causes the car to idle higher under electrical load, so the alternator puts out more juice...
-PHiZ
-PHiZ
Registered User
Joined: Jan 2003
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From: Quebec City, Canada
OK... I found out how to get rid of my ELD cel code 20. Last night I finally wired my secondary oxygen sensor and both codes dissapeared (20 and 65). As I was wondering why... I realized that the oxygen sensors on obd2 hondas have 4 wires. 2 for the actual oxygen sensing and the other 2 are for the oxygen sensor heater. Since the ELD senses the ''total'' electrical load, it was seing that the circuit for the secondary oxygen sensor heater was open. And that is why it was throwing the code. I'm sure as a quick fix, I could have just connected a resistor between the two oxygen sensor heater wires and the cel code 20 would have dissapeared.
HMmmm... sounds like a test I will have to do in the future.
I guess the conclusion from this is that to get rid of this code... you have to make sure that every important component drawing current from your battery must be connected.
Hope this helps.
HMmmm... sounds like a test I will have to do in the future.
I guess the conclusion from this is that to get rid of this code... you have to make sure that every important component drawing current from your battery must be connected.
Hope this helps.
BOOST GOD
Joined: Apr 2003
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From: NL CT
Originally posted by Civic Type Sev
I realized that the oxygen sensors on obd2 hondas have 4 wires. 2 for the actual oxygen sensing and the other 2 are for the oxygen sensor heater. Since the ELD senses the ''total'' electrical load, it was seing that the circuit for the secondary oxygen sensor heater was open. And that is why it was throwing the code.
I realized that the oxygen sensors on obd2 hondas have 4 wires. 2 for the actual oxygen sensing and the other 2 are for the oxygen sensor heater. Since the ELD senses the ''total'' electrical load, it was seing that the circuit for the secondary oxygen sensor heater was open. And that is why it was throwing the code.
Hrm, I wonder how that works when you do a OBD2->OBD1 conversion, is the ECU smart enought to subtract that extra load from the equation to keep the ELD routine happy, must be. hrm.
-PHiZ
Registered User
Joined: Jan 2003
Posts: 189
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From: Quebec City, Canada
hmmm... good question. Maybe the obd2-obd1 conversion harness just short circuits the secondary oxygen sensor heater circuit so that the ELD circuit is closed??? Can anyone confirm that?
