ok im having this same problem for a while now the ELD has power through the plug, all grounds hooked up, i took out cabin harnest and took all the tape off and found were they run to there all hooked up and put harnest back and nothing happens and also when i turn the ingnition on and instead of hearing pump i hear a buzz at the fuel pump main relay and doesnt start what could possibly happening? i changed the fuse box to si and nothing i changed the relay nothing i changed the ecu nothing i changed the alternator nothing i just dont know whats going on can anyone help on this thankx

 

anyone????

 

Make sure you check to see if #14 Fuse (Alternator Solenoid Valve) under the dash is good like it says, that runs the main relay, ELD etc.

I know you said you had voltage going through the plug in the ELD connecter under the hood, but check these steps out:

Code 20 - Electric Load Detector

First make sure you have a good battery....


Open the Main Fuse box lid (Right side shock tower).
Disconnect the 3 point connector, from the ELD unit. (Follow the harraness that runs through the box).
With the ignition switch ON, there should be battery voltage between the BLK/YEL(+) and BLK(-) terminals.

If there is no voltage, check for:

Blown No. 14 (10A) fuse in the dash fuse box.
An open in the BLK/YEL(+) wire between the dash fuse box and the main fuse box.
Pour ground (G201)
If there is voltage then goto the next step.....

Check for voltage between the GRN/RED terminal and body ground with the ignition switch ON. There should
be approximately 5V.

If the voltage(5V) is not specified, check the alternator control system.
If the voltage is as specified then goto next step.....

Connect the 3 - Point Connector to the ELD unit.

Check for volatage between the GRN/RED terminal and body ground, with the ignition switch ON and turn on the
headlight low beam's.

There should be approximately 2V.

If the voltage(2V) is not specified, replace the main fuse box (ELD unit is not available separately)
If the voltage is as specified above, ELD unit is OK.


If the ELD checks out, then you know you have a wiring issue somewhere then, also I am not 100% sure if the under the hood fuse box is interchangeable between sub-models.

 

ok my 90 dx was running good when i never did the wire tuck but when i did the wire tuck thats when i got a code 20 and i took my whole bay and cabin harnest off and took off all the tape and all wires are good sq i dont know whats going on can i use an 0bd1 alternator for an obd0 harnest?

 

ok guys i fixed my code 20 now it "it was a cut ground wire" but there is still a problem with the fuel pump relay everytime i turn the ignition on it buzzs and then fuel is not coming up from the gas tank so im not sure what this is