 I dont hate wiring, anymore |
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| grasshopper |
  Nov 27 2005, 02:42 PM
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#1
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Advanced Member  Group: Members Posts: 2,613 Joined: 10-December 04 From: Valdosta, GA Member No.: 3,258 Region Association: None  |
well, i figured out all of my wiring porblems that i had been bitching about for the last two weeks or so today. All at one time..... (IMG:http://www.914world.com/bbs2/html/emoticons/dry.gif) At first, there were no blinkers, no brakes, erractic headlights, no reverse lights, and no power to the relay board... well, today i pulled the connector out of the igition switch, and connected a 74 switch, put the key in, and everything worked.... everything (IMG:http://www.914world.com/bbs2/html/emoticons/smile.gif) I didn't think that so much was dependent on that...... the only thing that is preventing my engine from running now is the fuel pump. This is a FI 1.8 engine. I'm thinking its the dual relay, but i'm not sure... i made a jumper wire from the big black wire with the red stripe on it, to the positive side of the battery, and the fuel pump fired right up, so thats why i think its the dual relay... Also, if i pry the cap off of the little round relay on the relay board and push the contacts together, it runs the pump... something isn't telling that little relay to click...what is it??? (IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif) thanks to everyone that has helped (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif)
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| Long Prong |
Nov 27 2005, 02:44 PM
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#2
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Member Group: Members Posts: 53 Joined: 26-June 05 From: Between Nuts and Bolts Member No.: 4,329 |
turn your car on...not start just on
and stick your finger in that AFM and push the flap up.... the fuel pump wont run if the flap is completly closed. |
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| Aaron Cox |
Nov 27 2005, 02:46 PM
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#3
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
yup (IMG:http://www.914world.com/bbs2/html/emoticons/agree.gif) fuel pump runs while cranking..... unlike priming itself like djet |
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| grasshopper |
Nov 27 2005, 02:47 PM
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#4
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Advanced Member Group: Members Posts: 2,613 Joined: 10-December 04 From: Valdosta, GA Member No.: 3,258 Region Association: None |
i had my dad hold the fuel pump, while i was cranking it, and he said it wasn't doing anything (IMG:http://www.914world.com/bbs2/html/emoticons/confused24.gif)
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| Allan |
Nov 27 2005, 02:48 PM
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#5
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Teenerless Weenie Group: Members Posts: 8,373 Joined: 5-July 04 From: Western Mesopotamia Member No.: 2,304 Region Association: Southern California |
Isn't there a fuse back on the relay board that feeds the relay?
Maybe? |
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| grasshopper |
Nov 27 2005, 02:51 PM
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#6
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Advanced Member Group: Members Posts: 2,613 Joined: 10-December 04 From: Valdosta, GA Member No.: 3,258 Region Association: None |
there are two fuses back there, but i dont know if they controll anything (IMG:http://www.914world.com/bbs2/html/emoticons/rolleyes.gif)
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| Long Prong |
Nov 27 2005, 02:53 PM
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#7
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Member Group: Members Posts: 53 Joined: 26-June 05 From: Between Nuts and Bolts Member No.: 4,329 |
hold the AFM flap up, not the fuel pump....
the 1.8 ECU tells the fuel pump to turn on only when air is coming into the engine, i guess to try to prevent running rich at crankover and to prevent a backfire...also would work good in a wreck too i would imagine. |
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| Mueller |
Nov 27 2005, 02:57 PM
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#8
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None 
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are you getting power to the injectors?
when the AFM opens, the dual relay (near the battery) powers up and provides power to the fuel pump and the injectors..... the injectors fire when the coil collapses and the ECU grounds one side of the injectors.... |
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| ejm |
Nov 27 2005, 03:51 PM
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#9
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I can see the light at the end of the tunnel Group: Members Posts: 2,695 Joined: 3-February 03 From: Massachusetts Member No.: 224 Region Association: None |
With L-jet the dual relay runs the pump, not one of the relays on the board. There is a wire from the dual relay that goes to the relay board at T12/12 to power up the fuel pump. The relay on the board won't run the pump because its looking for a signal from a D-jet ecu. (IMG:http://www.914world.com/bbs2/html/emoticons/wink.gif) Check out the diagram at the bird |
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| TINCAN914 |
Nov 27 2005, 03:52 PM
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#10
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Summer's Commin... Group: Members Posts: 2,440 Joined: 18-August 05 From: Colorado Springs, CO. Member No.: 4,611 Region Association: Rocky Mountains |
(IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif) (IMG:http://www.914world.com/bbs2/html/emoticons/smilie_pokal.gif) Keep going man... When your done you can come over and help me out. You da man!!!
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| grasshopper |
Nov 27 2005, 04:49 PM
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#11
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Advanced Member Group: Members Posts: 2,613 Joined: 10-December 04 From: Valdosta, GA Member No.: 3,258 Region Association: None |
just checked, and no (IMG:http://www.914world.com/bbs2/html/emoticons/unsure.gif) ..... what now?? |
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| scotty b |
Nov 27 2005, 05:01 PM
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#12
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rust free you say ? Group: Members Posts: 16,375 Joined: 7-January 05 From: richmond, Va. Member No.: 3,419 Region Association: None |
Congrats and thanks for the info. I had no idea the switches were wired so radically different. something to put in the mental file. I think (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif)
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| grasshopper |
Nov 27 2005, 05:27 PM
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#13
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Advanced Member Group: Members Posts: 2,613 Joined: 10-December 04 From: Valdosta, GA Member No.: 3,258 Region Association: None |
anyone?? (IMG:http://www.914world.com/bbs2/html/emoticons/wavey.gif) ok, i get power to the points, and i can get the dual relay to click..... is it supposed to click when i turn the switch on??? now im thinking it has something to do with the AFM.... (IMG:http://www.914world.com/bbs2/html/emoticons/dry.gif) i can tell where the power ends.... help
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