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kpfoten |
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#21
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Member ![]() ![]() Group: Members Posts: 220 Joined: 15-April 08 From: Escanaba, MI Member No.: 8,927 Region Association: None ![]() |
Yellow wire pulled from solenoid--does not start on its own... Relay board fried?? I'll test it out... |
underthetire |
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#22
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914 Guru ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California ![]() |
I had a similar issue when my cold start injector was plugged in (IMG:style_emoticons/default/confused24.gif)
Must have been back feeding somewhere. Doesn't matter anymore with the megasquirt. Don't use that injector. |
McMark |
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#23
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914 Freak! ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Retired Admin Posts: 20,180 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None ![]() |
Pull the rearward connector from the relay board and check pin six on the board for 12v (you have a voltmeter/multimeter, right?) when you connect the battery.
If it doesn't have power, your problem is in that harness. If it does have power, pull the forward connector from the relay board and check pin 1 in the connector for 12v when you connect the battery. If it doesn't have power, your problem is in the relay board. If it does have power, your problem is likely in the key switch. |
kpfoten |
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#24
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Member ![]() ![]() Group: Members Posts: 220 Joined: 15-April 08 From: Escanaba, MI Member No.: 8,927 Region Association: None ![]() |
Key switch disconnected -- Engine Cranks when cables connected. FI Harness disconnected from relay board -- Engine cranks New (used in good condition) relay board connected -- Engine cranks Didn't check for 12V on front or rear connector yet. Yellow wire disconnected from starter -- Engine does not crank. I'm stumped--maybe I will change the starter and see what happens. |
McMark |
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#25
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914 Freak! ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Retired Admin Posts: 20,180 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None ![]() |
I doubt it will help. I'd be looking more at the relay board.
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Dave_Darling |
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#26
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914 Idiot ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Members Posts: 15,209 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California ![]() ![]() |
The problem started when you unplugged and plugged in the connectors on the relay board. Those are your suspects.
Make sure the wire colors in the connectors match up with the ones on the wiring diagram. If you get a hot wire (usually red) where that yellow wire should be on the front connector, you'll get exactly the symptoms you are describing. Check for voltage at the connectors. Check that the wires are in the right places. --DD |
charliew |
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#27
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,363 Joined: 31-July 07 From: Crawford, TX. Member No.: 7,958 ![]() |
I sounds to me like you were trying to fix another problem when you put this one one the car. What were you originally fooling around on the relay board trying to fix?
I think maybe this problem was put on the car before you started checking out the relay board. |
kpfoten |
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#28
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Member ![]() ![]() Group: Members Posts: 220 Joined: 15-April 08 From: Escanaba, MI Member No.: 8,927 Region Association: None ![]() |
It didn't crank (was normal) until I unplugged the 14 pin from the relay board and went to plug it back in. I'm investigating a cracked connector--hopefully something is associated with it... (it cracked as I was removing it (and I thought I was gentle...)). Will work on it tonight... |
kpfoten |
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#29
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Member ![]() ![]() Group: Members Posts: 220 Joined: 15-April 08 From: Escanaba, MI Member No.: 8,927 Region Association: None ![]() |
How many of you were banking on the fact that I'm a freaking moron? Connector reversed. Problem solved. Sorry to waste your time but thanks for the encouragement... (IMG:style_emoticons/default/smile.gif) |
charliew |
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#30
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 2,363 Joined: 31-July 07 From: Crawford, TX. Member No.: 7,958 ![]() |
The connector probably cracked when you forced it on backward. You are learning like everyone else did. Part of the learning process is avoiding making a problem worse than it was when you started. Just write it up as a lesson learned from not paying enough attention and also how much more time it cost to figgure it out later. We usually remember the costly mistakes better. This is from someone thats made a few in 40 years of trouble shooting electro-mechanical problems on cars and business machines. Mostly when it cost you money is when you remember it the best.
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kpfoten |
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#31
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Member ![]() ![]() Group: Members Posts: 220 Joined: 15-April 08 From: Escanaba, MI Member No.: 8,927 Region Association: None ![]() |
Yeah, the connector cracked as I was pulling it upward to remove... I didn't think I put a whole lot of force on it, but it cracked anyway... For some reason, the cable twisted to make it look like it was supposed to go back on the 'wrong' way... Then I noticed the plastic "cradle" on the relay board for the harness itself... Well, the one good thing was that I learned about how the relay board works... I guess it wasn't all a waste of time. Now to figure out if my fuel pump is getting 12V. K |
McMark |
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#32
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914 Freak! ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Retired Admin Posts: 20,180 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None ![]() |
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