 75 1.8 garage find won't start |
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| ClayPerrine |
 Dec 19 2009, 04:45 PM
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#41
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Life's been good to me so far.....  Group: Admin Posts: 16,318 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille 
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QUOTE(jhelgesen @ Dec 19 2009, 11:06 AM)  This morning, I broke down and sucked the smidgen of gas out of the tank and replaced it with 4 gallons of nice fresh super unleaded. Checked all was still hooked up and turned the key. After several attempts I got a pop. Kept trying and she fired..... IT IS.....ALIVE!!!!! She only ran a few seconds, so I tried again with the same results. Fuel pump runs when starting, but does not continue. I'm leaning toward the AFM, should have a buddy bringing one over tomorrow to test the theory. Turn the key on and open the flap with your fingers. If the pump doesn't run, you have an electrical problem. If it does, you have a problem somewhere between the throttle body and the Air flow meter. My bet is the oil cap seals. If they are bad, the car won't run... makes a big false air problem. |
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| jhelgesen |
Dec 20 2009, 10:46 AM
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#42
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Newbie Group: Members Posts: 42 Joined: 14-July 08 From: Charlotte Member No.: 9,299 Region Association: None |
Okay, I'm getting close. One the phone last night tracing lines with a buddy, then looking at the wiring diagram for the relay this morning got me thinking.
Starter circuit of the relay works to the coil, but not the ecu side, the one going through the resister. I check for resistance and continuity through the relay on terminal 86b and get nothing, soooooo resister should be bad. Anyone know the value of that resister? Maybe I can hit the shack this afternoon and replace it. |
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| jhelgesen |
Dec 20 2009, 10:56 AM
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#43
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Newbie Group: Members Posts: 42 Joined: 14-July 08 From: Charlotte Member No.: 9,299 Region Association: None |
Ah the web is a wonderful thing....
(IMG:http://i184.photobucket.com/albums/x311/jhelgesen/75%20914/resistor.jpg) |
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| RRietman |
Dec 20 2009, 11:36 AM
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#44
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Member Group: Members Posts: 103 Joined: 13-December 09 From: Pacific Northwest USA Member No.: 11,124 Region Association: None
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John; With ign on, you should have 12v to the injector plug. If so, your resistors are good. The ECU signals the injectors by grounding that circuit. Good luck Randy |
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| jhelgesen |
Dec 20 2009, 04:13 PM
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#45
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Newbie Group: Members Posts: 42 Joined: 14-July 08 From: Charlotte Member No.: 9,299 Region Association: None |
(IMG:style_emoticons/default/piratenanner.gif) (IMG:style_emoticons/default/cheer.gif) (IMG:style_emoticons/default/aktion035.gif)
Picked up a handful of resistors at the shack this afternoon, had to assemble a few to get close to 2.7 ohms. Did some careful microscopic soldering, then plugged everything in. Hit the flap on the AFM and heard the fuel pump come on... (IMG:style_emoticons/default/smilie_pokal.gif) Turned the key to start and after a few seconds she came to life..... Thanks for all the help guys!!! (IMG:style_emoticons/default/beerchug.gif) (IMG:style_emoticons/default/beerchug.gif) Time for some tires and brake lines and she'll be on the road. Here is the offending resistor. (IMG:http://i184.photobucket.com/albums/x311/jhelgesen/75%20914/DSCN5235.jpg) and my temporary fix.. (IMG:http://i184.photobucket.com/albums/x311/jhelgesen/75%20914/DSCN5236.jpg) |
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| stepuptotheMike |
Dec 20 2009, 04:54 PM
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#46
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medium pimpin Group: Members Posts: 565 Joined: 4-September 06 From: Charlotte, NC Member No.: 6,769 Region Association: South East States |
Sweetness John! Good to hear you got it running again.
You know I've got an extra set of shoes over here if you want to get away from the steelies. Lots of Yokahama rubber on them.  Mike |
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| wrightee |
Dec 20 2009, 05:03 PM
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#47
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Member Group: Members Posts: 83 Joined: 18-November 09 From: Montclair, VA Member No.: 11,053 Region Association: MidAtlantic Region |
QUOTE(jhelgesen @ Dec 20 2009, 05:13 PM) Here is the offending resistor. and my temporary fix.. Where exactly is this resistor located? I also have a '75 1.8 liter that sounds like its doing the same thing - I can get it to fire, but it won't stay running...and tracking down electric issues is surely not something I'm good at. BTW, did you find this car in the VA Beach area? I saw one that looked similar that was advertised not to far back - very nice. |
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| jhelgesen |
Dec 20 2009, 05:14 PM
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#48
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Newbie Group: Members Posts: 42 Joined: 14-July 08 From: Charlotte Member No.: 9,299 Region Association: None |
The resistor is in the fuel pump relay, circuit from pin 20 of the ECU.
Car was in the Winston Salem area where we found her. |
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| type47 |
Dec 20 2009, 06:27 PM
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#49
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Viermeister Group: Members Posts: 4,254 Joined: 7-August 03 From: Vienna, VA Member No.: 994 Region Association: MidAtlantic Region |
Wow... fixing a resistor in a relay, (IMG:style_emoticons/default/pray.gif)
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| ClayPerrine |
Dec 20 2009, 09:10 PM
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#50
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Life's been good to me so far..... Group: Admin Posts: 16,318 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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You need to buy a replacement double relay, if only for piece of mind.
Congrats on getting it running. (IMG:style_emoticons/default/smilie_pokal.gif) |
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| davesprinkle |
Dec 20 2009, 10:03 PM
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#51
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Senior Member Group: Members Posts: 720 Joined: 13-October 04 From: Berkeley, CA Member No.: 2,943 Region Association: None
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Good job tracking down and fixing that problem. Excellent debug work and great perseverance. Congratulations.
I agree about replacing the relay. You should also consider replacing the resistor pack. That's the next thing to fail. Or maybe your rubber elbow will crack... |
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| computers4kids |
Dec 20 2009, 10:55 PM
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#52
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Love these little cars! Group: Members Posts: 2,443 Joined: 11-June 05 From: Port Townsend, WA Member No.: 4,253 Region Association: None |
and, believe it or not, the seal under the oil fill cap. This one is and often under noticed area for a vaccum leak.
Congrats on getting your car going. So your problem was the same as mine, a bad relay on the relay board. Hats off to you for fixing it...I just threw it aside and popped in another. |
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| jhelgesen |
Dec 21 2009, 03:20 AM
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#53
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Newbie Group: Members Posts: 42 Joined: 14-July 08 From: Charlotte Member No.: 9,299 Region Association: None |
I have a new relay on order, along with a handfull of tune up parts. I'll put the old relay on the trophey wall. Just wanted to nail down the fix.
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| ClayPerrine |
Dec 21 2009, 07:47 AM
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#54
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Life's been good to me so far..... Group: Admin Posts: 16,318 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(computers4kids @ Dec 20 2009, 10:55 PM) So your problem was the same as mine, a bad relay on the relay board. Hats off to you for fixing it...I just threw it aside and popped in another. Actually, the relays on the relay board are not necessary for the L-Jet system. We are talking about the double relay mounted to the battery tray support. Not as easy to get as the round relays on the relay board. |
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| computers4kids |
Dec 21 2009, 09:19 AM
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#55
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Love these little cars! Group: Members Posts: 2,443 Joined: 11-June 05 From: Port Townsend, WA Member No.: 4,253 Region Association: None |
QUOTE(ClayPerrine @ Dec 21 2009, 05:47 AM) QUOTE(computers4kids @ Dec 20 2009, 10:55 PM) So your problem was the same as mine, a bad relay on the relay board. Hats off to you for fixing it...I just threw it aside and popped in another. Actually, the relays on the relay board are not necessary for the L-Jet system. We are talking about the double relay mounted to the battery tray support. Not as easy to get as the round relays on the relay board. Clay you are correct...WOW, even more amazing fixing the double relay...just saw the picture. Yes...build a tropy stand for the repaired one once you replace it. (IMG:style_emoticons/default/biggrin.gif) |
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| jhelgesen |
Dec 24 2009, 07:20 PM
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#56
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Newbie Group: Members Posts: 42 Joined: 14-July 08 From: Charlotte Member No.: 9,299 Region Association: None |
This afternoon, we opened the garage door, started the yellow car and backed her out. After a little warming and seat adjusting, we set out around the block. Shifts were smooth but sloppy, new bushings are in order. Brakes are squishy, pads, soft lines, and fluid are going to be done this week.
Accelerating over 3500 got a miss or sluggishness. either a tune up needed, or a sticky distributor. Smell of oil was strong after the drive, will probably take a few more trips to burn off the 15 years of sitting. Not much more needed and she'll be ready.... |
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