 Need help starting a 75 1.8L L-Jet in NoVA, Injectors not spraying |
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| wrightee |
 Sep 2 2012, 12:15 PM
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#1
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Member  Group: Members Posts: 83 Joined: 18-November 09 From: Montclair, VA Member No.: 11,053 Region Association: MidAtlantic Region  |
I have a '75 1.8L L-Jet that has sat for a while. Its my parts car, but I'm trying to get it running now.
When I got it, the fellow told me the double relay was bad, so I replaced that. Fuel lines were also totally gummed at the tank, so those have been changed, tank cleaned and fuel filter replaced. I also had the fuel injectors tested and cleanded. I had also found a shredded "stray" wire, which turned out to be the engine temp sensor (under the engine sheet metal), which was replaced. The car will "fire" when I spray starting fluid in the intake. I don't have a pressure guage, but the pressure is sufficient to blow an improperly clamped fuel line off the fuel rail (I had an injector out, and some fuel must've sprayed into the hole, causing a "sputtering" near-start). I pulled the injectors to see if they were spraying, and they are not. When I manipulate the AFM flap, I can hear both the fuel pump as well as a "hissing" sound from the pressure regulator (but can not see any leaks). Troubleshooting these type issues is not my strength (IMG:style_emoticons/default/confused24.gif) so any help/advice on where I need to look next would be greatly appreciated. |
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| timothy_nd28 |
Sep 2 2012, 04:46 PM
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Advanced Member Group: Members Posts: 2,299 Joined: 25-September 07 From: IN Member No.: 8,154 Region Association: Upper MidWest 
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Excellent, I think we are homing into the problem area. With the key "on" check the common pin on the resistor pack. I believe it's the top middle pin. Leave the the resistor pack plugged in. The common pin will have one wire running back towards the ass end of the resistor pack. This pin should have 12vdc present, as this is the same wire of 88b on the relay connector you tested earlier.
If there is 12vdc present on the common pin on the resistor pack, go ahead and measure voltages on every other pin on that resistor pack connector (resistor pack still connected) |
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| wrightee |
Sep 2 2012, 05:15 PM
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#3
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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(tim_nd @ Sep 2 2012, 06:46 PM)  Excellent, I think we are homing into the problem area. With the key "on" check the common pin on the resistor pack. I believe it's the top middle pin. Leave the the resistor pack plugged in. The common pin will have one wire running back towards the ass end of the resistor pack. This pin should have 12vdc present, as this is the same wire of 88b on the relay connector you tested earlier. If there is 12vdc present on the common pin on the resistor pack, go ahead and measure voltages on every other pin on that resistor pack connector (resistor pack still connected) I'm getting 12vdc on all 5 pins. |
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Posts in this topic
wrightee Need help starting a 75 1.8L L-Jet in NoVA Sep 2 2012, 12:15 PM
dlee6204 Double check the connections on the resistor pack.... Sep 2 2012, 12:26 PM jsayre914 :agree:
I had 3 out of 4 wires break on the resi... Sep 2 2012, 12:36 PM
wrightee
:agree:
I had 3 out of 4 wires break on the res... Sep 2 2012, 12:42 PM wrightee
[quote name='jsayre914' post='1732799... Sep 2 2012, 01:01 PM jsayre914 you should be looking where the wires are solderd ... Sep 2 2012, 01:06 PM jsayre914 heres an example Sep 2 2012, 01:08 PM wrightee Wires are all connected - though I can see two tha... Sep 2 2012, 01:29 PM tim_nd Okay, reconnect everything that you had removed. ... Sep 2 2012, 01:55 PM wrightee Thanks Tim,
I did not hear any clicks after testi... Sep 2 2012, 02:52 PM Black22 I'll let the pro handle this...Tim_nd helped m... Sep 2 2012, 03:04 PM tim_nd Check pin 88z at the dual relay, you should have 1... Sep 2 2012, 03:45 PM wrightee
Check pin 88z at the dual relay, you should have ... Sep 2 2012, 04:12 PM Dave_Darling Do you have the white wire connected to the coil (... Sep 2 2012, 05:30 PM wrightee
Do you have the white wire connected to the coil ... Sep 2 2012, 05:50 PM tim_nd Okay, measure the voltages on the ECU connector at... Sep 2 2012, 05:35 PM wrightee
Okay, measure the voltages on the ECU connector a... Sep 2 2012, 06:28 PM tim_nd No prob,,all of those pins should have 12vdc. I... Sep 2 2012, 06:50 PM tim_nd
No prob,,all of those pins should have 12vdc. I... Sep 2 2012, 06:53 PM wrightee
No prob,,all of those pins should have 12vdc. I... Sep 2 2012, 07:00 PM wrightee
No prob,,all of those pins should have 12vdc. I... Sep 3 2012, 09:10 AM wrightee
[quote name='tim_nd' post='1733002' date='Sep 2 2... Sep 3 2012, 09:24 AM tim_nd Take off the 4 injector leads, and prepare 4 cups ... Sep 3 2012, 09:24 AM tim_nd Pin 33 and 32 looks like injector 1 and 4. So if ... Sep 3 2012, 09:33 AM tim_nd
Pin 33 and 32 looks like injector 1 and 4. So if... Sep 3 2012, 09:48 AM wrightee
Pin 33 and 32 looks like injector 1 and 4. So i... Sep 3 2012, 09:59 AM tim_nd Nevermind that green wire, this wire isn't cau... Sep 3 2012, 10:03 AM dlee6204
It looks like his pressure switch is already con... Sep 3 2012, 10:23 AM wrightee
It looks like his pressure switch is already co... Sep 3 2012, 11:07 AM tim_nd after installing this wiring harness, recheck thos... Sep 3 2012, 11:15 AM wrightee
after installing this wiring harness, recheck tho... Sep 3 2012, 12:40 PM tim_nd start it up, it should run Sep 3 2012, 12:55 PM wrightee
start it up, it should run
No luck. :headbang:... Sep 3 2012, 02:36 PM ClayPerrine Remove the distributor. Hook an ground wire from ... Sep 3 2012, 04:23 PM wrightee
Remove the distributor. Hook an ground wire from... Sep 3 2012, 04:40 PM ClayPerrine Just a wire between the distributor and the engine... Sep 3 2012, 05:21 PM tim_nd He stated in a PM that his fuel injector last chan... Sep 3 2012, 06:10 PM wrightee
He stated in a PM that his fuel injector last cha... Sep 11 2012, 06:01 PM ClayPerrine Find a 1980s vintage Datsun/Nissan. They use a Nip... Sep 11 2012, 09:21 PM wrightee
Find a 1980s vintage Datsun/Nissan. They use a Ni... Sep 23 2012, 05:43 AM tim_nd I had great luck with witchhunter.com in the past.... Sep 11 2012, 07:56 PM type47 :trophy: now only about a month to work on it to g... Sep 23 2012, 06:03 AM wrightee
:trophy: now only about a month to work on it to ... Sep 23 2012, 06:15 AM |
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