L-Jet troubles |
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L-Jet troubles |
jmargush |
Jul 14 2012, 07:18 PM
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#1
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Member Group: Members Posts: 460 Joined: 8-June 04 From: Goshen, IN Member No.: 2,176 |
I pulled the 1.8 out of my car because the compression was down to 80-85 on all 4 cylinders and I had a spaer engine which had compression reading at 120.
I swapped over all the injection and intake parts and harnesses after I had the running engine out of the car. *Only thing I didn't change was the Engine temp sensor I installed the good compression engine today and it doesn't start. I have fuel to the rails spark at the plugs But it won't fire. Is there something to check that would keep the injectors from pulsing? Thanks in advance for any possiblle solutions Jeff |
bigkensteele |
Jul 14 2012, 07:33 PM
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#2
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Major Member Group: Members Posts: 2,197 Joined: 30-August 04 From: Cincinnati, OH Member No.: 2,660 Region Association: South East States |
My guess is timing.
Pull the #1 plug and then rotate the crank until the timing mark lines up to the fan housing. Stick a plastic straw into the #1 cylinder to make sure you can feel the top of the piston. Remove the dizzy cap to make sure the rotor is pointing to TDC. Is the replacement motor a 1.8? I can't recall the specifics, but the timing marks are different on the 1.7 for sure, and perhaps the 2.0. There is a tech article on Pelican that will explain this. |
jmargush |
Jul 14 2012, 07:50 PM
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#3
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Member Group: Members Posts: 460 Joined: 8-June 04 From: Goshen, IN Member No.: 2,176 |
replacement is a 1.8
I djusted the valves while the engine was out so I think the timing is ok unless something else is off internally. and I don't know the history on the engine as it came with a parts car. I will check TDC again to make sure |
Bartlett 914 |
Jul 14 2012, 07:56 PM
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#4
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Advanced Member Group: Members Posts: 2,216 Joined: 30-August 05 From: South Elgin IL Member No.: 4,707 Region Association: Upper MidWest |
My guess is timing. Pull the #1 plug and then rotate the crank until the timing mark lines up to the fan housing. Stick a plastic straw into the #1 cylinder to make sure you can feel the top of the piston. Remove the dizzy cap to make sure the rotor is pointing to TDC. Is the replacement motor a 1.8? I can't recall the specifics, but the timing marks are different on the 1.7 for sure, and perhaps the 2.0. There is a tech article on Pelican that will explain this. (IMG:style_emoticons/default/agree.gif) Does it fire at all? Maybe 180 out |
dlee6204 |
Jul 14 2012, 08:00 PM
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#5
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Howdy Group: Members Posts: 2,162 Joined: 30-April 06 From: Burnsville, NC Member No.: 5,956 |
First I would check to see if your injectors are actually firing or not. Remove an injector from its holder and place it in a small jar. Crank the car to see if it squirts. If not, double check your connections at the resistor pack and dual relay. Make sure there are no loose/broken connections.
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messix |
Jul 14 2012, 08:08 PM
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#6
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AKA "CLUTCH KILLER"! Group: Members Posts: 6,995 Joined: 14-April 05 From: between shit kickers and pinky lifters/ puget sound wa.north of Seattle south of Canada Member No.: 3,931 Region Association: Pacific Northwest |
oil cap on?
dip stick in? those off with cause vacuum leak and no start |
Black22 |
Jul 14 2012, 08:13 PM
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#7
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Senior Member Group: Members Posts: 886 Joined: 1-November 07 From: Creswell, OR Member No.: 8,290 Region Association: Pacific Northwest |
FI Relay/connections? Resistor pack?
Trust me, fuel AT the rails means nothing...do you have fuel PRESSURE? Check fuel lines in engine compartment. Did you hook up the supply side to the rail and line that runs along the trunkside of the engine to the return line? It's easy to get them confused because the wrong way looks like a cleaner install. |
messix |
Jul 14 2012, 08:18 PM
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#8
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AKA "CLUTCH KILLER"! Group: Members Posts: 6,995 Joined: 14-April 05 From: between shit kickers and pinky lifters/ puget sound wa.north of Seattle south of Canada Member No.: 3,931 Region Association: Pacific Northwest |
dual relay over by the battery fires the injectors
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Als914 |
Jul 14 2012, 11:54 PM
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#9
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Lighting my way Group: Members Posts: 330 Joined: 1-January 06 From: Hemet,Ca. Member No.: 5,346 Region Association: Southern California |
I pulled the 1.8 out of my car because the compression was down to 80-85 on all 4 cylinders and I had a spaer engine which had compression reading at 120. I swapped over all the injection and intake parts and harnesses after I had the running engine out of the car. *Only thing I didn't change was the Engine temp sensor I installed the good compression engine today and it doesn't start. I have fuel to the rails spark at the plugs But it won't fire. Is there something to check that would keep the injectors from pulsing? Thanks in advance for any possiblle solutions Jeff Check this connector to the FI harness and pay attension to the red wire that it is connected when installed. My experience has been that it get pushed out of it's slot and doesn't make contact. |
Valy |
Jul 15 2012, 02:01 AM
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#10
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Senior Member Group: Members Posts: 1,676 Joined: 6-April 10 From: Sunnyvale, CA Member No.: 11,573 Region Association: Northern California |
assuming you have fuel running out the injectors and spark, you should check timing.
does it try to start? backfires? |
jmargush |
Jul 15 2012, 05:06 AM
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#11
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Member Group: Members Posts: 460 Joined: 8-June 04 From: Goshen, IN Member No.: 2,176 |
No firing at all, no back firing
trying to wrap my head around it being 180 out of time. If #1 is at TDC and the rotor is poitning to the mark on the distributor housing for TDC on #1 and valves are both closed (play in both when i adjusted the valves) Could it still be 180 out of time? I will check the harness connections today |
jmargush |
Jul 15 2012, 10:58 AM
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#12
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Member Group: Members Posts: 460 Joined: 8-June 04 From: Goshen, IN Member No.: 2,176 |
Injectors aren't pulsing
Am I correct in assuming that an incorrectly timed Distributor wouldn't cause this? Wires to the relay look ok |
McMark |
Jul 15 2012, 11:00 AM
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#13
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
Do you have a white wire from the FI harness connected to the coil on the negative side?
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rick 918-S |
Jul 15 2012, 11:16 AM
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#14
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Hey nice rack! -Celette Group: Members Posts: 20,463 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region |
Check the direction of the fuel flow. If you accidentally get the pressure regulator on the wrong side of the flow you will get a no start.
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jmargush |
Jul 15 2012, 11:29 AM
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#15
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Member Group: Members Posts: 460 Joined: 8-June 04 From: Goshen, IN Member No.: 2,176 |
Do you have a white wire from the FI harness connected to the coil on the negative side? no white wire to neg. onc oil. 2 blk wires that go to one terminal to positive side of coil and one blk wire that goes to neg. side of coil. Theese come from harness from the relay board. There is a single white wire from injection harness that I thougth went to the 3 spade ground terminal on case. Is this wrong? |
jmargush |
Jul 15 2012, 12:29 PM
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#16
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Member Group: Members Posts: 460 Joined: 8-June 04 From: Goshen, IN Member No.: 2,176 |
Got it to start
I ran the white wire from injec. harness to neg on coil but I also reran the harness in the engine compartment. I am wondering if there is a broken wire somewhere in the harness. Does anyone sell rebuilt L-jet harnesses? can the plugs that go to the inijectors be updated to a newer style that is easier to remoce? |
zonedoubt |
Jul 15 2012, 12:41 PM
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#17
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Canadian Member Group: Members Posts: 668 Joined: 14-May 03 From: Vancouver, BC Member No.: 696 Region Association: Canada |
Read the L-jet troubleshooting guide here: http://manuals.type4.org/ljet/
It helped me every time I had troubles. |
dlee6204 |
Jul 15 2012, 12:43 PM
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#18
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Howdy Group: Members Posts: 2,162 Joined: 30-April 06 From: Burnsville, NC Member No.: 5,956 |
QUOTE Does anyone sell rebuilt L-jet harnesses? I strongly recommend Jeff Bowlsby for new harnasses. His stuff is top notch. (IMG:style_emoticons/default/first.gif) http://bowlsby.net/914/WiringHarnesses/ |
Black22 |
Jul 15 2012, 03:14 PM
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#19
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Senior Member Group: Members Posts: 886 Joined: 1-November 07 From: Creswell, OR Member No.: 8,290 Region Association: Pacific Northwest |
QUOTE Does anyone sell rebuilt L-jet harnesses? I strongly recommend Jeff Bowlsby for new harnasses. His stuff is top notch. (IMG:style_emoticons/default/first.gif) http://bowlsby.net/914/WiringHarnesses/ (IMG:style_emoticons/default/agree.gif) (IMG:style_emoticons/default/agree.gif) (IMG:style_emoticons/default/agree.gif) (IMG:style_emoticons/default/agree.gif) Also check out his PDF'S. He has hand drawn schematics of all the wiring on the L-jet (including our harness). I always refer to it when reinstalling my harness. |
Black22 |
Jul 15 2012, 03:15 PM
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#20
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Senior Member Group: Members Posts: 886 Joined: 1-November 07 From: Creswell, OR Member No.: 8,290 Region Association: Pacific Northwest |
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