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> Won't Fire up with L-jet, WTF!!! Update on Page 2 post 35
Black22
post Apr 15 2012, 03:47 PM
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I have a new 1911 with L-jet. It was formerly a 1.8L stock engine that ran good. Trying to do the break in cycle but have no fuel.

I have spark and air, but injectors won't fire.

I can however jump the relay and get the fuel pump to run. I can also move the flap manually at the AFM and that will also trigger the pump to run with all the stock wiring in place.

I tried all the tests at the manuals.type4.org website. It passes all the tests.
Only one test is questionable though.

** Measure the resistance between ECU plug terminal 20 and system ground at terminal 17. The reading should be 52-78 Ohms. Mine reads 5.9 Ohms. That would suggest the dual relay is bad, so I install a brand new relay and that one reads 6.9 Ohms. WTH?

What am I missing?
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timothy_nd28
post Apr 16 2012, 03:05 PM
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I believe you, I'm sure the dbl relay is good. I played this game last week, after the car sat for 15 years. I ended up soaking the 2 connectors that snap onto the double relay in a glass of coke cola. The reason I keep coming back to this, is due to what you said earlier. You had different resistance's when trying different relays.
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Black22   Won't Fire up with L-jet   Apr 15 2012, 03:47 PM
pilothyer   The L-Jet system doesn't pressurize the fuel l...   Apr 15 2012, 03:52 PM
Black22   Alright, I checked it out a little more after the ...   Apr 15 2012, 10:18 PM
falconfp2001   Alright, I checked it out a little more after the...   Apr 15 2012, 10:56 PM
falconfp2001   Alright, I checked it out a little more after th...   Apr 16 2012, 12:04 AM
CrashDown   Youve got waaaay more patience then me for that st...   Apr 15 2012, 10:59 PM
76-914   Youve got waaaay more patience then me for that s...   Apr 16 2012, 12:25 PM
Dave_Darling   No trigger points in L-jet. It goes off the ignit...   Apr 16 2012, 09:25 AM
Black22   No trigger points in L-jet. It goes off the igni...   Apr 16 2012, 11:00 AM
pt_700   while not l-jet, my 1.7 had the same issue - no si...   Apr 16 2012, 01:40 PM
Black22   I saw an ad in the classifieds for and ECU. Do th...   Apr 16 2012, 02:00 PM
pt_700   i'd search around as i seem to recal seeing a ...   Apr 16 2012, 03:19 PM
tim_nd   Mine didn't start up at first. Same issues yo...   Apr 16 2012, 02:11 PM
Black22   Mine didn't start up at first. Same issues y...   Apr 16 2012, 02:58 PM
tim_nd   I believe you, I'm sure the dbl relay is good....   Apr 16 2012, 03:05 PM
tim_nd   2 more silly questions. Is the yellow wire attach...   Apr 16 2012, 03:41 PM
Black22   2 more silly questions. Is the yellow wire attac...   Apr 16 2012, 03:50 PM
pilothyer   Have you checked the temp sensor? Do you have a w...   Apr 16 2012, 04:08 PM
Black22   Have you checked the temp sensor? Do you have a ...   Apr 16 2012, 04:54 PM
tim_nd   You have fuel pump action, while depressing the AF...   Apr 16 2012, 05:04 PM
Black22   You have fuel pump action, while depressing the A...   Apr 16 2012, 05:51 PM
pilothyer   You can determine if the pump is running with the ...   Apr 16 2012, 07:25 PM
Black22   You can determine if the pump is running with the...   Apr 16 2012, 08:09 PM
pilothyer   You can determine if the pump is running with th...   Apr 16 2012, 09:23 PM
tim_nd   [quote name='Black22' post='1667731' date='Apr 16...   Apr 16 2012, 09:46 PM
Black22   [quote name='Black22' post='1667731' date='Apr 1...   Apr 16 2012, 09:59 PM
Black22   Cool, good to know that. He has already stated ...   Apr 17 2012, 10:02 PM
Black22   [quote name='pilothyer' post='166768...   Apr 16 2012, 09:55 PM
tim_nd   Correct operation of the double relay would be zer...   Apr 16 2012, 08:24 PM
Black22   Thanks, I'll have to test it again. I have th...   Apr 16 2012, 08:30 PM
Black22   Sorry! My quote separating didn't go as pl...   Apr 16 2012, 09:56 PM
tim_nd   Good to hear that you have voltage at 88b. Now ch...   Apr 16 2012, 10:03 PM
Black22   Good to hear that you have voltage at 88b. Now c...   Apr 16 2012, 10:07 PM
tim_nd   Cool, that sounds great. Now check pins 14 to gnd...   Apr 17 2012, 10:16 PM
Black22   Alright....where to continue from? 1911 with L-je...   Apr 22 2012, 02:16 PM
914itis   Deleted   Apr 22 2012, 02:22 PM
dlee6204   L-Jet doesn't have trigger points   Apr 22 2012, 02:23 PM
dlee6204   You should only have 12V to 88c when the engine is...   Apr 22 2012, 02:26 PM
Black22   Doug, I don't have that ground wire in your la...   Apr 22 2012, 02:30 PM
dlee6204   Um, not sure :confused: Its been a while since I...   Apr 22 2012, 02:35 PM
dlee6204   I skimmed through the rest of this thread but if I...   Apr 22 2012, 02:39 PM
Black22   3 NOS injectors 1 that was previously on engine ru...   Apr 22 2012, 02:45 PM
pilothyer   3 NOS injectors 1 that was previously on engine r...   Apr 22 2012, 05:47 PM
Tom   Mike, How many wires do you have going into the...   Apr 22 2012, 02:56 PM
jim_hoyland   The dual relay has a brown ground wire. Usually at...   Apr 22 2012, 03:07 PM
Black22   The dual relay has a brown ground wire. Usually a...   Apr 22 2012, 03:11 PM
Black22   6 wires. One at each terminal listed on the diagra...   Apr 22 2012, 03:10 PM
Tom   I admit that I don't know L-jet. I see you ha...   Apr 22 2012, 03:27 PM
Black22   I admit that I don't know L-jet. I see you h...   Apr 22 2012, 03:37 PM
dlee6204   Doug, I don't have that ground wire in your l...   Apr 22 2012, 03:29 PM
Black22   [quote name='Black22' post='1671369' date='Apr 22...   Apr 22 2012, 03:38 PM
dlee6204   Well I'm out. It seems like you've alread...   Apr 22 2012, 04:05 PM
Black22   Well I'm out. It seems like you've alrea...   Apr 22 2012, 04:10 PM
jim_hoyland   IIRC you can circumvent the dual relay by groundin...   Apr 22 2012, 04:11 PM
kg6dxn   Need a L jet manual? https://docs.google.com/file/...   Apr 22 2012, 04:37 PM
pilothyer   Mike....I had this identical problem with my 75 1....   Apr 22 2012, 05:29 PM
tim_nd   Check the resistance on the ECU plug between pin 1...   Apr 22 2012, 06:07 PM
Valy   I would check 1. Does the injector get a pulse? i...   Apr 22 2012, 06:22 PM
Tom   Mike, Reading over your thread again, it sure s...   Apr 23 2012, 10:18 AM
ClayPerrine   My suggestion. There is a white wire in the L-Je...   Apr 23 2012, 10:30 AM
Black22   My suggestion. There is a white wire in the L-J...   Apr 23 2012, 11:56 AM
Cupomeat   Sorry you are having this much problem with L-Jet,...   Apr 23 2012, 11:54 AM
Tom   I can tell you are really frustrated! Been th...   Apr 23 2012, 12:25 PM
Black22   I can tell you are really frustrated! Been t...   Apr 23 2012, 01:19 PM
jim_hoyland   :popcorn: Any progress ?   Apr 23 2012, 05:18 PM
Black22   :popcorn: Any progress ? Didn't get to it...   Apr 23 2012, 07:46 PM
Qarl   Don't give up. You will get it... And in the ...   Apr 23 2012, 08:17 PM
Black22   Don't give up. You will get it... And in the...   Apr 23 2012, 08:57 PM
ClayPerrine   Get one of these : Noid Light Plug it into your...   Apr 24 2012, 02:21 PM
dlee6204   Bump :boing: Did you ever find the issue and g...   May 20 2012, 06:01 AM
Black22   Sorry to leave everyone in suspense. It is running...   May 20 2012, 09:03 AM
dlee6204   :Qarl: :trophy:   May 20 2012, 09:21 AM
Tom   So glad to hear this Mike. I have found many tim...   May 20 2012, 01:36 PM
Jaydebeers   Have a Double relay question. Trouble shot no curr...   Dec 7 2015, 10:58 AM
76-914   Have a Double relay question. Trouble shot no cur...   Dec 7 2015, 01:53 PM


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