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> '74 2.0 D-Jetronic FI question, What is my next step?
JMTaxter
post Jun 7 2023, 07:25 AM
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I am resurrecting a '74 2.0 with D-Jetronic FI with my mechanic buddy, and we have hit a block wall. The injectors won't fire, but we have spark, air, and fuel. We have installed a newly rebuilt MPS, new air pressure sensor, new head temp sensor, new injector seals, have good ground, replaced most fuel lines, blown out the remaining fuel lines, cleaned and blown out the injectors, reset fuel pressure to 35 psi, tested the injectors with 12 volts direct to the injectors to see if they activate (which they do), but they don't activate when we attempt to start. The engine does crank. Is my next step to test/repair/rebuild the ECU? Is there anything we are missing that we can do before sending out the ECU? I'm not the mechanic, so I hope the above makes sense. I figured the vast experience of the guys here might get us across the finish line to getting this car started. Thanks in advance for any advice you might have for us. Happy driving!
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JMTaxter   '74 2.0 D-Jetronic FI question   Jun 7 2023, 07:25 AM
GregAmy   This one is going to be hard to troubleshoot over ...   Jun 7 2023, 07:38 AM
jrtailoff1   This one is going to be hard to troubleshoot over...   Jun 7 2023, 09:03 AM
JMTaxter   This one is going to be hard to troubleshoot over...   Jun 7 2023, 09:31 AM
DRPHIL914   :wttc: :agree: Greg has some good info here, ...   Jun 7 2023, 07:54 AM
JeffBowlsby   The MPS is the air pressure sensor but you mention...   Jun 7 2023, 07:55 AM
JMTaxter   The MPS is the air pressure sensor but you mentio...   Jun 7 2023, 09:16 AM
BeatNavy   Did you check trigger points?   Jun 7 2023, 08:04 AM
JMTaxter   Did you check trigger points? Yes, checked em. ...   Jun 7 2023, 09:35 AM
Spoke   Did you check trigger points? :agree: The ...   Jun 7 2023, 11:33 AM
Lockwodo   Did you check trigger points? :agree: The...   Jun 8 2023, 07:16 AM
jrtailoff1   [quote name='Spoke' post='3082397' date='Jun 7 20...   Jun 9 2023, 10:02 AM
DRPHIL914   Congradulations! ---Well, see Post #3 a few ...   Jun 9 2023, 11:16 AM
ctc911ctc   I got nothin - removed what I wrote since it was s...   Jun 8 2023, 07:46 PM
jrtailoff1   I'm the poor soul that has to get this car run...   Jun 7 2023, 09:15 AM
DRPHIL914   @jftrailoff1 - check the wiring schematic and veri...   Jun 7 2023, 09:26 AM
JMTaxter   @jftrailoff1 - check the wiring schematic and ver...   Jun 7 2023, 09:33 AM
DRPHIL914   [quote name='DRPHIL914' post='3082373' date='Jun ...   Jun 7 2023, 10:33 AM
rhodyguy   Does the fuel pump run for about 5 seconds when th...   Jun 7 2023, 09:32 AM
JMTaxter   Does the fuel pump run for about 5 seconds when t...   Jun 7 2023, 09:38 AM
r_towle   https://members.rennlist.com/pbanders/DJetParts.ht...   Jun 7 2023, 10:50 AM
BeatNavy   The car will run without the TPS hooked up, so I...   Jun 8 2023, 11:25 AM
r_towle   Do read the link I posted above. It’s the djet b...   Jun 8 2023, 05:34 PM
mgphoto   You can find these at harbor freight. These will t...   Jun 8 2023, 05:47 PM
second wind   I just went through this....I believe it is the wi...   Jun 8 2023, 09:27 PM
GregAmy   The bane of these cars' existence. Glad you g...   Jun 9 2023, 10:08 AM


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