 L-Jet Injectors Aren't Getting Ground, L-Jet Injectors |
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| nmkimosabe |
 Mar 21 2026, 09:44 AM
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#1
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Newbie  Group: Members Posts: 39 Joined: 16-March 25 From: Santa Fe, NM Member No.: 28,660 Region Association: Rocky Mountains  |
After a thorough investigation, it appears that the injectors are not getting ground to fire properly on my 1974 1.8L. Maybe it's an air flow sensor issue but not sure. All the other wiring seems to be okay. I would appreciate any thoughts from the knowledgeable folks on this forum. Thank you.
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| JeffBowlsby |
Mar 21 2026, 09:58 AM
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#2
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914 Wiring Harnesses & Beekeeper Group: Members Posts: 9,216 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None 
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Check the schematic for these circuits. LJet injectors do not ground directly, they go through the resistor pack (look for broken wires) and then to the double relay.
Attached thumbnail(s) 
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| nmkimosabe |
Mar 21 2026, 04:25 PM
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#3
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Newbie Group: Members Posts: 39 Joined: 16-March 25 From: Santa Fe, NM Member No.: 28,660 Region Association: Rocky Mountains |
QUOTE(JeffBowlsby @ Mar 21 2026, 08:58 AM)  Check the schematic for these circuits. LJet injectors do not ground directly, they go through the resistor pack (look for broken wires) and then to the double relay. @JeffBowlsby Thanks Jeff for taking the time to send the schematic and your thoughts. I've read many of your articles since I bought this car last Spring. I will print this out and review with my mechanic on Monday and get back to you. We've checked all the wiring, AFM plug and flap, vacuum lines, dual relay, dwell, coil but can't seem to get the injectors to ground and per your article they don't. It has normal fuel pressure and will start briefly at times but won't continue running. I will order a new resistor pack as mine might be the problem. Thanks Jeff. |
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Posts in this topic
nmkimosabe L-Jet Injectors Aren't Getting Ground Mar 21 2026, 09:44 AM
fiacra Jeff is the expert here so I'd start with what... Mar 21 2026, 12:15 PM nmkimosabe
Jeff is the expert here so I'd start with wha... Mar 21 2026, 04:19 PM |
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