L-Jet Injectors Aren't Getting Ground, L-Jet Injectors Options

[nmkimosabe]

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.

[nmkimosabe]

Here's an update on my 914 and unfortunately, I still can't get it to run. I had the car towed to my mechanic who spent 2 days on it and $600.00 later told me he couldn't figure it out and I wound up towing my car back home. I've done the following:
>Replaced the air flow meter and cleaned the plug
>Looked for broken wires throughout the engine bay at least 3 times
>Replaced the dual relay
>Replaced the resistor pack
>Made sure the plugs on the injectors were nice and tight
>Cleaned and checked the coil wires
>Cleaned the relay board but the 1.8 only has 1 relay in there
>Checked for fuel pressure --- at 30psi
Next step is to review all the pins in the ECU connector to hopefully find the fault. When I first put the new Air Flow Meter on the car yesterday it ran briefly, maybe 10 seconds and then died. I was hoping that I had found the fix but no luck. I would welcome any further advice, tips and prayers that would prove beneficial.

[Superhawk996]

. I had the car towed to my mechanic who spent 2 days on it and $600.00 later told me he couldn't figure it out and I wound up towing my car back home.

Automotive repair has become such a clown show.

I’m not an expert on L-jet, but you’ll find guys here that are. Review all the tech info you can find on Jeff’s site.

Per Jeff’s comment you need to be methodical. Keep notes. Don’t assume.

Learn to use a digital multimeter via you tube. You will need it to troubleshoot effectively and to verify wiring. As you’ve discovered visual inspections and parts swapping are not usually effective troubleshooting techniques.

Here to help as I can and I’m sure others will do so too.

You’ve been vague about what the actual symptoms are. Maybe start from scratch and describe exactly what it is or isn’t doing.

Do you know if the fuel pump is running properly once the engine starts? you mention it starting and running for maybe 10 seconds? I see the mention of 30 psi but not sure if that is staying 30 psi once the car starts or sputters?

Lay out exactly what is going on.

[nmkimosabe]

. I had the car towed to my mechanic who spent 2 days on it and $600.00 later told me he couldn't figure it out and I wound up towing my car back home.

Automotive repair has become such a clown show.

I’m not an expert on L-jet, but you’ll find guys here that are. Review all the tech info you can find on Jeff’s site.

Per Jeff’s comment you need to be methodical. Keep notes. Don’t assume.

Learn to use a digital multimeter via you tube. You will need it to troubleshoot effectively and to verify wiring. As you’ve discovered visual inspections and parts swapping are not usually effective troubleshooting techniques.

Here to help as I can and I’m sure others will do so too.

You’ve been vague about what the actual symptoms are. Maybe start from scratch and describe exactly what it is or isn’t doing.

Do you know if the fuel pump is running properly once the engine starts? you mention it starting and running for maybe 10 seconds? I see the mention of 30 psi but not sure if that is staying 30 psi once the car starts or sputters?

Lay out exactly what is going on.

Here's a recap of what is happening with my car:
It drove fine for a short drive on Saturday
Sunday, it started chugging, coughing and jerking as I drove it down my block and then it died. At times it will start and run for like 5-8 seconds and then dies. I believe it is getting spark, and fuel but just won't continue to run. Even though it tested at 30psi for fuel it feels like it's starving for fuel. The fuel pump is original, but it is getting fuel and the pump will be replaced as soon as I get it running and to a shop. Some members have mentioned the cold start valve and cylinder head sensor but those are areas I am not really familiar with. As you can tell most of this is new to me as the car has run great for the last year. I look forward to hearing from the forum members.