LE Jetronics: need help what to do next????

justhelping · 08-22-2007

I think this is the right section if not sorry mods. Any ways I have a 73 gt and am in the process of installing the le jetronics. I ran into a wall I cannot get the car to start.
1. checked fuel pressure ok
2. checked spark ok
3. made sure hot and ground are hooked up to le harness
After that i am lost it almost seems like the injectors aint firing. I bought the complete system and followed the instructions the best i could. If there is anyone out there that could help i would be grateful.
thanks jason

opelbits · 08-22-2007

Where is the power for your ecu coming from? Does it have a decent ground?
Do you have 12 volts (confirmed, not assumed) going to it?

Can you post a pic of the engine bay and the FI installed?

Do you have a good ground from the motor to the frame/battery?

justhelping · 08-23-2007

The 12 volt supply is coming direct from the battery it is just temp while I am trouble shooting. It is attached to what appears to be a 10 gauge red wire with a pig tail located about half way on the harness. I do have confirmed power to the harness. I do have on plug that is 3 white 1 black 1 black/red this is crewed but it looks like this _-_ The instructions I have said ignore this plug but the pics dont look the same. I have been looking for better instructions on the net but havent found any yet
I will double check the power just to eliminate that also do you know if the relay should click or anything. It does nothing at all I have power to it but makes no noise or movement( I took the cover off to see)
Thanks jason
pics coming soon

DennisGardiner · 08-23-2007

The 2.0L LE EFI system is easy to wire up. As simple as the 75 EFI.

Black/Red wire - Key Start on Starter (power only while cranking)

Green wire - Tach signal wire ( coil (-) wire & tachometer wire)
{this is what tells the computer 'when' to fire the injectors}

Black wire - Ignition ON (+12 volts when the key is turned ON)

White or Blue wire - +12 volts to the EFI fuel pump (computer/relay controlled)

Red wire - +12 volts to Battery (power all the time)

Brown wire - Ground (bolts to the bacl of the EFI intake manifold.

justhelping · 08-23-2007

thanks to the dennis and opelbits I got the car to run just need to clean everthing up I have wires running everywhere

Thanks again
jason

BlitzGT · 05-31-2008

If I might ask, where did you get the kit from?

08-22-2007	#1 (permalink)
justhelping Opeler Join Date: Aug 2007 Location: york pa Posts: 5	Unanswered: LE Jetronics: need help what to do next???? I think this is the right section if not sorry mods. Any ways I have a 73 gt and am in the process of installing the le jetronics. I ran into a wall I cannot get the car to start. 1. checked fuel pressure ok 2. checked spark ok 3. made sure hot and ground are hooked up to le harness After that i am lost it almost seems like the injectors aint firing. I bought the complete system and followed the instructions the best i could. If there is anyone out there that could help i would be grateful. thanks jason Last edited by tekenaar; 05-31-2008 at 08:14 PM.

08-22-2007	#2 (permalink)
opelbits Detritus Maximus Join Date: Jul 2002 Location: St. Louis MO Posts: 1,160 Provided Answers: 1	Where is the power for your ecu coming from? Does it have a decent ground? Do you have 12 volts (confirmed, not assumed) going to it? Can you post a pic of the engine bay and the FI installed? Do you have a good ground from the motor to the frame/battery? __________________ "No, it's not fiberglass." "No, the motor is not in the back." "No, your friend in high school did not 'peg' his speedometer."

08-23-2007	#4 (permalink)
DennisGardiner Kalifornia Kid Join Date: Jun 2002 Location: Soulsbyville, CA Posts: 357	The 2.0L LE EFI system is easy to wire up. As simple as the 75 EFI. Black/Red wire - Key Start on Starter (power only while cranking) Green wire - Tach signal wire ( coil (-) wire & tachometer wire) {this is what tells the computer 'when' to fire the injectors} Black wire - Ignition ON (+12 volts when the key is turned ON) White or Blue wire - +12 volts to the EFI fuel pump (computer/relay controlled) Red wire - +12 volts to Battery (power all the time) Brown wire - Ground (bolts to the bacl of the EFI intake manifold. __________________ Drifting: dorifuto sōkō, a motor sport where the driver intentionally oversteers, causing loss of traction in the rear wheels through turns, while preserving vehicle control.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

08-23-2007	#3 (permalink)
justhelping Opeler Join Date: Aug 2007 Location: york pa Posts: 5	The 12 volt supply is coming direct from the battery it is just temp while I am trouble shooting. It is attached to what appears to be a 10 gauge red wire with a pig tail located about half way on the harness. I do have confirmed power to the harness. I do have on plug that is 3 white 1 black 1 black/red this is crewed but it looks like this _-_ The instructions I have said ignore this plug but the pics dont look the same. I have been looking for better instructions on the net but havent found any yet I will double check the power just to eliminate that also do you know if the relay should click or anything. It does nothing at all I have power to it but makes no noise or movement( I took the cover off to see) Thanks jason pics coming soon

08-23-2007	#5 (permalink)
justhelping Opeler Join Date: Aug 2007 Location: york pa Posts: 5	thanks to the dennis and opelbits I got the car to run just need to clean everthing up I have wires running everywhere Thanks again jason

05-31-2008	#6 (permalink)
BlitzGT Opeler Join Date: May 2008 Location: Michigan Posts: 19	If I might ask, where did you get the kit from?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)