Ignition problem

[DavidST220]

Hello,

my name is David and I live in Spain. I have a grand marquis '84 with the 5.0l engine which does not start. Has all the electrical installation of the engine rebuilt, with joints and cut wires. I've gotten it to work everything, but still does not start. Anyone could spend the ignition wiring diagram?

Thank you very much.

[sly]

if all the electrical is working, verify it's getting fuel as well. If the fuel filter hasn't been changed in a few years (or never to your knowledge), change that first.

Here's the diagram I have... (click on them for a larger view)

[DavidST220]

Some doubt, do not always understand that the fusible "hot at all times".

The wires from the ECU that I have marked below right, are negative?

The solenoids that are within the large circle, where is located in the engine?

[gadget73]

the ECM switches those to ground in order to operate them, yes.

throttle kicker lives next to the throttle body, the control solenoid is on the valve cover in the cluster of 3
both fuel injectors are in the top of the throttle body
air diverter and air bypass solenoids on the passenger side fender
egr vent and egr pressure, one should be in the group of 3 solenoids on the valve cover, the other is on the fender next to the bypass and diverter solenoids. I think vent is on the valve cover, and pressure is on the fender but I may have that backwards.
canister purge solenoid lives in the cluster of solenoids on the valve cover

[Piece-it pete]

Do you have power to the coil in 'start'? When my 85 wouldn't start, it did have power in 'run', but not 'start'. It was the module. Just a thought.

Pete

[DavidST220]

Hello,

After removing the air filter, have taken the injection and have a carburetor.

What system ignition I can put to eliminate the ECU?? Magneto system??

Thanks You.

[gadget73]

Can you give me a picture of your distributor? Its entirely possible someone already converted it over. The twists of random wire holding the linkages to the carb do not fill me with confidence, and that rat's nest of wires also doesn't make me smile. It also looks like the ECM is not plugged in based on the big fat plug I see hanging in space. Handily, if it is a carb model, most of that can go away but you'll have to figure out the fuel system. Its also possible this was a Canadian car, in which case it came with a carb initially. US models had a throttle body fuel injection.

[DavidST220]

Hello,

Ok, tomorrow I give You a picture of distributor.

we have a program called autodata consisting of the car wiring diagrams, technical data, fault codes, etc.. Do you know of one for this car?

[sly]

I don't know if they made software for these... I think they still used books back then.

[gadget73]

Its called the Electrical Vacuum Troublshooting Manual, and its paper. Paper manuals are better anyway, no wasted electricity.

[1990LTD]

Mother of god

[sly]

that is what you call... work in progress. you have seen the pic of the battery/solenoid area of my 88 right? Once all the stuff is wired and mapped out... then it's time to neat it up.

we should have Thain take pics of his progress on my vic. That's a ton of wires to deal with. about double what this guy is dealing with.

[DavidST220]

Slymer, sorry but I don't understand. My english isn't good and I usually need a traductor.

I leave a picture of the distributor and the battery.

I would like install other ignition and distributor to remove the ECU, it's posible??

[sly]

I was responding to the previous post.

[gadget73]

OK so it looks like someone has installed an external carb-compatible fuel pump. That will be the item mounted on the inner fender with the hoses going to it. The distributor however is the fuel injection distributor. My best advice would be to find the ECM connector, and remove all of the wiring that comes from it. It should come out in one big lump. Once thats all gone, you'll need to find and install a carb compatible distributor. You can use either a stock Duraspark distributor, or there are GM HEI types available that fit a Ford engine which are somewhat easier to wire up. Hook that up, wire up the fuel pump, and you should be good to go. The ECM appears to be missing anyway, and without the fuel injector unit, it wouldn't really be doing much of anything useful. That distributor has no advance functions without the fuel injection, so it would not work well with a carb, though you could wire it up to operate if you really wanted to.