electrical problems

[bravekozak]

I installed an 89 harness in my 93.
When I turn the key to run, the arrow for the left rear turn signal comes on and so does the amber light in the tail light. It does not blink. The turn signal is not on. The door buzzers work. Brake lights and headlights work. Any ideas why that amber light comes on and stays on?

[WmWatt]

Tried the 4-way flashers yet? (Ford "hazard")

The Haynes manual has the one wiring diagram for "1993 and earlier" so it should work.
The left side power (front and back) is "grn/wht", right side is "grn/blk". Power from the flasher to both at the turn switch and hazard switch is "grn/red". If I understood all the electrical symbols I might be of more help.

[doylerl]

The '89 wiring harness is VERY different than 90+ according to some of the engine swap posts. If that part of the wiring is different too, it wouldn't surprise me any.

[AlaskaFestivaGuy]

From everything I've read on this site, I thought the 88/89 (carb'd) harness was different from 90-93 (FI'd). My ToDo list includes upgrading my pristine silver 88LX to FI, for which I already have a body-damaged 93 donor, which I understand will also have to donate its fuel tank.

Should I expect problems like this with lighting? I thougth the harness differences were related to FI vs. carb, and the in-tank fuel pump.

[bravekozak]

don't worry

I am troubleshooting with the schematic.
The only reason I installed my 89 harness was because I was installing a carb in a 93. The problem is that now I have to add wiring because I require an electric fuel pump, wiring for rear hatch popper, fuel door popper, lighted vanity visors, cruise control, power door locks and power antenna. You know. The usual.

I am going to have to go back under my dash and check the connectors. I will be cutting open some of the taped wire bundles and replacing them with flexible electrical automotive conduit. Then, I can identify which wires to discard or reuse for another purpose.

Right now my four way flashers, radio, rear wiper, and starter motor don't work. I will keep you posted as to the exact reasons. Fuses are good. Power goes to the fuse from the ignition switch. I will have to locate a connector that is 10 pins wide.

[bravekozak]

found it

I found the large unplugged blue connector squished in between the ECU and the duct. Pulled out the ECU. I should have no use for it. Will continue to test. Dash lights come on. dimmer works for dash. Is the radio supposed to also dim? It does not right now. Power mirror works on power window harness. Starter will not crank.

[bravekozak]

rear wiper

I disconnected the rear wiper connector to see why it wasn't working. Power was getting to the terminal. Removed the wiper motor and took off the armature housing. Very disappointed. Although there isn't a speck of dirt or rust on the wiper motor housing, everything was fried inside. Contacts burned, magnets slid out becuse the heat must have melted the adhesive. Now I have to transplant the Escort gear to another motor.

Always remember, looks can be decieving.

[bravekozak]

flasher

Where is the flasher located? Under the dash beside the buzzer or between the battery and the left headlight? What color is it? Is it green?

[bravekozak]

found the problem

I finally found the reason why the starter wouldn't work. The blue/black wire in the 89 carb wiring harness had broken at the connector in behind the battery. Nice place to put a connector. I will take the battery out and release the terminals from out of the black connector. I will then carefully try to pry open open the crimp and reuse the terminal. Wish me luck.

[bravekozak]

last problem

I still have a problem. I'm not getting power to the passenger fromt corner light or turn signal. The flasher relay clicks very fast when I signal a right turn. Has anyone else ever had the same problem?

[CharlieZ]

Pulled out the ECU. I should have no use for it. Will continue to test.

How is your ignition advance managed when you convert an EFI engine to Carb? Do you install the Carb'd model distributor?

Thanks

[bravekozak]

Yes, I have a carb distributor.

[bravekozak]

new problem

I replaced my backup switch and can't locate the connector to the backup light switch? Could someone trace the wire from the switch backward and tell me which part of the harness the wires come out of?

[bravekozak]

Another day, another problem!

The EFE heater relay on and 89 carb is a typical H300 four terminal relay used for a lot of different purposes on Mazda cars. Does anyone with electrical knowledge know if I can use this relay with the existing wiring for my Toyota idle up solenoid located on the firewall of my engine bay? I want this to energize when the A/C is turned on or the power steering is cranked. The goal is to speed up the idle a bit so the engine doesn't stall when I'm not moving.

The wiring for the EFE heater looks to be about 18 ga.
I hope it won't damage the small idle up solenoid.
I'm going to mount my idleup valve with the air chamber facing up.
It has already fallen off once facing down.
I like this one because it's adjustable, not like the ones on our 89 Festivas.

[Movin]

Make sure each light has grounds.