CRISIS! 1990 Bronco needs starting!
#16
01-04-2018, 12:27 AM
Join Date: May 2016
Location: California
Posts: 104
Likes: 0
Received 0 Likes
on
0 Posts
#18
01-04-2018, 01:07 AM
Join Date: May 2016
Location: California
Posts: 104
Likes: 0
Received 0 Likes
on
0 Posts
#19
01-04-2018, 01:20 AM
ok, just a note, if you are running the engine to fully warmed up; The G/Y wire powers up the O2 sensor heater circuit. So without the G/Y you might run rich at idle. You can hook it up to the other Yellow wire if you are working on the engine.
Not a big deal.
The EECM ignores the O2 sensor at cold start-up until the ECT- Engine Coolant Temperature sensor tells the EECM that the engine is warmed up (first 2 minutes or so).
Not a big deal.
The EECM ignores the O2 sensor at cold start-up until the ECT- Engine Coolant Temperature sensor tells the EECM that the engine is warmed up (first 2 minutes or so).
#21
01-04-2018, 02:53 AM
Join Date: May 2016
Location: California
Posts: 104
Likes: 0
Received 0 Likes
on
0 Posts
Welp... she fired right up. Then she started smellin real bad, rich like you said. THEN the Anti-Lock light came up! Now it won’t go away. And when I throttle it there’s a wee shriek. Ah I’ll sleep on it and try to figure it out tomorra. Thanks for your help this late evening sir! Mucho appreciated!
#23
01-04-2018, 10:20 AM
Not knowing what you are trying to accomplish;
With the exception of the Red/Light Blue, you can connect all the wires together if you want everything to work. Spread the load between the 2 Yellows;
Red/Light Blue – use only to energize the starter solenoid.
No need to connect this one for now;
Brown/Pink - same as R/LG in Start Position
FYI;
Yellows – 12 volts from Fusible Link
Red/Light Blue - Starter Solenoid - momentary contact
Red/Light Green - Power to Coil/TFI/EEC Relay
Black/Light Green – Wipers/Windows, Brake Anti-Lock etc.
Gray/White – A/C - Heater, etc.
Purple/White - Instrument Cluster
No need to connect this one for now;
Brown/Pink - same as R/LG in Start Position (not Brown/Pink)
With the exception of the Red/Light Blue, you can connect all the wires together if you want everything to work. Spread the load between the 2 Yellows;
Red/Light Blue – use only to energize the starter solenoid.
No need to connect this one for now;
Brown/Pink - same as R/LG in Start Position
FYI;
Yellows – 12 volts from Fusible Link
Red/Light Blue - Starter Solenoid - momentary contact
Red/Light Green - Power to Coil/TFI/EEC Relay
Black/Light Green – Wipers/Windows, Brake Anti-Lock etc.
Gray/White – A/C - Heater, etc.
Purple/White - Instrument Cluster
No need to connect this one for now;
Brown/Pink - same as R/LG in Start Position (not Brown/Pink)
#25
01-05-2018, 02:27 PM
Join Date: May 2016
Location: California
Posts: 104
Likes: 0
Received 0 Likes
on
0 Posts
Not knowing what you are trying to accomplish;
With the exception of the Red/Light Blue, you can connect all the wires together if you want everything to work. Spread the load between the 2 Yellows;
Red/Light Blue – use only to energize the starter solenoid.
No need to connect this one for now;
Black/Pink - same as R/LG in Start Position (not Brown/Pink)
FYI;
Yellows – 12 volts from Fusible Link
Red/Light Blue - Starter Solenoid - momentary contact
Red/Light Green - Power to Coil/TFI/EEC Relay
Black/Light Green – Wipers/Windows, Brake Anti-Lock etc.
Gray/White – A/C - Heater, etc.
Purple/White - Instrument Cluster
No need to connect this one for now;
Black/Pink - same as R/LG in Start Position (not Brown/Pink)
With the exception of the Red/Light Blue, you can connect all the wires together if you want everything to work. Spread the load between the 2 Yellows;
Red/Light Blue – use only to energize the starter solenoid.
No need to connect this one for now;
Black/Pink - same as R/LG in Start Position (not Brown/Pink)
FYI;
Yellows – 12 volts from Fusible Link
Red/Light Blue - Starter Solenoid - momentary contact
Red/Light Green - Power to Coil/TFI/EEC Relay
Black/Light Green – Wipers/Windows, Brake Anti-Lock etc.
Gray/White – A/C - Heater, etc.
Purple/White - Instrument Cluster
No need to connect this one for now;
Black/Pink - same as R/LG in Start Position (not Brown/Pink)
Hey again. Now the fuel pump won’t pressurize, can’t hear it do its thing. Truck won’t start. Hotwiring it won’t do the job. Know where I can buy a new harness as shown in the first post? All these are too short, cut and I need the wedge
#27
01-05-2018, 02:39 PM
#28
01-05-2018, 02:44 PM