HOW TO SET TIMING ON 1993 BRONCO - 1993 Ford Bronco

Hight idle may be automatic choke.Low power mainly poor compresion from worn piston rings,valves timing,sparkplugs,bad oil.Could be a cloged carb also.Cheers

Will it try to start if you use starting fluid ?
Are the injectors getting power and a ground signal from the computer ?

Hi there:
You have several engine sizes there:

1993 Ford Bronco Full Size 4.9 liter L6 VIN "Z"





1993 Ford Bronco Full Size 5.0 liter V-8 VIN "N"





1993 Ford Bronco Full Size 5.8 liter V-8 VIN "H"






Hope this hesl; remember to rating this answer.

when using a timing light at what degree do I set distributor ?

Did you check the service manual for the proper way to set the timing? on some models you have to unplug a wire from the dist. to set the timing and then plug it back in after setting timing. Because the computer will change it if you don't do it correctly and the timing will be way off.

It's weak or are you just trying to squeeze out more? A little more timing can help.

This should help even though its not a Mustang. Same motor and spec.

with the shorting plug removed at the TFI ignition module the timing is set to 10 BTDC on both engines.

You need to disconnect the control wire from the computer so the distributor falls back to base timing. It should be a grey plug over by the blower box. Looks weird, just a wire going to a plug and back out; the plug is just a bridge to break the connection. Timing should be set at 10° BTDC.

Start by replacing the spark plugs, spark plug wires, distributor cap and rotor, the fuel filter, air filter and O2 sensor then reset the igntion timing to factory specs.