Armystrongrob

I just bought this 94 F150 when I got out of the Army for $700 but it starts and drives fine but it dies as soon as the check engine light comes on then I gotta wait for like 5 min and it will start again I put it in Drive and hit the gas and it dies again and then I wait again then it can drive again for awhile then does it again I changed out the ICM ignition control module has a new coil in it but I just can’t figure it out I really need help I need this truck to get to school and take my kiddos to day care anyone else experienced this and fixed it let me know please.

BareBonesXL

There's a code associated with the light. You need to find out what it is. I don't know 1994 Fords, you might have to read some flashing lights on the PCM.

Here's a couple of articles about it.

https://www.blueovaltech.com/tech/eecivcodes.php

Actually, a parts store might be able to read a 1994's codes. Not sure.

Armystrongrob

Yea I tried taking it to autozone and all and they tell me it’s too old of a vehicle they don’t have the adapters to hook it up to the computer I see there’s a way you can get codes through the check engine light with a paper lip to the computer connection I don’t know

BareBonesXL

It's not that hard. Just counting light flashes. On my old Nissan I had to turn a screw with a screwdriver on the computer. Funny how fast the parts stores lose expertise though.

There's a few guys out there that know these old trucks. @Steve83 @Jbrew @white89gt @akdoggie @Rnlcomp ... there's more but I can't remember the screen names. Good luck. Find the computer and someone will now how to get the flashes counted.

Armystrongrob

THAnk you so much sir for the help

akdoggie

99% sure it will be the module on the side of the distributor. The Standard LX226 is a good replacement.

note: the pickup coil in the dist can also cause this. I'm still putting my money on the module.

Armystrongrob

Yes sir I replaced that the ICM ignition control Module but all it fixed was it made the sluggish start up go away

Steve83

Stop replacing parts. If you ever suspect an ignition system fault, follow the diagnostic procedure in this caption:


(phone app link)

This caption explains how to read codes:


(phone app link)

Do NOT buy or replace any parts simply because their names appear in the code definitions. If any false codes are delivered, look inside the EEC:


(phone app link)

If you plan to keep this truck, you need to buy a Haynes manual, READ IT cover-to-cover at least once, and then keep it in the truck along with some tools. Read this caption before buying a Haynes:


(phone app link)