Running rough when warm

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May 4, 2013 | 03:28 PM

#16

jdan1993150

Senior User

Joined: May 2013

Posts: 102

Likes: 2

Ok I took some pics of my computer that I'll put below, look at the 3 shiny cans, look at the black and blue crap underneath them and how it looks like the board is black and burned, that's the problem and that's what you're looking for.

May 4, 2013 | 03:32 PM

#17

MEDIC2035

Freshman User

Joined: Apr 2013

Posts: 30

Likes: 0

From: eldorado illinois

SWEET I WILL TAKE A LOOK AT MY ECM LATER IM WORKING TODAY AND WONT HAVE TIME TO TAKE IT OUT TODAY BUT I WILL DEFF DO THIS THANK YOU AND ILL GET BACK TO YA AND LET YA NO WHAT I FIND OUT

May 4, 2013 | 08:35 PM

#18

MEDIC2035

Freshman User

Joined: Apr 2013

Posts: 30

Likes: 0

From: eldorado illinois

So I took mine out and inspected it It looks really good However my buddy had it replaced last year and it has not run right since this is cm is a remanded and I have a sneaky feeling its not for my truck there is no calibration code on it not even a part number so now I'm stuck guess I will have to call a dealer

May 4, 2013 | 08:52 PM

#19

MEDIC2035

Freshman User

Joined: Apr 2013

Posts: 30

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From: eldorado illinois

comparing your is eCM to mine they don't look the same is yours on a 1994 F 150 4.9 ???

May 5, 2013 | 06:53 AM

#20

jdan1993150

Senior User

Joined: May 2013

Posts: 102

Likes: 2

Mine is for a 1993 150 4.9 with a 5spd, so your 94 computer should look identical to this, if not I would suggest ordering a new computer from autocomputerexchange.com. If you give them your Vin number and mileage they will custom program you a computer for your truck for like $160

May 5, 2013 | 06:56 AM

#21

MEDIC2035

Freshman User

Joined: Apr 2013

Posts: 30

Likes: 0

From: eldorado illinois

Yeah I think that's what I'm going to have to do I'm thinking this EC M is from a newer truck

Feb 18, 2021 | 05:03 PM

#22

travisjones

New User

Joined: Feb 2021

Posts: 1

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94 4.9 manual

Im having almost identical issues with my 94 manual 4.9 f150.

ive looked into it but cant find any answers but whenever my truck idles rough after it warms up turning the heat off yes off makes it run worse. I had got the truck and using heat because its cold so when i was just messing around trying to hear the motor it got worse...and the 1st time truck died on me. I also unplugged the ac compressor because it was running with the heat...did i screw something up