Computer does not recognize new engine
Post Fiend
Joined: Jul 2008
Posts: 7,765
Likes: 7
From: home's where the heart is
son!!! *shaking head fervently*.......
go nice on this kid, fellas and gals......he is 18 and learning........
and he is right the dude that did all the swapping is my little brother and a total mismatch so far as genetics is concerned.......
WELCOME ABOARD, DUFFMAN~~~
Lead Driver
Joined: Aug 2006
Posts: 5,670
Likes: 13
From: Sand Lake, MI
Yes.. but there was mention of something burning up and this "he took mfi out and put efi in" so who knows what was actually changed on the truck in question.
We're 15 posts into this thread and the OP still hasn't described his problem. It seems the truck drives so I seriously doubt a major mismatch between computer and engine, but we won't really know until more info is supplied.
We're 15 posts into this thread and the OP still hasn't described his problem. It seems the truck drives so I seriously doubt a major mismatch between computer and engine, but we won't really know until more info is supplied.
Again yes, that depends on what the OP means by that or thinks he means by that "he took mfi out and put efi in". Again yea I assumed "mfi" was for "Multi-port Fuel Injection"
One is batch, one is sequential yea but both are MFI (Multi-port Fuel Injection) EFI systems, apposed to say throttle body injected / (Central Fuel Injection).
Fleet Mechanic
Joined: Mar 2005
Posts: 1,603
Likes: 1
From: St Louis
As far as I know the I-6 only came with MEFI, which is batched fired whether it was mass air or not is the question. SEFI wasnt available until the "catfish" f150's and superduties came to life. So there are only two ways to run the motor, carb or EFI. Beeping isnt a possibility for the computer as there isnt a speaker on the ECU. There is however a speaker for the door ajar, key in ignition beeper. So, please discribe what you do to get a beeping noise, if it was a computer problem you would have the check engine light lit not a beep.
Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
^^^^ What he said.
The ECM doesn't have a speaker. I promise you that's what's not beeping, and if someone is telling you it is, you should stop listening to them on all matters automotive.
You're going to have to take a step back, explain in detail what's happening and not why you think it is. Give us as much detailed and specific information as you can so that we can help you.
In other words, help us help you. So far you've just confused a bunch of people who are willing and able to help you.
The ECM doesn't have a speaker. I promise you that's what's not beeping, and if someone is telling you it is, you should stop listening to them on all matters automotive.
You're going to have to take a step back, explain in detail what's happening and not why you think it is. Give us as much detailed and specific information as you can so that we can help you.
In other words, help us help you. So far you've just confused a bunch of people who are willing and able to help you.
Thread Starter
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Freshman User
Joined: Dec 2008
Posts: 36
Likes: 0
From: Southern Illinois
[RESOLVED]
Ok...finally figured out what the noise is...most likely seatbelt warning...have to check wiring as soon as I can get to the truck...thanks to KT for that answer.
Ok...finally figured out what the noise is...most likely seatbelt warning...have to check wiring as soon as I can get to the truck...thanks to KT for that answer.
Last edited by Duffman1990; Dec 3, 2008 at 09:02 PM. Reason: Issue Resolved
Junior User
Joined: Mar 2005
Posts: 75
Likes: 0
From: Winnipeg, Manitoba
If it's not the seatbelt it could also be the airbag warning. A while back there was a problem with my airbag, and I got tired of the blinking light- so i had the bright idea of just pulling the bulb. Little did I know that when you do this there is this annoying beeping for 10 sec when you start the truck and 10 sec every half hour it is running. Needless to say I put the light back in and installed a new sensor so it was off forever.
But still very annoying beeping that is not normal. Assume it would happen if you remove or burn out any bulb for check engine, airbag, chargine etc
But still very annoying beeping that is not normal. Assume it would happen if you remove or burn out any bulb for check engine, airbag, chargine etc
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Der Postmeister
Joined: Sep 2006
Posts: 6,859
Likes: 560
From: Long Beach, Calimexiforia
RE: Uncle Half-***
in 9 replies! Anyway, what kinda new engine do you mean? Crate new, rebuilt new or just new to that truck. Also, what caught fire? The engine, the truck and if it was the truck, was Uncle Half-*** in it with some moron sitting next to him at the time?
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
No that's not true, the mass air OBD-1 motors use sequential injection, but you are correct both the SD and MAF versions are considered multiport fuel injection systems.
Der Postmeister
Joined: Sep 2006
Posts: 6,859
Likes: 560
From: Long Beach, Calimexiforia
3 ?'s/ 2 might merit an answer!
What's a "Catfish" F-150? In conversion of an 87' 5L w/AOD MAP to individual injector controlled MAF, wouldn't grabbing the ECU & wire harnesses off one of these OBD1's the simplest & best way to go or was their run so limited that it would be unlikly to find . Last and least important and I appoligize in advance. If D-man's uncle's friend was in fact, a total half-wit, would that also make him an Oxymoron?. I know, coming up with a half-wit answers has has never been a problem for me in the past, you'd think I'd know this one!
Thread Starter
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Freshman User
Joined: Dec 2008
Posts: 36
Likes: 0
From: Southern Illinois
The reason I have to drive the Dodge at the moment is because of tranny probs with the truck...but those are getting worked on as well
Fleet Mechanic
Joined: Mar 2005
Posts: 1,603
Likes: 1
From: St Louis
"Catfish" F150 is the 1997 to 2003/4 that if you ignored the cab the front end kind of looked fishy.
The Sequentially fired OBD 1 would have to have a harness that had individual connections for each injector on the MAF that can have a common ground wire. The Bank fired system had 4 or 3 injectors on one fire of the computer and the other 4 or 3 had injectors on the other wire all with a common ground or supply if it was hot and the wire back to the ECU was a switch for flow. So yes you would need a complete wiring harness for the sequential unless the MAF was also bank fired. It is confusing even to look at the wiring diagrams. but the maf of the cars would be one to consider.
The Sequentially fired OBD 1 would have to have a harness that had individual connections for each injector on the MAF that can have a common ground wire. The Bank fired system had 4 or 3 injectors on one fire of the computer and the other 4 or 3 had injectors on the other wire all with a common ground or supply if it was hot and the wire back to the ECU was a switch for flow. So yes you would need a complete wiring harness for the sequential unless the MAF was also bank fired. It is confusing even to look at the wiring diagrams. but the maf of the cars would be one to consider.