MAF conversion not working
Lead Driver
Joined: Sep 2002
Posts: 9,550
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From: North Texas
Originally posted by EPNCSU2006
That's weird that the A9L will work at all with an E4OD. I swapped an A9L in my truck but it's a 4 speed stick.
That's weird that the A9L will work at all with an E4OD. I swapped an A9L in my truck but it's a 4 speed stick.
I think it can be a few things:
1. Firing order is still off
2. Cam timing is off
3. Injector harness is miswired
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Junior User
Joined: May 2003
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From: bainbridge, ga
Originally posted by EPNCSU2006
That's weird that the A9L will work at all with an E4OD. I swapped an A9L in my truck but it's a 4 speed stick. Double check your timing. You could possibly need to get a maf custom calibrated for your truck. Does it run bad at certain rpm's or just in overdrive in general? I know you said you switched the injector wires, but just to make sure, you switched 3,5 and 4,7 correct? Double check all of the injector order as well. First time I connected my injector harness I got injectors 1 and 2 wiring swapped, and I had a really bad missfire - once I caught the problem it cured the miss.
That's weird that the A9L will work at all with an E4OD. I swapped an A9L in my truck but it's a 4 speed stick. Double check your timing. You could possibly need to get a maf custom calibrated for your truck. Does it run bad at certain rpm's or just in overdrive in general? I know you said you switched the injector wires, but just to make sure, you switched 3,5 and 4,7 correct? Double check all of the injector order as well. First time I connected my injector harness I got injectors 1 and 2 wiring swapped, and I had a really bad missfire - once I caught the problem it cured the miss.
The wires I changed were the plug wires on the distributer to the mustang order. The injector harness has the correct ends for the injectors and the EEC plugs that I inserted tothe EEC Harness.
firing order 1-5-4-2-6-3-7-8
cylinder 1 stays the same plug 58
cylinder 2 stays the same plug 59
cylinder 3 is inserted into plug 14
cylinder 4 is inserted into plug 42
cylinder 5 is inserted into plug 12
cylinder 6 is inserted into plug 15
cylinder 7 is inserted into plug 13
cylinder 8 is inserted into plug 52
firing order 1-3-7-2-6-5-4-8
1 is 58
2 is 59
3 is 12
4 is 13
5 is 14
6 is 15
7 is 42
8 is 52
the injectors are matched to the cylinders.
4 8
3 7
2 6
1 5
1 and 2 I dont even change.
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Junior User
Joined: May 2003
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From: bainbridge, ga
[QUOTE]Originally posted by EPNCSU2006
[B] Does it run bad at certain rpm's or just in overdrive in general? I know you said you switched the injector wires, but just to make sure, you switched 3,5 and 4,7 correct? Double check all of the injector order as well.
It runs fine at idle. When I put it in gear you can tell the dead skip. Hold the brake and give it gas it just pours out black smoke from running to rich. No power wont even turn over the tires.
[B] Does it run bad at certain rpm's or just in overdrive in general? I know you said you switched the injector wires, but just to make sure, you switched 3,5 and 4,7 correct? Double check all of the injector order as well.
It runs fine at idle. When I put it in gear you can tell the dead skip. Hold the brake and give it gas it just pours out black smoke from running to rich. No power wont even turn over the tires.
Senior User
Joined: Jan 2003
Posts: 383
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From: Newport News USA
K, let me clarify something: Are you having any problems at idle? Or is it only once you put it in drive? The E4OD, from my understanding, is an electronically controlled tranny. You NEED the right computer to control those shifts, but you said it ran fine til you converted to SEFI. Are you absolutely positive your cam is made for the 13726548 HO firing order? Looking at the Lunati cams website, the cam closest to the specs you gave is for the 15426378 firing order. If that's the cam you have, than converting to SEFI in the 13726548 firing order will REALLY throw things off.
If you are running the standard plug firing order, with the SEFI HO injector firing order, you'll be way off. You'll HAVE to do one of two things: Swap to a cam that uses the HO firing order, or rearrange your injector harness wiring to run SEFI in the standard firing order.
If you are running the standard plug firing order, with the SEFI HO injector firing order, you'll be way off. You'll HAVE to do one of two things: Swap to a cam that uses the HO firing order, or rearrange your injector harness wiring to run SEFI in the standard firing order.
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Junior User
Joined: May 2003
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From: bainbridge, ga
Originally posted by lexluthr69
K, let me clarify something: Are you having any problems at idle? Or is it only once you put it in drive? The E4OD, from my understanding, is an electronically controlled tranny. You NEED the right computer to control those shifts, but you said it ran fine til you converted to SEFI. Are you absolutely positive your cam is made for the 13726548 HO firing order? Looking at the Lunati cams website, the cam closest to the specs you gave is for the 15426378 firing order. If that's the cam you have, than converting to SEFI in the 13726548 firing order will REALLY throw things off.
If you are running the standard plug firing order, with the SEFI HO injector firing order, you'll be way off. You'll HAVE to do one of two things: Swap to a cam that uses the HO firing order, or rearrange your injector harness wiring to run SEFI in the standard firing order.
K, let me clarify something: Are you having any problems at idle? Or is it only once you put it in drive? The E4OD, from my understanding, is an electronically controlled tranny. You NEED the right computer to control those shifts, but you said it ran fine til you converted to SEFI. Are you absolutely positive your cam is made for the 13726548 HO firing order? Looking at the Lunati cams website, the cam closest to the specs you gave is for the 15426378 firing order. If that's the cam you have, than converting to SEFI in the 13726548 firing order will REALLY throw things off.
If you are running the standard plug firing order, with the SEFI HO injector firing order, you'll be way off. You'll HAVE to do one of two things: Swap to a cam that uses the HO firing order, or rearrange your injector harness wiring to run SEFI in the standard firing order.
My cam is for the 15426378 firing order. I have the injectors wired for that order. see above post where i have it listed.
I dont want to swap cams because that is an added big expense that I dont want to get into.
The way I did the injectors is I removed the colored wire from the plug. I installed the new harness wire in that place and then inserted the other EEC plug end into the harness at the computer to the correct pin location
Lead Driver
Joined: Nov 2002
Posts: 9,557
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From: Concord, NC
You said you switched the injector sequence to the truck firing order, but you switched the plug wires to the HO order? Like lexluthr said, make sure you know the firing order of your cam and make sure both injector wiring and plug wires are connected in the same order. From what you are saying, something's not lining up. I still don't know how the E4OD is shifting without electronic control.
Lead Driver
Joined: Sep 2002
Posts: 9,550
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From: North Texas
Originally posted by EPNCSU2006
You said you switched the injector sequence to the truck firing order, but you switched the plug wires to the HO order? Like lexluthr said, make sure you know the firing order of your cam and make sure both injector wiring and plug wires are connected in the same order. From what you are saying, something's not lining up. I still don't know how the E4OD is shifting without electronic control.
You said you switched the injector sequence to the truck firing order, but you switched the plug wires to the HO order? Like lexluthr said, make sure you know the firing order of your cam and make sure both injector wiring and plug wires are connected in the same order. From what you are saying, something's not lining up. I still don't know how the E4OD is shifting without electronic control.
Does the truck have a rear sway bar? If not I don't think it has the E4OD or the HD trailering package...can you count the pan bolts for me please?
Since the E4OD doesn't use a seperate computer to run, it must use the EEC-IV...and if you were running the A9L I don't beleive it can run; hence why I believe it has the AOD.
Either way...the cam timing or the firing order is off. Try swapping the firing order back to the 1-5-4-2-6-3-7-8 and see if that makes it any better. That should take no time to swap.
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Junior User
Joined: May 2003
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From: bainbridge, ga
http://www.pro-flow.com/tech%20info/t-truck.html
go to this site. at the bottom of the page is the diagram for the injector wiring for both firing orders.
go to this site. at the bottom of the page is the diagram for the injector wiring for both firing orders.
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Junior User
Joined: May 2003
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From: bainbridge, ga
Originally posted by Hit Man X
That's why I wanted all the cam specs. There is just a miscommunication between us, him, and the harness he had built.
Does the truck have a rear sway bar? If not I don't think it has the E4OD or the HD trailering package...can you count the pan bolts for me please?
Since the E4OD doesn't use a seperate computer to run, it must use the EEC-IV...and if you were running the A9L I don't beleive it can run; hence why I believe it has the AOD.
Either way...the cam timing or the firing order is off. Try swapping the firing order back to the 1-5-4-2-6-3-7-8 and see if that makes it any better. That should take no time to swap.
That's why I wanted all the cam specs. There is just a miscommunication between us, him, and the harness he had built.
Does the truck have a rear sway bar? If not I don't think it has the E4OD or the HD trailering package...can you count the pan bolts for me please?
Since the E4OD doesn't use a seperate computer to run, it must use the EEC-IV...and if you were running the A9L I don't beleive it can run; hence why I believe it has the AOD.
Either way...the cam timing or the firing order is off. Try swapping the firing order back to the 1-5-4-2-6-3-7-8 and see if that makes it any better. That should take no time to swap.
The firing order is 15426378. I changed it back after it did not work. I tried it both was with the injectors wired for the HO order and change mine to that no good. Changed back to 15 order and injectors too and still no good.
I have an E40D tranny I just spent 750 getting it rebuilt in January by a transmission shop and that is what I have. It has 20 pan bolts. My truck is a 4x4 flareside.
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Junior User
Joined: May 2003
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From: bainbridge, ga
I found the specs..........
°Dur @ .050 ///// Adv° Dura /////// Gr. LIft "
Int Exh ///// Int Exh ///// Int Exh
218 218 ///// 284 284 ///// .488 .488
lobe sep 110
°Dur @ .050 ///// Adv° Dura /////// Gr. LIft "
Int Exh ///// Int Exh ///// Int Exh
218 218 ///// 284 284 ///// .488 .488
lobe sep 110
Last edited by CGreene; Oct 25, 2003 at 08:51 PM.
Senior User
Joined: Jan 2003
Posts: 383
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From: Newport News USA
Ok, then the only thing I can think of, is that maybe your E4OD is just not liking the A9L comp. It's not SUPPOSED to like it, as it's not the right computer for it. But if you've got the inj. order and plug order correct, and your problem resides in the performance of the truck AFTER you take it out of PARK.... that's my guess!
Good Luck with it,
Luke
Good Luck with it,
Luke
Elder User
Joined: Sep 2002
Posts: 525
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here is alink t a page about maf conversion with e4od it has ford part numbers for the comptuers that work http://www.cyber-fish.com/fordeec/carb_EFI.doc
Senior User
Joined: Jan 2003
Posts: 383
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From: Newport News USA
Was that comp for the '95 MAF set up for the E4OD tranny? I don't know everything about the comps and their relationship with the trannies. All I know is that the E4OD seriously needs the comp to be set up for it.