Bad DOD/AFM connector...What to do??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67C10BUB · 12-27-2010, 11:20 PM

The AFM connector in the pics below is broken and I am wonering what the best course of action is. I am putting the motor in a 1967 C10 pickup and I had the ECM programmed by Speartech. I am getting a P3401, P3425, and P3441, so I am trying to decide if I should just have my ECM reflashed to eliminate the DOD/AFM, or if I should replace this connector and keep the DOD. If I do replace it, what is involved (is this a 2 piece plug that requires the valley cover to be removed)? If I don't keep it, is there any kind of plug to fill the hole in the valley cover? Please someone help. I posted this on LS1 Tech also, but I never get many responses on there.

68GMCCustom · 12-27-2010, 11:26 PM

I think you're going to need to post that kind of question at LS1tech.com or performancettrucks.net. I'd get rid of it personally (I did with my motors VVT)...but thats just me. You may be after the extra mpg?

67C10BUB · 12-27-2010, 11:37 PM

Quote:

Originally Posted by 68GMCCustom

I think you're going to need to post that kind of question at LS1tech.com or performancettrucks.net. I'd get rid of it personally (I did with my motors VVT)...but thats just me. You may be after the extra mpg?

I did post it on LS1 Tech, but I have never got a response to anything on that sight. If I do eliminate it, what can I plug that hole in the valley cover with?

tapeworm · 12-28-2010, 02:26 AM

I'm sure you could get the connector right from GM, They are not cheap, but could be easier & cheaper than a reflash

67C10BUB · 12-28-2010, 01:14 PM

Quote:

Originally Posted by tapeworm

I'm sure you could get the connector right from GM, They are not cheap, but could be easier & cheaper than a reflash

I was just hoping to not have to take my motor all apart, since I just got it installed. I believe I would have to take off the intake and valley cover to install it.

**Clyde65** · 12-28-2010, 05:51 PM

have you spoke to John @ Speartech about the problem, I'll bet he has a fix for you.

68GMCCustom · 12-28-2010, 07:42 PM

if you're going stock or near stock efi....I'll bet you wouldn't want to eliminate it.

67C10BUB · 12-29-2010, 01:36 AM

I wouldn't mind eliminating the DOD, but I just wonder if there are parts of that connector left inside the motor, so I think that I may have no choice but to pull the intake and valley cover. BUMMER!!!

67C10BUB · 12-29-2010, 01:37 AM

Quote:

Originally Posted by Clyde65

have you spoke to John @ Speartech about the problem, I'll bet he has a fix for you.

Maybe I'll try tomorrow, but the only options I see are to replace the connector or delete the DOD. Thanks for all of the responses. This is why I love this forum.

12-27-2010, 11:20 PM	#1
67C10BUB Registered User Join Date: Aug 2010 Location: Alta Loma, CA Posts: 610	Bad DOD/AFM connector...What to do??? The AFM connector in the pics below is broken and I am wonering what the best course of action is. I am putting the motor in a 1967 C10 pickup and I had the ECM programmed by Speartech. I am getting a P3401, P3425, and P3441, so I am trying to decide if I should just have my ECM reflashed to eliminate the DOD/AFM, or if I should replace this connector and keep the DOD. If I do replace it, what is involved (is this a 2 piece plug that requires the valley cover to be removed)? If I don't keep it, is there any kind of plug to fill the hole in the valley cover? Please someone help. I posted this on LS1 Tech also, but I never get many responses on there. Attached Images __________________ 67 5.3L Build

12-27-2010, 11:26 PM	#2
68GMCCustom Truck and auto performance nut Join Date: Feb 2007 Location: McKinney,Texas Posts: 3,848	Re: Bad DOD/AFM connector...What to do??? I think you're going to need to post that kind of question at LS1tech.com or performancettrucks.net. I'd get rid of it personally (I did with my motors VVT)...but thats just me. You may be after the extra mpg? __________________ Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken

12-28-2010, 02:26 AM	#4
tapeworm fan of "Butters" Stotch Join Date: Dec 2009 Location: St. Paul, MN Posts: 267	Re: Bad DOD/AFM connector...What to do??? I'm sure you could get the connector right from GM, They are not cheap, but could be easier & cheaper than a reflash __________________ 64 shortbox fleetside replacing rusty junk with more junk, and one day to become a real truck again

12-28-2010, 05:51 PM	#6
Clyde65 1965 Chevy C10, 2005 4.8L/4l60 Join Date: Aug 2004 Location: DFW Texas Posts: 8,546	Re: Bad DOD/AFM connector...What to do??? have you spoke to John @ Speartech about the problem, I'll bet he has a fix for you. __________________ Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684 *support our troops!*

12-28-2010, 07:42 PM	#7
68GMCCustom Truck and auto performance nut Join Date: Feb 2007 Location: McKinney,Texas Posts: 3,848	Re: Bad DOD/AFM connector...What to do??? if you're going stock or near stock efi....I'll bet you wouldn't want to eliminate it. __________________ Kurt - '68 GMC short step - NIB '09 LY6 6.0L crate motor w/mods, NIB '12 crate 4L85e w/billet 3k stall Circle D, 3.73 posi 12 bolt, DynaTech f-swap headers, 3/4 drop, handling mods, etc. - my toy '72 Chevy LWB C-10 Highlander - 350/350 ps/pb/tilt/ac - not original but close '06 Chevy TrailBlazerSS - LS2/4L70e - little black hot rod SUV - my DD '18 Kia Sorento - wife's econo-driver '95 Chevy S10 - reg cab shortbed, LS, 4.3, auto... my '68's powertrain and chassis build -links broken A surprise phase - carb to efi -links broken

12-29-2010, 01:36 AM	#8
67C10BUB Registered User Join Date: Aug 2010 Location: Alta Loma, CA Posts: 610	Re: Bad DOD/AFM connector...What to do??? I wouldn't mind eliminating the DOD, but I just wonder if there are parts of that connector left inside the motor, so I think that I may have no choice but to pull the intake and valley cover. BUMMER!!! __________________ 67 5.3L Build

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