Mass Air Conversion-needing some help
Logistics Pro
Joined: Jul 2009
Posts: 3,635
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From: Lansdale, PA
That is it's base calibration.
Logistics Pro
Joined: Jul 2009
Posts: 3,635
Likes: 3
From: Lansdale, PA
So basically what you are saying is if I was to remove the chip to take the PCM back to stock tune and install the stock f150 MAF housing i have(55mm I think) instead of the 80 mm it would more or less calibrate to my 19# injectors and then I swap to the correct housing when I need the 24#. All I have to do is swap to the correct electronics to match my PCM. Am I following your thought correctly?
Removing the chip will revert the ecu back to stock preprogrammed state.
Then you can use stock maf and stock injectors.
There is no "stock" 24lb maf. They are all technically calibrated by the ecu programming. You can purchase a maf that has been altered to "match" certain injector size, to allow stock programming to be used with bigger injectors, but I don't like it. The different size mafs sample a certain amount of air, so the bigger the maf, the more air needs to go over sensor for smaller injectors. The bigger the injector, less air over the sensor. With this, aftermarket places tune the maf to injector size.
Anyway. As far as the new mass air meter having a different plug on the electronic piece, grind the pin out of the torx screw, or get a correct bit, and put you're good working electronic piece in the maf you want. They are all interchangeable and they all work the same. No need to cut your harness or alter it for the different plug.
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Senior User
Joined: Nov 2013
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How would that affect performance on a fairly stock(for now) motor? I'm not going too crazy with the build at most around 300 hp which from what I have read is the line to think about going from 19s to 24s and I think about 375-400 is where you start thinking about 30s. Right now I may be pushing 230 because all I will have is long tube headers and 2.25 duals
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Joined: Jun 2003
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From: Calhoun GA
Because the motor wont run with that AKC0, 19lb injectors and that 55mm air meter. It needs 30's and the 80mm air meter to run without a chip and that ECU. Now if you come across something like a HOG0 then that'll run with 19's and the smaller air meter.
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I understood that 19# injectors and the MAF meter I have wouldn't work. My question is how would using the correct parts for the AKC0 affect how the motor ran. I think I have an injector that has crapped out on me anyways and I can find some decent used/rebuilt ones on eBay in any size. Like I said earlier I do have some bigger performance mods planned in the near future and will probably need bigger injectors anyways I just wonder about how it would run before I do all my other mods
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Senior User
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Ok cool. The "new" harness already has it relocated and I got the air box off the truck I got the harness out of. I may take UNTAMNDs advice and swap the electronics to the case that fits my harness to save a few bucks rather than modify the harness. One other thing about my harness. I didn't get the part of the harness that went down under the truck to the oxygen sensor and the trans before the yard closed. Do I need to go back and get that or can I reuse the one that I already have. I didn't get a good look at it but it looked pretty much the same but I wasn't sure if it was wired differently or not
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Senior User
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Blurry94 also what is the part number for the 30# injectors that came in the kit as well. I'm gonna remove the chip instead on trying to retune it. I checked with a couple shops today and it was gonna run 200+ to get a tune put on the chip without even putting it on a dyno. I'll most likely never cross the power needed to go over the stock tune on that PCM and I will probably come out a lot cheaper in the long run to swap parts instead.
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Ok cool. I actually found a thread on NLOC where a guy bought one of the last kits they made and put up a copy of the directions and pics of all the parts and he had all the part numbers on there. That also brought up another question. Someone on there said the MAF meter was kit specific or it had to be calibrated to that particular PCM. Any truth to that or will any MAF meter with the same part # work? I wouldn't think so but I have had to swear at ford engineers over dumb things before.
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Joined: Jun 2003
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From: Calhoun GA
If it has the same number, then it should work without aftermarket tuning. I think that same air meter was used in a Lincoln LSC. Try doing a google search with that part # and see what comes up.
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I can find a ton of them used on eBay and it seemed to be the one used in all Ford and Lincoln v8s from about 96-99 but does the other part number code mean anything? The 4 digit one below the actual part number is what I am referring to. I didn't know if that was a specific calibration or just something similar to a serial number
Logistics Pro
Joined: Jul 2009
Posts: 3,635
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From: Lansdale, PA
Lincoln mark8 is the easiest place to get that mass air meter from
People don't realize it's 80mm stock like the sc cobra and lightning.
I thought the Lincoln lsc was 1998 (last year of the mark8) but the maf meter is the same back to 93 I believe. I'd just measure it before you buy it. The small end will be about 3 1/8" diameter. Be careful when just asking for a maf from an lsc. People may think the mark7 lsc which were a fox body chassis, and way lower hp.
People don't realize it's 80mm stock like the sc cobra and lightning.
I thought the Lincoln lsc was 1998 (last year of the mark8) but the maf meter is the same back to 93 I believe. I'd just measure it before you buy it. The small end will be about 3 1/8" diameter. Be careful when just asking for a maf from an lsc. People may think the mark7 lsc which were a fox body chassis, and way lower hp.