part #s
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first of all I want to see if it's a direct swap as far as hardware goes. That's the easy part.
Then I need to see if there's any differences with the software and how it reads sensors, if there's a difference in the sensors between the years, basically all inputs and outputs.
I honestly believe there's not that much of a difference other than maybe some emmissions standards. Who knows, maybe it's just a matter of a minor change or two in the 07 bcu to make it work with 06 standards. Or vice versa, maybe it's a simple swap of a sensor or two in the 06s to make it work with the 07 bcu.
I figure the way things are going 07s are going to have tuning before 06 and I'd like to have the option of swapping over if I please.
well I got the part #s. Years 05-08(thx to fr33k):
15247501 BCM 05
12599714 PCM 05
24239427 TCM 05
15910666 BCM 06 regular
15867054 BCM 06 up level
12599714 PCM 06
24239224 TCM 06
15906911 BCM 07 regular
15906912 BCM 07 up level
12597125 PCM 07
24239224 TCM 07
25856116 BCM 08
12612397 PCM 08
24234503 TCM 08
Then I need to see if there's any differences with the software and how it reads sensors, if there's a difference in the sensors between the years, basically all inputs and outputs.
I honestly believe there's not that much of a difference other than maybe some emmissions standards. Who knows, maybe it's just a matter of a minor change or two in the 07 bcu to make it work with 06 standards. Or vice versa, maybe it's a simple swap of a sensor or two in the 06s to make it work with the 07 bcu.
I figure the way things are going 07s are going to have tuning before 06 and I'd like to have the option of swapping over if I please.
well I got the part #s. Years 05-08(thx to fr33k):
15247501 BCM 05
12599714 PCM 05
24239427 TCM 05
15910666 BCM 06 regular
15867054 BCM 06 up level
12599714 PCM 06
24239224 TCM 06
15906911 BCM 07 regular
15906912 BCM 07 up level
12597125 PCM 07
24239224 TCM 07
25856116 BCM 08
12612397 PCM 08
24234503 TCM 08
Last edited by Novajoe; Aug 17, 2007 at 01:19 PM. Reason: Automerged Doublepost
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There was a post someplace about the diffrences in the 05-06 and the 07's and presumably the 08 2.2's
Most apparent that ive come accross.
07's have independant coil packs with diffrent valve cover to support them.
07's Diffrent Throttle body, the 05-06 had an 8 wire harness the 07's have only 6
my understanding the crank reluctor (spelling) ring on the crank has more pickup points.
Most apparent that ive come accross.
07's have independant coil packs with diffrent valve cover to support them.
07's Diffrent Throttle body, the 05-06 had an 8 wire harness the 07's have only 6
my understanding the crank reluctor (spelling) ring on the crank has more pickup points.
Thread Starter
Senior Member
Joined: 02-18-06
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From: Jacksonville AL
There was a post someplace about the diffrences in the 05-06 and the 07's and presumably the 08 2.2's
Most apparent that ive come accross.
07's have independant coil packs with diffrent valve cover to support them.
07's Diffrent Throttle body, the 05-06 had an 8 wire harness the 07's have only 6
my understanding the crank reluctor (spelling) ring on the crank has more pickup points.
Most apparent that ive come accross.
07's have independant coil packs with diffrent valve cover to support them.
07's Diffrent Throttle body, the 05-06 had an 8 wire harness the 07's have only 6
my understanding the crank reluctor (spelling) ring on the crank has more pickup points.
So you're throttle body has 8 wires? Mine does too.
I'm guessing by crank reluctor ring you mean the crank trigger wheel? I dunno if they're actually different or not but it would be pretty easy to swap for the different kind.
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The 05-06 2.2's have a coil bar, all 4 coils molded together.
the 07 has 4 independent with 4 individual wires.
The 07 has 6 wires to the TB and a Diffrent MAP sensor. When I swapped for the 2.4 manifold I tried to swap the 2.4 TB too, and the connectors are diffrent. Ive been working on the diagrams to figure out if i can splice the 6 pin to the 8 pin to use the 2.4 TB but thats how i found out the 2.2 and 2.4 for 05-06 had 8 pin connectors and they didnt change the 07 2.4s to the 6 pin only the 2.2s
The cranks trigger wheel is accually in the oil pan behind the the Flywheel mounting plate, its pressed the crank before final assembly. I dont think its removable. Least i cant find it as removable in the service manual
I think what youre trying to do is entirely possible, with
1. and entire underhood harness for an 07 auto or manual.
2. 07 pcm
3. 07 bcm
4. have or access to and GM Tech2 Programer.
The BCM and PCM are VIN matched to the car. I know this cause i had one BCM replaced, The BCM carries the Milage of the car. So when its replaced a tech has to call TIS (The Gm programming people) give the serial of the old bcm, upload the data and then download the new profile to the new BCM.
With the PCM you would have to do a crank and throttle position relearn as well as as update the software. You need a tech 2 for this as well.
Any time those are changed the data form the old Has to be uploaded then the new software downloaded, and the setups for both require the VIN be entered.
the 07 has 4 independent with 4 individual wires.
The 07 has 6 wires to the TB and a Diffrent MAP sensor. When I swapped for the 2.4 manifold I tried to swap the 2.4 TB too, and the connectors are diffrent. Ive been working on the diagrams to figure out if i can splice the 6 pin to the 8 pin to use the 2.4 TB but thats how i found out the 2.2 and 2.4 for 05-06 had 8 pin connectors and they didnt change the 07 2.4s to the 6 pin only the 2.2s
The cranks trigger wheel is accually in the oil pan behind the the Flywheel mounting plate, its pressed the crank before final assembly. I dont think its removable. Least i cant find it as removable in the service manual
I think what youre trying to do is entirely possible, with
1. and entire underhood harness for an 07 auto or manual.
2. 07 pcm
3. 07 bcm
4. have or access to and GM Tech2 Programer.
The BCM and PCM are VIN matched to the car. I know this cause i had one BCM replaced, The BCM carries the Milage of the car. So when its replaced a tech has to call TIS (The Gm programming people) give the serial of the old bcm, upload the data and then download the new profile to the new BCM.
With the PCM you would have to do a crank and throttle position relearn as well as as update the software. You need a tech 2 for this as well.
Any time those are changed the data form the old Has to be uploaded then the new software downloaded, and the setups for both require the VIN be entered.
Last edited by blktrax; Aug 17, 2007 at 02:00 PM. Reason: Automerged Doublepost
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From: Jacksonville AL
ok so it's the other way around. Yea I know what you're talking about with the coil bar, but I thought that was only in older cavaliers...
also usually gm puts their trigger wheels behind the harmonic balancer. it would suck if they went the way of dodge...
Even so, that should all have to do with inputs and outputs of the pcm, not the bcm. I remember fixing a problem when I bought my car wrecked(yes I bought my car wrecked). It didn't have power steering, air bags, data-link connector didn't work, rear defrost didn't work, no a/c controls, and no windsheild wipers. Also the info display wouldn't cycle through it's usual process, it just said service air bag and wouldn't let me reset the oil life.
The bcm was fried, but the car ran just fine. The pcm, tcm, and abs module were working just fine even though the bcm was not working. As soon as I swapped the bcm and reflashed it everything was working fine again.
It seems to me that the pcm and the tcm are more independent systems that send info to the bcm for the dtcs and the bcm itself is actually more used as an interface and to run subsidiary systems like the p/s, a/c controls, etc. If that's true then having differences in sensors and such shouldn't matter so much.
Looking at it like this, it looks more like swapping bcms would be just like swapping OSs on a computer. The only problem is some of the old software might not agree with the new software. That's what I'm worried about... That If I do manage to get an 07 bcm in the car that I'll lose all of the things I mentioned above in return for being able to tune.
also usually gm puts their trigger wheels behind the harmonic balancer. it would suck if they went the way of dodge...
Even so, that should all have to do with inputs and outputs of the pcm, not the bcm. I remember fixing a problem when I bought my car wrecked(yes I bought my car wrecked). It didn't have power steering, air bags, data-link connector didn't work, rear defrost didn't work, no a/c controls, and no windsheild wipers. Also the info display wouldn't cycle through it's usual process, it just said service air bag and wouldn't let me reset the oil life.
The bcm was fried, but the car ran just fine. The pcm, tcm, and abs module were working just fine even though the bcm was not working. As soon as I swapped the bcm and reflashed it everything was working fine again.
It seems to me that the pcm and the tcm are more independent systems that send info to the bcm for the dtcs and the bcm itself is actually more used as an interface and to run subsidiary systems like the p/s, a/c controls, etc. If that's true then having differences in sensors and such shouldn't matter so much.
Looking at it like this, it looks more like swapping bcms would be just like swapping OSs on a computer. The only problem is some of the old software might not agree with the new software. That's what I'm worried about... That If I do manage to get an 07 bcm in the car that I'll lose all of the things I mentioned above in return for being able to tune.
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From: .
I think its going to have to do with the pinouts mostly, The Crank pick up ring is behind the flywheel and the sensor is on the back of the block.
07 Lan system
Heres what i was looking for, there was some informaiton about the crank and such here.
https://www.cobaltss.net/forums/advanced-performance-modifications-130/stroke-not-stroke-70136/
In there some where
07 Lan system
Heres what i was looking for, there was some informaiton about the crank and such here.
https://www.cobaltss.net/forums/advanced-performance-modifications-130/stroke-not-stroke-70136/
In there some where
Last edited by blktrax; Aug 17, 2007 at 03:45 PM. Reason: Automerged Doublepost
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From: Jacksonville AL
well after calling around, looking up diagrams, and some help from fr33k, it would pretty much be cheaper to go with a full standalone system.
What might be more worth it is actually going with the 2.4 bcu if we actually never get tuning for our engines. Though it would require:
-bcm+pcm+tcm of the car you choose
-in certain cases, changing the ign system. Either way you'll have to change the module, but if you get a pre-07 bcm, you don't have to do the individual setup.
-crank sensor. From what I can tell, ALL pre-07 trigger wheels are set up the same so as long as you stick to 05 or 06 it shoud be pretty simple. At least that's what it looks like looking at different pics of the different crankshafts.
-map sensor
-wiring harness. I don't know if there's any way to just splice the correct terminals in instead of changing the whole harness. Doubt it though unless you want to run a complete circuit.
That SHOULD make your 2.2 run on a 2.4 bcm setup. From there you can take and tune with the tuning available.
I wouldn't be suprised if there's some details I missed. It would deff. be more reasonable to just wait for tuning for the 2.2, but it's nice to have options.
What might be more worth it is actually going with the 2.4 bcu if we actually never get tuning for our engines. Though it would require:
-bcm+pcm+tcm of the car you choose
-in certain cases, changing the ign system. Either way you'll have to change the module, but if you get a pre-07 bcm, you don't have to do the individual setup.
-crank sensor. From what I can tell, ALL pre-07 trigger wheels are set up the same so as long as you stick to 05 or 06 it shoud be pretty simple. At least that's what it looks like looking at different pics of the different crankshafts.
-map sensor
-wiring harness. I don't know if there's any way to just splice the correct terminals in instead of changing the whole harness. Doubt it though unless you want to run a complete circuit.
That SHOULD make your 2.2 run on a 2.4 bcm setup. From there you can take and tune with the tuning available.
I wouldn't be suprised if there's some details I missed. It would deff. be more reasonable to just wait for tuning for the 2.2, but it's nice to have options.
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From: Jacksonville AL
nothing as of right now. I've got a new house to pay for and starting a new business. I do plan to mod, but not for awhile. I'm just keeping my options open and doing some research so I know what's available when the time comes.
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