Ecotec engine management summary w/ PinOuts
#1
I'm old school
Thread Starter
Ecotec engine management summary w/ PinOuts
The following is a list of the different computers used in different Ecotec installations. Pin out diagrams that I could find are lower in the thread.
Notes:
"PCM" Powertrain controller, which can operate an engine and transmission. Computer starts with a "P"
"ECM" Engine controller only. Computer starts with an "E"
"TCM" Transmission controller. Only in vehicles with an automatic transmission. The device is a slave to the ECM. In manual transmission car, the TCM is not installed.
J-bodies:
2002-2005 L61 equipped cars:
PCM: P11
Deltas:
2003-2006 L61 Ions
2005-2006 L61 Cobalts
ECM: E16A
TCM: T42
2007-current model L61 Cobalts, Ions, G5's
ECM: E37
TCM: T42
2004-2006 model LSJ Ions
2005-2007 model LSJ Cobalts
PCM: P12
Note: The P12 unit could in fact operate a transmission in this application. It is simply not used. However, somebody using HP Tuners on this computer will find variables for it on the 2005-06 cars. In 2007, they removed those variables.
2006-current model LE5 Cobalt, G5's
ECM: E67
TCM: T42
2006-current model LE5 Sky, Solstice
ECM: E67
TCM: ? (5L40E trans)
LNF Cars:
Sky Redline
ECM: E69
Credit to Witt and WopOnTour for some research notes.
All of the above computers are supported by HP Tuners except for the E16A. The E37 and E69 are in beta test right now, but not yet available in public release. The E16A is reported by HP Tuners as being scheduled for support in the first half of 2007. It is also reported to be supported by SCT Flash as part of the Garrett turbo package release in first quarter 2007.
Notes:
"PCM" Powertrain controller, which can operate an engine and transmission. Computer starts with a "P"
"ECM" Engine controller only. Computer starts with an "E"
"TCM" Transmission controller. Only in vehicles with an automatic transmission. The device is a slave to the ECM. In manual transmission car, the TCM is not installed.
J-bodies:
2002-2005 L61 equipped cars:
PCM: P11
Deltas:
2003-2006 L61 Ions
2005-2006 L61 Cobalts
ECM: E16A
TCM: T42
2007-current model L61 Cobalts, Ions, G5's
ECM: E37
TCM: T42
2004-2006 model LSJ Ions
2005-2007 model LSJ Cobalts
PCM: P12
Note: The P12 unit could in fact operate a transmission in this application. It is simply not used. However, somebody using HP Tuners on this computer will find variables for it on the 2005-06 cars. In 2007, they removed those variables.
2006-current model LE5 Cobalt, G5's
ECM: E67
TCM: T42
2006-current model LE5 Sky, Solstice
ECM: E67
TCM: ? (5L40E trans)
LNF Cars:
Sky Redline
ECM: E69
Credit to Witt and WopOnTour for some research notes.
All of the above computers are supported by HP Tuners except for the E16A. The E37 and E69 are in beta test right now, but not yet available in public release. The E16A is reported by HP Tuners as being scheduled for support in the first half of 2007. It is also reported to be supported by SCT Flash as part of the Garrett turbo package release in first quarter 2007.
Last edited by Halfcent; 08-11-2007 at 12:17 PM.
#2
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LE5's use an E67pcm. Similar to tuning an E38, but with VVT parameters. Speed density tuning is completely different in both ie no conventional VE table.
edit: LSJs use a p12 PCM.
I'll get more in a few minutes.
edit: LSJs use a p12 PCM.
I'll get more in a few minutes.
Last edited by Witt; 11-15-2006 at 05:52 PM.
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03 L61 ions are "believed" to use the same pcm as 04-06, but have a different OS i think, ill see if i can dig the thread up from the hpt forums on it.
here it is, it was one of your threads halfcent. http://www.hptuners.com/forum/showthread.php?t=6128
here it is, it was one of your threads halfcent. http://www.hptuners.com/forum/showthread.php?t=6128
#6
Premium Member
Originally Posted by Witt
The P12 note is redudant, its a PCM, its supposed to be able to operate a transmission. I'm assuming you mean TCM parameters.
I personally think it is somewhat interesting it's a PCM used on the SS/SC and IRL models that do NOT have an automatic transaxle as an option (Unlike the J-body for instance) and illuminating the possibility that perhaps someone might want to attempt to take advantage of those dormant controls at some time. (Should all the neccessary hardware exist of course) :wink:
Wop
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Originally Posted by WopOnTour
I disagree that the footnote should be considered "redundant"
I personally think it is somewhat interesting it's a PCM used on the SS/SC and IRL models that do NOT have an automatic transaxle as an option (Unlike the J-body for instance) and illuminating the possibility that perhaps someone might want to attempt to take advantage of those dormant controls at some time. (Should all the neccessary hardware exist of course) :wink:
Wop
I personally think it is somewhat interesting it's a PCM used on the SS/SC and IRL models that do NOT have an automatic transaxle as an option (Unlike the J-body for instance) and illuminating the possibility that perhaps someone might want to attempt to take advantage of those dormant controls at some time. (Should all the neccessary hardware exist of course) :wink:
Wop
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Originally Posted by Halfcent
Looks like all I need is the TCM's. Thanks for the help so far.
Do we know if HP Tuners supports the LNF E69?
Do we know if HP Tuners supports the LNF E69?
#10
Premium Member
TCM used in the 2003-2006 Cobalt/ION/Pursuit/G5 equipped with a 4T45E is known as a T42
(Still checking on 07)
Wop
(Still checking on 07)
Wop
Last edited by WopOnTour; 11-26-2006 at 04:33 PM.
#12
Premium Member
Originally Posted by Halfcent
I would like to expand the thread by asking which of the listed cars uses the GM CAN bus? I know not all of the Cobalts do.
A 2.2 or 2.4 Cobalt uses both GM LAN High Speed and Low Speed bus networks.
The 2.0 LSJ also has GM LAN however the P12 PCM is "primarily" Class 2 (J1850 VPW) for items such as service programming as well as diagnostics and and scan tool interface. But the LSJ PCM is still connected to the GM LAN network (High Speed) to provide certain multi-plexed feature functionality such as Theft Deterrant. Items such as radio and the IP Cluster on the Low Speed GM LAN network.
HTH
WopOnTour
PS>LNF Engine Managment is actually Bosch MED9.6
Here's a schmatic showing the HS GM LAN for the 2005 Cobalt
Last edited by WopOnTour; 05-16-2007 at 02:41 PM.
#13
I'm old school
Thread Starter
We now have Pin-Out diagrams for several model Ecotec ECM's. Follow the links:
02 Alero
02-05 Cavalier / Sunfire
03-? Ion
05-07 Cobalt LSJ
05-06 Cobalt L61
06 Solstice
07 Solstice
02 Alero
02-05 Cavalier / Sunfire
03-? Ion
05-07 Cobalt LSJ
05-06 Cobalt L61
06 Solstice
07 Solstice
Last edited by Halfcent; 04-04-2007 at 12:23 PM.
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I just wanted to point out that your listing certain modules as "PCM" and "ECU" does not match up to what that above document says. IE: it calls the 2005 L61 computer a PCM while you call it a ECM in your first post. What is correct?
#17
WTF does all this exactly mean?? lol
2002-2005 L61 equipped cars:
PCM: P11
this is me. i have a 2.2....hptuners doesnt support this, so whats the deal?
2002-2005 L61 equipped cars:
PCM: P11
this is me. i have a 2.2....hptuners doesnt support this, so whats the deal?
Last edited by ransd2054r; 05-07-2007 at 07:40 PM. Reason: Automerged Doublepost
#18
I'm old school
Thread Starter
It means that if you have an Ecotec powered J-body car, which is a Cavalier or Sunfire, your engine is managed by model P11 PCM computer. And yes, HP Tuners DOES support that car.
#22
Well, I haven't been on here in a while. Are the 2007 L61 cars supported by HP Tuners yet? the first post says it was last edited on 8/11/2007 and it still says the E37 is in beta. Is this still the case? I may be trading my 2006 in for a 2007 or 2008 model and the tuning is an important consideration for me. I've been screwed out of tuning on this Cobalt and my previous 2003 Cavalier. I don't want to deal with that again.
#23
I'm old school
Thread Starter
No, it is still not supported. You can always check the HPT web site directly to view the current version and supported vehicle list.
We are actually more hopeful about SCT supporting the car. They have a tune for the Garrett turbo kit, but have not included the support in their tuner software. That is our best hope.
We are actually more hopeful about SCT supporting the car. They have a tune for the Garrett turbo kit, but have not included the support in their tuner software. That is our best hope.
#24
Thanks for the information. You've probably answered that question a hundred times and I appreciate it. Is SCT also going to have support for the E16 in my 2006? I'm gonna look it up now.
#25
The ball is in Garrett's court. They paid SCT to crack the E16, so they get to hold onto it. SCT can't release anything without them giving the thumbs up.