Awesome spreadsheet, Good Info
So that rules out that problem unless the engine is 58x ??
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He has an L33 It's the all aluminum 5.3
Sorry for the long delay, but here is an updated version with the latest information clarifying the Trailblazer ECM's that ScarabEpic22 has shared with us. The P12's were always 7x / 1x, the later V8's were E67's.
No worries... thanks for the update :cheers:
Not sure if this is still being updated, but just in case.
Under Vortec V6/V8 the 1996-2000 7.4/454 is referred to as the L19, when in fact it should be rpo L29, it uses the blackbox Vortec PCM 4x crank reluctor and 1x CMP sensor.
There is also an engine which uses the 16232148 and 16238212 LS1 PCM's. Using OS's 9354781T, 9369651T and 9384681T.
Here are 2 L21 equipped VIN's
1GDL7H1D0XJ514472
1GBMP37B2W3311219
The engine was used in 1998-2001 P30 vans, Kodiac/Workhorse
And use these specific parts Reluctor -12552480 crank sensor - 10456248. The reluctor is a 24x reluctor which actually fits under the front timing cover.
The L21 is an L29 with different cylinder head part numbers, CNP(Coil Near Plug) ignition and ETC(Electronic Throttle Control-ETC=DBW=Drive By Wire) whereas teh standard L29 Vortec 454 has cable throttle or DBC(Drive By Cable) and a single coil using a distributer. It was the 1st Chev BBC to get ETC and CNP. Instead of the distributer being used to give spark to each of 8 cylinders, the distributer is used to drive the oil pump and as a source for the 1x CMP signal. This engine is electronically an overgrown LS1. Its reluctor if sized for a smallblock Chev crank snout can be used as a basis for GEN 1/GEN 1E SBC CNP/ETC just as EFIConnections 24x reluctor does. Just need a 1996-2000 Vortec L31 350 front timing cover and the L21 CKP sensor.
Thread with some pics and some GM illustrations.
http://www.pacificp.com/forum/viewto...682df3d798118f
Great list
peace
Hog
Thanks for the info.
hog,
yes, thanks for the info and I will make the additions / corrections to the list.
No problem.
peace
Hog
Here is latest update with the information that was generously shared by hog.
Thanks guys for the info/effort :cheers:
What a great Chart!!! Thanks for sharing HOG
I don't see the LM4 and the L33 Aluminum 5.3L listed on the chart.
Looks like there is an 04 SSR for an LM4 OS and a 2005 GMC with L33 in the tunefile depot.
Minor update to include the SSR. Also tried to squeeze in a few more RPO codes and a quick description. As usual, if you see anything missing or any errors, please let us know.
Thanks,
I wanted to add to this tread, as there is some very good info in here.
The 2004-1007 Ion Redline and Cobalt SS used the P12 PCM and were 100% 58x. I am working on an E67 swap for my 2007 right now, and verified the reluctor wheel is 58x at a local machine shop where one of these motors is in for work. I had it in my hands, and it is not a 7x.
This was brought up to me a few weeks ago as well, unless the P10 is 58x as well (doubtful, was released in 02 and Ive seen 02-05 I6 reluctors, they're 7x) then it means at least the 06 P12 can run BOTH 7x and 58x setups. It is OS dependent at that point, the I4/I5s were either all 58x or the Atlas engines were 7x and the Cobalt/Redline ones are 58x. I know for a fact the 06 P12 can run an 02-05 I6 which is 7x using the TB/Voy OS.
From what i understand they run both. I do know the Cobalt reluctor wheel is clocked 30 degrees delayed and uses a different sensor than every other car. I want to do an E67 swap for the tuning ability, since the P12 is missing so many tables. The crank sensor part is the only thing holding me up. The E67 ran the 2.4 Cobalt SS cars, so besides the crank sensor part, it should work.
Im not sure where the 4cyl cars get their crank signal, but worst case you could fab a 58x reluctor wheel and put it on the crank dampener (if there's room). Mount it externally to the engine then you could use the E67. Not sure if that'd work for your setup, I havent been under the hood of a Cobalt SS.
Can this thread be cleaned up? I used the list from the first page and it is wrong as far as the e40 ecm is concerned. The correct list info is not fully correct until page 5 of this thread. Just maybe eliminate all the previous files until the last one.
Post #95 contains the most recent document/list.
PCM-Conversion-Information&p=188765-->post#95
Yah, maybe we should just update the document attached in post #1.
one pcm I`m not seeing is 12581565 would this be a suitable unit to retrofit into a 1989 K1500 with TPI, engine is staying Gen1 but I am having EFIconnections 24x reluctor installed. Wondering about gauges, 40T transfercase reluctor on the 700r4. A Silverado is in the wreckers now and I can grab the complete harness, coils and ecu. Perhaps there is a better choice- 411.... but this is here and now.
Ttt
Lots of good information here.
As a result of a quick read through the PDF referenced in the second post:
Missing from the abbreviation list: DOD, CKP (in header), CMP (in header), CAX
Missing from the engine RPO list: LK5, L52, LL8, LSJ, LD9, L61, LN2, LU3
References to I4/5/6, L4 and V6 for specific vehicles should be replaced with the RPO.
Which ECUs are MAP/TPS (are there any?) and which are MAF/MAP/TPS? Which ECUs can handle E85 (flex-fuel) with stock programming?
Should it be mentioned that all ECUs need engine temp and intake air temp sensors?
Should it be mentioned that DBC implementations need an IAC system (includes add IAC to the abbreviation list)?
DBW/DBC information is sparse, especially on the newer ECUs.
For those reading who must know what they mean:
DOD = Displacement on Demand, aka AFM
AFM = Active Fuel Management, aka DOD
IAC = Idle Air Control
CKP = symbol for Crank Position and/or its sensor
CMP = symbol for Cam Position and/or its sensor
CAX = calibration extension (if a user knows where an unpublished table resides at in the PCM's flash, they can make a definition to expose it)