Duke & Chris: VIN / dash plate # que

[h-bot]

From: markarock_REMOVE_449262_THIS_@yahoo.com


More EFI set number information:

Dash
#3387 EFI Set #2838

Dash #0259 EFI Set
#0204

I also have a variety of pieces/parts with the
following numbers, but I can no longer match them to the
dash
numbers:

0294
0888
1255
1457
2231
2637
3025
3231
3441

Mark


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[h-bot]

From: doctorduke_REMOVE_951271_THIS_@yahoo.com


So on my early '76 the EFI set number leads the
dash number by 496 and on your late '76 it lags by
549. I wonder if we'll ever get the story behind
this?

My guess is that there were "leftover" '75 systems,
that got out of sequence or maybe there was a problem
and 500 or so sets were sent back to Bendix for
recalibration or some kind of rework.

I'm going to ask
John Hinckley if he remembers anything on this
subject.

Happy New Year!

Duke


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[h-bot]

From: rondeau3_REMOVE_486911_THIS_@yahoo.com


Guys, if the EFI # is the white sticker on the manifold, my dash # is 0539 and my EFI sticker # is 0335.

Al


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[h-bot]

From: cosvega76_REMOVE_987779_THIS_@yahoo.com


Duke and Chris:

Thanks for the info. I am
curious, though. I have #3412 and the tags on the EFI
match the dash plate. Could this be because it was such
a late car?

The car at the dealer is white
with a buckskin interior. The only option I noticed
was a rear window defogger. The car has been
repainted, but I am resonably sure it was white to begin
with. The odometer says 9300-odd miles, and looking at
the car, I think I would agree. It even has the
Pulse-Air intact with the original clamps! I may have to go
back with a flashlight to check out the undercarriage
more thoroughly.

Thanks again for the
help!

Chuck


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[h-bot]

From: doctorduke_REMOVE_416720_THIS_@yahoo.com


I don't know why the EFI set number lags the dash
number by 500 or so, but that's what I've observed. I
don't see how it could have narrowed later in
production although there could have been some installed out
of sequence. No one has ever thoroughly researched
the EFI number/VIN relattionship that I know of.
There was no official relationship between the dash
number and EFI number, VIN, or any other number.
Officially the dash plaque was just a trim item.

The
paint code on the body tag for white is 11. The
buckskin interior code is 64W for vinyl and 64D for Rhondo
cloth.

Duke


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[h-bot]

From: CSWRTH1_REMOVE_167334_THIS_@yahoo.com


I just checked a couple of cars and they were
only about 200 off. I have a few Cosworths so I will
see if I can find some sort of correlation. I have
added a column in the database for EFI #. If any of you
know what your EFI # is, email it to me at
cswrth1@aol.com and I will see if I can get enough info to make
some estimates. With the VINs, it seems that
approximately each dash # increases the VIN by about 30. It
shouldn't be that hard to find a correlation with these as
well. The EFI # is on the MAP sensor, computer, intake
manifold, fuel pressure regulator, and EFI harness. You may
have a couple of differences by now if one or more of
the items have been replaced. Later, Chris.


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[h-bot]

From: cosworth_twincams_REMOVE_828108_THIS_@yahoo.com


Hey Guy's

CV #3466 has EFI system #3515.

Later

Tim


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[h-bot]

From: buddyleejjc2_REMOVE_364739_THIS_@yahoo.com


CV 0803 had 0850 on the EFI. this probably sets
everyone's figures off. I'll check with the rest of my cars.
I also have the complete set of EFI for 0420, and
think this came off of car 0628. Car 1002 I do believe
came with 0805. If this is the case, then the early
cars had crazy configurations. I also want to say CV
0001 or 0005 had EFI set 0039, this throws everything
off, directly from the start.
Later,
John J.
Cowall


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[h-bot]

From: hammerdown7_REMOVE_875396_THIS_@yahoo.com


I don't think you'll find much correlation on the
EFI numbers except they increase with each later car.
The only way for the dash numbers to "catch up" would
be for several cars to have EFI systems with lower
numbers than dash numbers (to make up for the growing
disparity) or for some CV's to not have EFI and we know that
is not possible. I haven't heard of any cars with
the EFI number lower than the dash number. Bendix had
several pre-production cars in their test fleet and that
would account for the very early cars to be 30 or so
off sequence. Paul could probably shed more light on
this subject.
Dick


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[h-bot]

From: mmalone45069_REMOVE_563868_THIS_@yahoo.com


Chris,
0530 EFI# is 0587
3007 " " 3238


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[h-bot]

From: pd_wick_REMOVE_689334_THIS_@yahoo.com


I was told by a guy from Lordstown that the EFI
system (Intake, sensor package, ECU, and Harness) was
installed at the end of line repair area. He also stated if
there was any problem with engine run up, the entire
system was removed and all components returned to Bendix
Fuel Systems in Newport News, VA. So you could see how
things might get out of wack. At one point Phil Good had
copies of all the bench testing system sheets from the
factory (by EFI number). At one time I believe he even
was attempting to sell them to the CVOA Members
(Check old CVM's) I might hazard a guess they would have
a test date which would be somewhat earlier than
the Fisher Body build date code, If we were doing JIT
sequenceing. If not then any units sent back for rework would
have a later test date. Someone with interest could
track down Phil (last heard he was in the Atlanta, GA
area)and talk to him about the whereabouts of the test
sheets. Merry Christmas to all, Buy GM


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[h-bot]

From: doctorduke_REMOVE_846854_THIS_@yahoo.com


It sounds like at least 500 or so EFI sets must
have been sent back for rework or otherwise gotten out
of sequence during the '75 model run, as my very
early '76 has a dash number that lags the EFI set
number by 496.

Being as how it appears that the
EFI set number and dash number closed to being very
nearly the same in late '76, that would indicate that
some mid '76 production cars have EFI set numbers that
should lead the dash number by several hundred once
these systems were injected back into
production.

The other cause might be that surplus EFI sets for
'75 were sent back for rework to meet new '76 specs.
As far as I know, the EFI system configuration was
the same, but if the '76 model was certified with
slightly different EFI calibration, GM would have had to
legally rework any left over '75 sets to the new
spec.

Duke


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[h-bot]

From: pd_wick_REMOVE_555965_THIS_@yahoo.com


Duke, I thought we had discussed this before. I
was told there were 500 dash plaques lost in shipping
and the plant made a big jump and then when back to
the propoer sequence after the 500 were remade. This
should be evident by the dash number jumps during
production. Steve Larson should be able to predict from the
clubs database when the vin versus dash sequence
changed. This would tell you when the efi numbers got out
of sequence, sorry I didn't mention this before.
Have a Happy New Year, Buy GM Paul


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[h-bot]

From: doctorduke_REMOVE_501210_THIS_@yahoo.com


I vaguely recall some discussion about
temporarily lost dash plaques, but this doesn't account for
the discrepency between EFI set number and dash
number on my early '76 model. The dash number - 2110 -
is approximately "in sequence", but the EFI set
number - 2606 - is not.

Duke


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[h-bot]

From: CSWRTH1_REMOVE_625226_THIS_@yahoo.com


It appears that they misplaced dashes 0400-0499
and skipped them. They didn't find them or use them
until they finished the 1100's. So after 1199 they
started with 0400 and once they finished with 0499 they
continued on with 1200. That is what I get from reading the
sequences of the VIN's. The dash #'s should be off by an
extra hundred from 399 to 1200 but after 1200 they
should have corrected. I will hopefully know more soon
on the correlation. I am still collecting data on
the efi #'s. Later, Chris.
P.S. Hey Paul, for the
record I have 31 GM vehicles and nothing else and if you
hear anything about the new Cadillac XLR, please let
me know at cswrth1@aol.com


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