<VV> OBD, EFI, 30 MPG Corvettes, etc.

[Dave Keillor]

To be precise, OBD (on board diagnostics) is a diagnostic protocol, not
a control mechanism.  OBD-II is a standardized diagnostic protocol
whereby the ECU (engine control unit) provides standardized diagnostic
data to the OBD.  SAE J1979 defines the method for requesting various
diagnostic data and the PIDs (parameter identification numbers)
available from the ECU.  Not all manufacturers implement all PIDs and
some have proprietary PIDs.

An OBD-II scanner can be an invaluable diagnostic tool for the owner of
an OBD-II car.

Dave Keillor
-----Original Message-----
From: virtualvairs-bounces at corvair.org
[mailto:virtualvairs-bounces at corvair.org] On Behalf Of Charles Lee
Sent: Monday, August 16, 2010 1:53 PM
To: monza1965 at yahoo.com; virtualvairs at corvair.org; jvhroberts at aol.com
Subject: Re: <VV> OBD, EFI, 30 MPG Corvettes, etc.

Yes, and we can thank the gadgets that require OBD to manage for that
clean air, as well as for 30 MPG Corvettes and Mustangs (at least
according to their commercials ?)

Charlie






  ----- Original Message ----- 
  From: jvhroberts at aol.com 
  To: Chaz at ProperProper.com ; monza1965 at yahoo.com ;
virtualvairs at corvair.org 
  Sent: Monday, August 16, 2010 11:41 AM
  Subject: Re: <VV> OBD, EFI, etc.


  In all fairness, a turbocharged Corvair makes the same stench. It's
NOx emissions, which highly efficient engines or engines with high
combustion chamber temperatures are notorious for producing. The
catalyst can't deal with the insane levels of NOx under full throttle
from these engines, which, by the way, is NOT part of the EPA test
cycle. Thankfully! 

  Quite frankly, I do NOT miss my eyeballs burning from the unburned
fuel from being behind an overcarbed V8 American muscle car. Being
behind a modern Corvette, etc., is an easy breathing experience. And a
new Corvette also gets 30 MPG on a long cruise, making high performance
cars a relatively sin free experience as compared to 40 years ago or
more. 



  John Roberts




  -----Original Message-----
  From: Charles Lee <Chaz at ProperProper.com>
  To: PETER INMAN <monza1965 at yahoo.com>; virtual vairs
<virtualvairs at corvair.org>
  Sent: Mon, Aug 16, 2010 1:33 pm
  Subject: Re: <VV> OBD, EFI, etc.


When I walk in my neighborhood, it's usually fairly level so that
doesn't 

happen too often, but I wonder what makes that odor ?

Something is burning off center at those loads ?



Charlie



----- Original Message ----- 

From: "PETER INMAN" <monza1965 at yahoo.com>

To: "virtual vairs" <virtualvairs at corvair.org>

Sent: Monday, August 16, 2010 6:26 AM

Subject: <VV> OBD, EFI, etc.





> Love the smell of older cars compaired to the smell of the newer ones.


> Nothing

> worse than the stench from a new car blasting by you when climbing a
steep 

> long

> hill when they are under full throtle.

> Pete Inman

>

>

>

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