EFI control

Roy spectric at yahoo.com
Thu Feb 8 07:58:02 GMT 2001 

Hi there 

With reference to non OEM ECU's. I have worked in the
automotive electrical / electronic field for many
years and I must say that in many cases the
aftermarket ECU is far better in quality than the OEM
module, take a look at Motec.  Of the OEM's I would
say Bosch are amongst the best all round and the Ford
EEC the worst. 

                   Roy

--- DIY_EFI Digest <DIY_EFI-Digest-Owner at diy-efi.org>
wrote:
> 
> DIY_EFI Digest       Wednesday, February 7 2001     
>  Volume 05 : Number 482
> 
> 
> 
> In this issue:
> 
> 	RE: EFI control
> 	RE: EFI control
> 	RE: EFI control
> 	Re: EFI control
> 	RE: EFI control
> 	RE: EFI control
> 	Re: EFI control
> 	Re: EFI control
> 	Re: EFI control
> 	RE: EFI control
> 	Re: EFI control
> 	RE: EFI control
> 	RE: EFI control
> 
> See the end of the digest for information on
> subscribing to the 
> DIY_EFI or DIY_EFI-Digest mailing lists.
> 
>
----------------------------------------------------------------------
> 
> Date: Wed, 7 Feb 2001 13:40:59 -0500 
> From: "Shirley, Mark R" <MarkRShirley at eaton.com>
> Subject: RE: EFI control
> 
> I agree fully with this.  The typical aftermarket
> box just doesn't cut it.
> Function maybe at the track, but not in the usual
> daily environment.
> 
> - -----Original Message-----
> From: Eric Bryant [mailto:BRYANTE at ghsp.com]
> Sent: Wednesday, February 07, 2001 1:13 PM
> To: 'diy_efi at diy-efi.org'
> Subject: RE: EFI control
> 
> 
> 
> Well, I'm an automotive electrical engineer, and I
> do understand why the
> requirements have evolved to the point where they're
> at right now.  If
> you're only driving your car on the strip and it's
> being operated from temps
> ranging from, oh, 40 F to 100 F, and only on dry
> days, then I can see where
> you don't need the level of engineering that an OEM
> part provides.
> 
> However, if your car is a daily driver, and you want
> a module that will last
> many years and work in all sessons, and all
> conditions, then you really,
> really do need the level of engineering that the
> OEMs perform.  Sorry, but
> if I'm dropping $3000 on a aftermarket ECU, then I
> want something that's
> going to work within the stated operating
> parameters.  If the vendor claims
> that the part is good for fair-weather use only and
> shouldn't be used on a
> daily driver, fine.  If the vendor is claiming that
> I can bolt his XYZ ECU
> into my car for use as a daily driver, then he had
> better comprehend the
> environment and its effects on his module.
> 
> So, is the average aftermarket part tested for EMC
> behavior?  No?  So what
> happens when I drive past a cell phone tower?  How
> about thermal shock
> testing?  No?  Oops, better not go through the car
> wash on a hot summer day.
> Shock and vibration testing?  Here in Michigan we
> have huge potholes.  
> 
> I know that I'm going to come off as yet another
> young engineer who wants to
> make everything more complex just for the sake of
> doing so.  It's just that
> I've seen some stuff that doesn't belong in an alarm
> clock, much less in a
> automotive environment where I'm trusting my
> equipment (and maybe even my
> safety) to a piece of junk that wasn't properly
> engineered.
> 
> End of rant.  I don't have the right to tell anyone
> what parts to run in
> their car - all I can do is set standards for my own
> stuff.
> 
> Eric Bryant
> mailto:bryante at ghsp.com
> http://www.novagate.com/~bryante 
> 
> -
>
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> ------------------------------
> 
> Date: Wed, 7 Feb 2001 13:52:11 -0500 
> From: "Shirley, Mark R" <MarkRShirley at eaton.com>
> Subject: RE: EFI control
> 
> So let's boil this down Bruce, what do you mean?  
> 
> - -----Original Message-----
> From: Bruce Plecan [mailto:nacelp at bright.net]
> Sent: Wednesday, February 07, 2001 1:30 PM
> To: diy_efi at diy-efi.org
> Subject: Re: EFI control
> 
> 
> 
> Golly take about defensive attitudes, and reading
> 10x more into a comment
> then what was said, geesh, BTW, Noone looks for
> reliability more then I.
> NO ONE.
> Later
> Bruce
> 
> From: "Eric Bryant" <BRYANTE at ghsp.com>
> > > From: Bruce Plecan [mailto:nacelp at bright.net]
> > > Subject: Re: EFI control
> > > Ugh, well here we go again, from accel to GM
> PCMs.  OK, took
> > > GM almost 20
> > > years to evolve this far.   GM sells what about
> 18 trillion
> > > pcms a year?.
> > > If the new stuff was still a ecm it probably
> would be in the
> > > same box as in
> > > 82, just the newer stuff has that much more
> heat, and
> > > enironment to deal
> > > with.   Things get to where they are also over
> engineered,
> > > and KISS gets
> > > completely lost.
> > > Bruce
> 
> > Well, I'm an automotive electrical engineer, and I
> do understand why the
> > requirements have evolved to the point where
> they're at right now.  If
> > you're only driving your car on the strip and it's
> being operated from
> temps
> > ranging from, oh, 40 F to 100 F, and only on dry
> days, then I can see
> where
> > you don't need the level of engineering that an
> OEM part provides.
> > However, if your car is a daily driver, and you
> want a module that will
> last
> > many years and work in all sessons, and all
> conditions, then you really,
> > really do need the level of engineering that the
> OEMs perform.  Sorry, but
> > if I'm dropping $3000 on a aftermarket ECU, then I
> want something that's
> > going to work within the stated operating
> parameters.  If the vendor
> claims
> > that the part is good for fair-weather use only
> and shouldn't be used on a
> > daily driver, fine.  If the vendor is claiming
> that I can bolt his XYZ ECU
> > into my car for use as a daily driver, then he had
> better comprehend the
> > environment and its effects on his module.
> > So, is the average aftermarket part tested for EMC
> behavior?  No?  So what
> > happens when I drive past a cell phone tower?  How
> about thermal shock
> > testing?  No?  Oops, better not go through the car
> wash on a hot summer
> day.
> > Shock and vibration testing?  Here in Michigan we
> have huge potholes.
> 
=== message truncated ===


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