[Gmecm] Injector Impedences and other Q's (was '747 multiport)

[Dave Jones]

And as to your other question, the Gen III injectors are also high-Z, just 
like the LTx & TPI.

Dave


----- Original Message ----- 
From: "DV Fagan" <dvfagan at yahoo.com>
To: <gmecm at diy-efi.org>
Sent: Tuesday, April 12, 2005 2:05 PM
Subject: Re: [Gmecm] Injector Impedences and other Q's (was '747 multiport)


> Michael,
> Yes, but..
> TBI Injectors are low impedance saturated coil
> devices.  TPI Injectors are high impedance
> non-saturated devices.  That means they like a
> modulated current source (Peak & hold).  TBI Current
> drivers are on or off.  Driving TPI injectors from TBI
> drivers should cause both the drivers and the
> injectors to run hotter than designed.
> Dennis
> --- Michael Kaczmar <abbynrml94 at yahoo.com> wrote:
>> So if you can run a '747 with high impedence
>> injectors in parallel, can
>> you run other TBI controllers the same way?
>>
>> I just bought a 93 GMC Sierra with a 4.3L V6. It is
>> TBI, but uses the
>> 16168625 Controller. I think the main difference is
>> the electronic
>> trans control capability (4L60E).
>>
>> Also, are the TPI/Lt1/Lt4 injectors high impedence?
>> What about the
>> Gen-III V8 injectors?