[V8] 5sp VS Auto 3.6 ECU differences?

[Curtis Helton]

Yeah..I agree. You never hear of anyone changing out their fuel filters on
the list.

On Mon, Mar 15, 2010 at 8:48 PM, Ron Wainwright <ron_01056 at yahoo.com> wrote:

> Comments inserted....
>
> --- On Mon, 3/15/10, Tony and Lillie <tonyandlillie1 at earthlink.net> wrote:
>
> > From: Tony and Lillie <tonyandlillie1 at earthlink.net>
> > Subject: Re: [V8] 5sp VS Auto 3.6 ECU differences?
> > To: "Ron Wainwright" <ron_01056 at yahoo.com>, "urq" <urq at pacbell.net>
> > Cc: v8 at audifans.com
> > Date: Monday, March 15, 2010, 7:39 PM
> > I suspect you are talking about
> > Jack's new 5-speed, which needs guide seals unless Dave H
> > did them. I know when I drove the car (shortly before he
> > sold it) it needed them. When I followed him, it smoked both
> > on extended idle and while decelerating.
>
>  No not the same car.
> The setup is similliar though.
> 91 V8 OE 5sp using the OE 5sp wiring harness and 3.6 ECU.
> 3.6 Intake, 19lb inj,
> on Bruces ol 4.2 motor from "the Brown turd"
> as I remember it he had those heads done.
>
>  If that's not the
> > car, then onto this:
> >
> > Yes, Auto cars shut off fuel while decelerating, I believe
> > down to 1400 RPM. No, it really doesn't make sense that it
> > smokes with the auto ECU and not the 5-speed. The kearning
> > curve for the ECU is very short, on the order of warmup plus
> > about 30 seconds. Either way, what was the reasoning for
> > swapping in the auto ecu?
>
>  He sawapped ECU's cause he said he was running lean. Ended up being the
> fuel filter being clogged.
> And on a side note,
>
>  Why is it I never hear anyone saying there changing there fuel filters?
>
>  Ron
>
>
> > -----Original Message-----
> > >Subject: Re: [V8] 5sp VS Auto 3.6 ECU differences?
> > >
> > >Comments inserted....
> > >
> > >--- On Mon, 3/15/10, urq <urq at pacbell.net>
> > wrote:
> > >
> > >> From: urq <urq at pacbell.net>
> > >> Subject: Re: [V8] 5sp VS Auto 3.6 ECU
> > differences?
> > >> To: v8 at audifans.com
> > >> Date: Monday, March 15, 2010, 11:09 AM
> > >> As far as I can tell only the
> > >> EPROM.  IME on smoke on decel it doesn't
> > >> happen all the time.  Did the person who did the
> > test
> > >> swap the 5-speed back
> > >> in and see the smoke?
> > >
> > >He said he got no smoke with the 5sp ECU.
> > >
> > >>There is one possible
> > >> difference, it is something
> > >> I've asked but don't remember hearing a response
> > ... does
> > >> fuel get
> > >> completely shut off on an AT car on overrun?  You
> > can
> > >> tell by the trip
> > >> computer instantaneous fuel economy going to
> > "----".
> > >
> > >
> > > All so, it's my understanding in such a setup (4.2 5sp
> > with 3.6 stuff with bigger inj) that the ECU will have to
> > learn what's going on now with the motor.... so the Auto ECU
> > might have to learn longer than a 5sp ECU would?
> > >
> > > Ron
> > >
> > >> -----Original Message-----
> > >> From: v8-bounces at audifans.com
> > >> [mailto:v8-bounces at audifans.com]
> > >> On Behalf Of
> > >> Ron Wainwright
> > >> Sent: Monday, March 15, 2010 6:35 AM
> > >> To: v8 at audifans.com
> > >> Subject: [V8] 5sp VS Auto 3.6 ECU differences?
> > >>
> > >> Is there any differences "internally"?
> > >>
> > >> It has come to my attention that the 3.6 Auto ECU
> > doesn't
> > >> cut the fuel off
> > >> like the 5sp ECU...
> > >> ... It was told to me that in his 4.2 original 5sp
> > car with
> > >> 3.6 ECU and
> > >> wiring that with the Auto ECU on deceleration he
> > got smoke
> > >> out the rear
> > >> pipes..... but when he put the 5sp ECU in it
> > didn't smoke
> > >> on
> > >> deceleration....does that make sense?
> > >>
> > >>  Ron
> > >> 91 V8 5sp mit 4.2 aka Black Betty (hibernating)
> > >> 91 20020vt 22psi
> > >>
> > >>
> > >>
> > >>
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