[Supras] AFM (hot wire type)

Sat Dec 1 12:42:37 CST 2007

Code 31 and 71 should be easy to deal with.

71 especially.  That is the EGR temp sensor.  I assume you have an EGR with
a temp sensor, it is usually unplugged since it is hard to reach.

If you happen to have an EGR without a temp sensor, a resistor added to the
harness will satisfy the ECU and erase the code.

If you have NO EGR, then you probably won't pass :)

Code 31, AFM, what have you done there?

Robert
935 Motorsports
619-670-0841

-----Original Message-----
From: supras-bounces at supras.com [mailto:supras-bounces at supras.com] On Behalf
Of Bob
Sent: Saturday, December 01, 2007 6:28 AM
To: supras at supras.com
Subject: Re: [Supras] AFM (hot wire type)

Do you think the car will be in spec?

Last time I was there I smogged 4 cars for friends.  All of them passed,
even the 200,000 mile Acura.

I took the cars to 2 different shops and... well... NASA won't be calling
any of them offering them a job.

If the light is off and the specs out the pipe are ok I doubt they will
notice.  What you have to do to make the light go out is up to you.

Will the codes come right back or will they say away long enough to pass
smog?  

Check engine light bulbs do burn out if you get my drift.

Bob

-----Original Message-----
From: supras-bounces at supras.com [mailto:supras-bounces at supras.com] On Behalf
Of b2nice84 at aol.com
Sent: Friday, November 30, 2007 8:08 PM
To: mikejaygreen at hotmail.com; supr91tt at yahoo.com;
berniek at technicaldevelop.com
Cc: supras at supras.com; beyondlmts at aol.com
Subject: Re: [Supras] AFM (hot wire type)

Yup CA.

I gotta pass smog this comming year and I have a check engine Cods 31 and 71
I am fighting.

--Original Message-----
From: Michael Green <mikejaygreen at hotmail.com>
To: b2nice84 at aol.com; supr91tt at yahoo.com; berniek at technicaldevelop.com
Cc: beyondlmts at aol.com; supras at supras.com
Sent: Fri, 30 Nov 2007 1:54 pm
Subject: RE: [Supras] AFM (hot wire type)

?In Seattle, no issue. California?

?
> To: supr91tt at yahoo.com; berniek at technicaldevelop.com
> Date: Wed, 28 Nov 2007 17:17:22 -0500
> From: b2nice84 at aol.com
> CC: beyondlmts at aol.com; Supras at supras.com
> Subject: Re: [Supras] AFM (hot wire type)
> 
> Just a question, is using the MAFT-Pro smog legal?
> 
> Brandon
> 
> -----Original Message-----
> From: Rockey Fox <supr91tt at yahoo.com>
> To: berniek at technicaldevelop.com
> Cc: Supras at supras.com <Supras at supras.com>; beyondlmts at aol.com
> Sent: Wed, 28 Nov 2007 5:31 am
> Subject: Re: [Supras] AFM (hot wire type)
> 
> 
> 
> I'll be fabbing a tube from the turbo inlet to adapt the FIPK near the
stock 
> location to facilitate intake of cooler air. At one time I had considered 
> placing the intake air filter under the right side headlight assembly but
chose 
> instead to mount my remote oil filter there. I was also concerned that 
> rain/water could splash into that area and enter the fresh air intake
stream.
> 
> The total elimination of the AFM restriction by setting up MAFT-Pro in
speed 
> density mode was a major determining factor for going in this direction
instead 
> of the Lex AFM upgrade. The tuning capabilities are much more robust too.
> 
> Rockey 91T
> 
> ----- Original Message ----
> From: "berniek at technicaldevelop.com" <berniek at technicaldevelop.com>
> To: Rockey Fox <supr91tt at yahoo.com>
> Cc: beyondlmts at aol.com; "Supras at supras.com" <Supras at supras.com>
> Sent: Tuesday, November 27, 2007 10:09:50 PM
> Subject: Re: AFM (hot wire type)
> 
> 
> Rocky:
> 
> Thanks for the correction. You mentioned mounting the FIPK 
> virtually (?) at the turbo before, but I thought it was because you
> were 
> using a GM hot wire AFM, which is only about 2.5" long.
> 
> 
> Bernie
> 
> 
> Rockey Fox wrote:
> > Actually I'm setting my MAFT-Pro up in speed density mode which 
> > eliminates the AFM...basically I now need to figure out how to
> install 
> > my FIPK to the inlet of the turbo.
> >
> > Rocky 91T
> >
> > ----- Original Message ----
> > From: "berniek at technicaldevelop.com" <berniek at technicaldevelop.com>
> > To: beyondlmts at aol.com; "Supras at supras.com" <Supras at supras.com>; 
> > Rockey Fox <supr91tt at yahoo.com>
> > Sent: Tuesday, November 27, 2007 7:38:57 PM
> > Subject: Re: AFM (hot wire type)
> >
> > Roberto:
> >
> > The hot wire meter is not used on MkIII Supras but is used by
> > others, primarily Nissan and GM although there are adaptations of the
> GM
> > type for Supras (Rockey Fox is installing one). To a large extent,
> they
> > are (were?) self cleaning. I had an '84 300ZX bought new which had
> > one. Every time you shut the engine off, it energized the wire to
> red
> > heat for two seconds to burn off any contamination. We have a last
> > generation Maxima which has one, and I do understand that they can be
> > troublesome, although the one in my ZX was not. They work by putting
> > enough power into the wire to keep it at the same electrical
> resistance
> > despite cooling from airflow, and the measure of airflow is how much
> > power is put in. There is also a fixed power variant in industrial
> > applications, but I do not believe it is used in automotive work. 
> > Technically it is call a "hot wire anemometer".
> >
> >
> > If the wire is dirty, airflow will read low. There are
> procedures
> > for cleaning the wire with denatured alcohol, which should not be
> > detrimental. I've seen a product like or identical to the one you
> > referred to. It should be OK to use. The wire is made of high
> > temperature corrosion resistant alloy, perhaps nichrome. I would not
> be
> > afraid to do it, but would do the cleaning with care.
> >
> >
> > BernieK
> >
> >
> >
> ------------------------------------------------------------------------
> > Get easy, one-click access to your favorites. Make Yahoo! your 
> > homepage.
> <http://us.rd.yahoo.com/evt=51443/*http://www.yahoo.com/r/hs>; 
> 
> 
> 
> 
> 
> 
>
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