[Shotimes] BARO sensor

[Ian Fisher]

I have an "aftermarket" one that I got on ebay awhile
back. It still has a Ford part # and stamping on it
though. I'm going to throw it on during the engine
swap...'cause why not? =)

Ian

--- Dave Kegel <d.kegel@comcast.net> wrote:

> Is the BARO sensor available aftermarket?  Might be
> worth a quick trip to
> NAPA (or wherever) for a new one, rather than
> throwing in another used one.
> 
> Dave
> 
> -----Original Message-----
> From: shotimes-admin@autox.team.net
> [mailto:shotimes-admin@autox.team.net]
> On Behalf Of Jim & Debbie Leyden
> Sent: Saturday, September 17, 2005 6:40 PM
> To: 'Kevin & Cheryl Airth'; 'Timothy Tyner';
> shotimes@autox.team.net
> Subject: RE: [Shotimes] BARO sensor
> 
> 
> Damn, Kevin!!
> 
> That's a really good write up!
> 
> You can also use an oscilloscope or a good quality
> (read that high end
> Fluke) digital multimeter to check the waveform.
> 
> I know... who has one of those lying around...  But
> they are more readily
> available than frequency counters.
> 
> Although I'm not certain (been too long since I have
> used one) but the
> oscilloscopes that used to be used for ignition
> diagnostics might be able to
> display that high of a frequency.  Those are getting
> fairly cheap since they
> are no longer useful.
> 
> Jim
> 
> 
> 
> -----Original Message-----
> From: shotimes-admin@autox.team.net
> [mailto:shotimes-admin@autox.team.net]
> On Behalf Of Kevin & Cheryl Airth
> Sent: Saturday, September 17, 2005 12:57 PM
> To: Timothy Tyner; shotimes@autox.team.net
> Subject: Re: [Shotimes] BARO sensor
> 
> Tim The Tool Man:
> Great screen name!
> That's a tough one to troubleshoot. It very well
> could be the cause of your
> lean running but then again maybe not? The easiest
> way is just to swap
> sensor's. There have been several long term
> drivability problems that were
> finally found to be the BP sensor but no code was
> set. The sensor was still
> operating in the correct range of values but was not
> changing at all. This
> made the car drive OK at some engine speeds and
> loads and to be WAY off in
> other conditions. It's mainly used as an altitude
> compensation device so the
> closer to sea level you drive the less of an effect
> a bad BP sensor will
> have.
> 
>  Do you have access to another sensor?
> 
>  The sensor can be checked with a frequencies
> counter. Yea, I know who has
> one of these? Anyway at sea level you should be
> seeing around 160-170 Hz. As
> you apply vacuum to the open port the frequency
> should decrease to a low of
> somewhere around 90Hz. The sensor has 3 wires. One
> is the 5 VDC supply, one
> is a ground and the middle pin on the sensor should
> be the changing output.
> I do have instructions for using a tachometer to
> read the frequency. Set it
> on 4 cylinder setting and you should see 4800 rpm
> with no vacuum and the
> rpm's should decrease with increasing vacuum. . .
> 
> 
> 
> > What symptoms will I see (if any) of a bad BARO
> sensor?
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