More silly ideas

[Bruce Plecan]

| Previously, you (Bruce Plecan) wrote:
| > Cause, I don't agree with theory on some items.
| > Just the name MAP,  Manifold Absolute Pressure would imply that baro is
| > accounded for.
|
| nope absolute is not refferenced to ambient, gauge is
| ( check www.omega.com) BUT gm could always be mis-using instrumentation
| terminology

No one said it was.   Engine vac would reflect bar. as read against a MAP
sensor.
Grumpy
|
| >Trouble is, not the way I see it.  All too often under very
| > different situations, I would get a 97 K/Pa WOT reading which really
| > shouldn't have happened.  Hence, my want for isolating the two.
|
| didn't one N. American car maker have a valve that switched the map sensor
| with an external solenoid valve??
|
| > Grumpy
| >
| > | The more I think about it if your going to goto all of the trouble of
| > | reworking the tables and such how about just changing to a guage type
| > | sensor that would have one sensor that would correct for baro anyway.
| > |
| > | Bruce Plecan wrote:
| > | >
| > | > What if someone wanted to use a straight full time baro correction
(for
| > a
| > | > MAP system)?.   Could it be done as simply as using a 1bar MAP
| > referenced to
| > | > atmosphere, and then the output from that one used as the reference
| > voltage
| > | > to a second MAP that is referenced to the engine vacuum.
| > | >    Then carrying this further how about as a correction for 2+3 bar
| > MAPs?.
| > | > All of the above would be require deleting the baro calc from the
prom,
| > and
| > | > recalibrating the Tables, that are VE related.
| > | > Bruce
| > |
| >
|
| --
| Pat Ford                           email: pford at qnx.com
| QNX Software Systems, Ltd.           WWW: http://www.qnx.com
| (613) 591-0931      (voice)         mail: 175 Terrence Matthews
| (613) 591-3579      (fax)                 Kanata, Ontario, Canada K2M 1W8
|