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Old 11-03-2004, 08:48 PM   #69 (permalink)
cbatters
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Join Date: Jun 2002
Location: Stoughton, MA
Drives: 91 Stealth RT/TT
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Default Re: 1G Electronic Boost Data Logging

Quote:
Originally Posted by Kuato
Finally got off my ass and plugged the Greddy sensor to the A22. Here are the results:

"With ignition on but engine not running please provide the following measurements with a DVM so we can figure out what is going on.

Ground Difference 0.012 Volts
Red Lead - MAP Sensor GND
Black Lead - A22-GND

Sensor Output 1.489 Volts (engine off)
Red Lead - MAP Sensor Signal
Black Lead - MAP Sensor GND

And sensor voltage at idle.

Sensor Output 1.200 +/- .060 approx Volts (Idle)
Red Lead - MAP Sensor Signal
Black Lead - MAP Sensor GND"

With the setting on 3BAR, mmcd was reading .84bar at idle- the E-01 was reading from -5 to -7 psi.
Any thoughts?
Bad vac line connection / dead sensor or dying engine! Should be ~.5 V at idle assuming -10 PSI of vacuum.


Clint
__________________
1991 Stealth RT/TT - Firestorm Red - 193K Miles / Original Owner
Maint: Castrol 10W40 / Mitsu Filter / Rislone
Replaced: 2X clutch / 3X brakes / 2X front rotors / 2X ABS HU / 1X NGK Plugs / 1X Ball joints / 2X Antenna mast / 1X Active exhaust cable / 1X Windshield / 1X Fuel FIlter / 1X Struts / 1X rear rotors / 1X Front Head / VSS / 1X rear wheel bearings / 1X Transfer case (warranty) / 1x Tie rod end (drivers side)
Overhauled: Starter, IAC, BISS, CV Boots
Upgrade: SilverStar Headlights / ebay "Xenon" Fog Bulbs (no more yellow!)
A/F Gauge / MAP - Electronic Boost Logging / MMCd Data Logger
Pending Projects: Steering Rack
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