Quote:
|
Originally Posted by BLACK94TT
That's good stuff. Sounds like you do this for a living. I just PM'd you with my results from hooking up the Autometer boost gauge MAP sensor to A-22. Also included is the info you were asking for.
|
You are right - I have been involved in instrumentation for many years. Automobile just happens to be a particularly harsh/hostile/noisy environment for making analog measurments. Compounded by the fact that all of the inputs to the ECU are single ended which simply means that measurements are made with respect to ECU ground so where you "ground" sensors / gages is critical.
Next time you are crawling around under your dash, you should connect all of your gage ground connections to the ECU signal ground.
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