gmrulz4u Posted November 1, 2002 Report Share Posted November 1, 2002 I do love it! But so far the only things I've been able to scan are: 1) PROM ID 2) Coolant Temp 3) Start Up Coolant Temp 4) Throttle Sensor 5) Throttle Angle 6) Engine RPM 7) Vehicle Speed 8) Oxygen Sensor Voltage 9) 02 Cross Counts 10) Block Learn 11) BLK LRN Cell 12) Integrator 13) Idle Air Mtr Pos 14) Desired Idle 15) Barmotric Pressure 16) MAP Sensor 17) Manifold Air Temp 18) Fuel Pump Sensor 19) Battery Voltage 20) Spark Adcance 21) Desired A/F Mix 22) Injector Pulse 23) CCP Duty Cycle 24) Knock Retard 25) Engine Run Time 26) Catalytic Temp 27) Knock Sensor 28) TCC Status 29) A/C Clutch 30) Hwy Spark Advance 31) EGR 32) Air Switch Solenoid 33) Park/Neutral 34) Third Gear 35) Fourth Gear 36) A/C 37) Oxygen Sensor 38) IAC Motor Reset 39) Fuel Cut Off 40) Learn Control 41) Rich Lean Flag 42) Loop Status I'm concerned/confused about this, why can I only test 42 different variables, when the AutoXray manual shows over 100+ for GM OBD-I?? Is there any books or websites that you recommend for more information on what various readings SHOULD be? In other words, lets say my "Injector Pulse" is "10.3 mS", what the heck does that mean to me?? What good is the information, if I have no idea what I'm supposed to do with it? Any recommendations are truly apprecaited! THANKS! Quote Link to comment Share on other sites More sharing options...
Guest Anonymous Posted November 1, 2002 Report Share Posted November 1, 2002 Where did you get the auto x-ray and what did you pay for it? Quote Link to comment Share on other sites More sharing options...
gmrulz4u Posted November 1, 2002 Author Report Share Posted November 1, 2002 I ordered it from http://www.autotestsys.com They only charge $149.99, plus, you get a FREE Carrying Case, as well as FREE Shipping in the US!! The EXACT link is: http://www.autotestsys.com/Merchant2/merchant.mv?Screen=CTGY&Store_Code=ATS&Category_Code=AX For OBD-I, you need the model number 10110. Also, go to http://www.autoxray.com for the company site. JEFF Quote Link to comment Share on other sites More sharing options...
crc Posted November 1, 2002 Report Share Posted November 1, 2002 Well.. On those parameters you listed.. mostly ECM if not all ECM.. There are a bunch of other codes not related to ECM including ABS on certain GM cars. The ABS controller alone can add dozens of additional codes. As for the injector pulse, we're talking about a Fuel Management paramater that is continously adjusted by the ECM (hence changing) when the car is running. It does this with the help of inputs from sensors and also preset fuel logic and algorithms so it is not easy to pinpoint specific reference numbers. If you turn your air conditioner on you should see a change in the pulse as the ECM is reacting to increased power demand. If you really want to get into the whole complex world of ECM operation and programming you can read about GM EFI at this site: http://www.customefis.com/GMEFI.html You'll find excellent introductory info there.. Hmm.. you sure it was 10.3ms and not 1.3ms? Just curious.. Quote Link to comment Share on other sites More sharing options...
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