Comments on: Which wire is the Signal wire on the Mass Airflow Sensor on a 1993 Ford Taurus 3.8 ltr V-6 engine ? http://taurusanswers.com/which-wire-is-the-signal-wire-on-the-mass-airflow-sensor-on-a-1993-ford-taurus-38-ltr-v-6-engine.html Thu, 09 Feb 2012 11:37:00 +0000 http://wordpress.org/?v=2.7.1 hourly 1 By: sfurr74 http://taurusanswers.com/which-wire-is-the-signal-wire-on-the-mass-airflow-sensor-on-a-1993-ford-taurus-38-ltr-v-6-engine.html/comment-page-1#comment-1933 sfurr74 Fri, 20 Nov 2009 12:58:12 +0000 http://taurusanswers.com/which-wire-is-the-signal-wire-on-the-mass-airflow-sensor-on-a-1993-ford-taurus-38-ltr-v-6-engine.html#comment-1933 Terminal A is the VPWR (supply) wire. Terminal B is the Ground wire. Terminal C is the MAF RTN wire. Terminal D is the MAF wire. Connect DVOM to Terminal C & D to get reading. Should have 0.4V with ignition on. Best way to test is with a lab scope with engine running. If vehicle won't start, unplug MAF sensor and see if it will now start. If it does, you have found your culprit. (If the MAF signal is completely missing, the computer will fake it and the car will start. It will run poorly, but it will start.) Terminal A is the VPWR (supply) wire.
Terminal B is the Ground wire.
Terminal C is the MAF RTN wire.
Terminal D is the MAF wire.

Connect DVOM to Terminal C & D to get reading. Should have 0.4V with ignition on.

Best way to test is with a lab scope with engine running. If vehicle won’t start, unplug MAF sensor and see if it will now start. If it does, you have found your culprit. (If the MAF signal is completely missing, the computer will fake it and the car will start. It will run poorly, but it will start.)

]]> By: jpattonfamily http://taurusanswers.com/which-wire-is-the-signal-wire-on-the-mass-airflow-sensor-on-a-1993-ford-taurus-38-ltr-v-6-engine.html/comment-page-1#comment-1934 jpattonfamily Fri, 20 Nov 2009 12:58:12 +0000 http://taurusanswers.com/which-wire-is-the-signal-wire-on-the-mass-airflow-sensor-on-a-1993-ford-taurus-38-ltr-v-6-engine.html#comment-1934 a repair manual tells you i got a chiltons for sale 3 bucks plus shipping a repair manual tells you i got a chiltons for sale 3 bucks plus shipping

]]>