Non-Adjustable TPS Output Check-TBI 700
4-28 FUEL CONTROLNON-ADJUSTABLE TPS OUTPUT
CHECK-TBI 700 This check should be performed, only, when throttle body parts have been replaced, or, after the minimum idle speed has been adjusted.
1. Connect digital voltmeter J29125-A or equivalent, from TPS connector terminal "B" to terminal "C" (jumpers for terminal access can be made using terminals 1214836 and 12014837). An ALDL scanner can be used to read the TPS output voltage.
2. With ignition "ON", engine stopped, the TPS voltage should be less than 1.25 volts. If more than 1.25 volts, replace TPS.
3. Remove the voltmeter and jumpers, reconnect the TPS connector to the sensor.