something getting hot ?

Bru · 11-05-2014, 12:31 AM

Make sure its not a problem of going from closed loop (cold) to open loop (warm). That is when the oxygen sensor provides signals to the ECU. The test procedure is outlined in a good repair manual or online at sygnus x1. You will need a ohm meter. Check the oxygen sensor for a open heater circuit. You can also check the throttle position sensor. Sometimes they stick and don't come back to idle even though the throttle plate has. You will need a ohmmeter an a set of feeler gauges and a offset (s shaped) Phillips screwdriver. Work with a paper towel under the TPS to catch a screw if dropped.

http://www.cygnusx1.net/Supra/Library/TSRM/MK3/

11-05-2014, 12:31 AM	#5
Bru Bone Stock w Upgrades ;-) Join Date: Apr 2010 Location: Tampa Bay Posts: 211	Make sure its not a problem of going from closed loop (cold) to open loop (warm). That is when the oxygen sensor provides signals to the ECU. The test procedure is outlined in a good repair manual or online at sygnus x1. You will need a ohm meter. Check the oxygen sensor for a open heater circuit. You can also check the throttle position sensor. Sometimes they stick and don't come back to idle even though the throttle plate has. You will need a ohmmeter an a set of feeler gauges and a offset (s shaped) Phillips screwdriver. Work with a paper towel under the TPS to catch a screw if dropped. http://www.cygnusx1.net/Supra/Library/TSRM/MK3/ Last edited by Bru; 11-05-2014 at 12:37 AM.