Subject	Idle Issue While at Operating Temp
Posted by	1990Z32Guy on September 05, 2013 at 7:02 PM
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Message	I just got around to fixing up a 1990 Twin Turbo Z that I bought earlier this year, however once it gets to operating temp the idle will fluctuate and never settle down to a smooth idle. The car has been pressure tested and there are no vacuum leaks, the only thing I have done to smooth the idle out is unplug the coolant temp sensor. Idle smooths right out (and the auxiliary fan comes on) Immediately after plugging the sensor back in, idle issue starts again. I just replaced the CTS thinking that it was definitely the problem however the brand new one does the exact same thing. Any idea guys? Thanks!
Follow Ups	Idle Issue While at Operating Temp - 1990Z32Guy 19:02:49 09/05/13 You've verified the coolant sensor is operating in spec? - jzack 19:12:35 09/05/13 Re: You've verified the coolant sensor is operating in spec? - 1990Z32Guy 19:44:48 09/05/13 Don't assume - test it per the FSM..... (n/m) - jzack 21:17:21 09/05/13 Set the TPS Voltage to .45 Volts - Cjw3 20:36:38 09/05/13 Re: Set the TPS Voltage to .45 Volts - 1990Z32Guy 21:25:56 09/05/13 Re: Re: Set the TPS Voltage to .45 Volts - 1990Z32Guy 21:36:42 09/05/13 You have to Unplug the Sensor.. - Cjw3 21:43:42 09/05/13
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