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1-2-2 fault code Regina air temperature sensor 700 1991

posted by  Chris Mullet on  Wed Oct 11 07:37 CST 2017
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last visit: Fri Oct 24 09:08 CST 2014
[RELATED]

"...What is meant for air temp sensor? IAC?..."

Air Temp Sensor = On a Regina car it's the sensor in the intake duct between the air filter and the Throttle Body. Generally not failure prone.

IAC = Idle Air Control, allows intake air to bypass the throttle plate in order maintain idle level. Prone to getting dirty and not working properly. Clean it out with carb cleaner along with the throttle body as Randy suggested.

Once everything is cleaned out make sure the throttle position switch is clicking into the idle position properly.

Reading material:

https://www.brickboard.com/FAQ/700-900/EnginePerformanceSymptoms.htm#PoorPerformanceIdleSurgeandHuntDirtyThrottleBody
--
Current rides: 2005 Volvo S80 2.5T, 2003 Volvo V70 2.4NA, 1973 Volvo 1800ES (getting ever closer to road worthiness)






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