Engine Coolant Temperature Sensor
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Join Date: Jan 2012
Location: Newport Beach, California
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Join Date: Jan 2012
Location: Newport Beach, California
Posts: 5,641
Received 2,636 Likes
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Dreamjags: where are you located? If you are already into cold morning starts, it is most likely the temperature sensor (your photo). Frequently the issue once the cold weather arrives in North America. Most folks buy a new crossover pipe which usually includes a new sensor. But if your OBD reader can read codes, you might also be able to read the actual temperature change in real time: if so, not likely the sensor.
But put your location in the box in the upper right corner.
But put your location in the box in the upper right corner.
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#10
It is possible that the problem is the fuel pressure regulator. Give this a try and see how it starts. Turn the key to position 2 and let the dash sequence process and then turn key off. Do this 2 more times. Then start as normal. Is the cold start improved? If so the pressure regulator is allowing overnight or sitting to allow the rack pressure to drain off and when you try to start the 3 to 5 second fuel pump initial run on switch position 2 isn't sufficient to recharge the rack.
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