170,000 miles, got a rough idle when cold, after it warms up, it idles fine. Something simple I'm thinking...any ideas?
Probably the Temp sensor, mine did the same thing. O2 sensor will make car idle smoothly once it warms up but the temp sensor is designed too tell engine that it needs more fuel cause its cold. Replaced mine in 5 minutes and fixed immediately. Sensor is in front of engine near the thermostat housing.
Thanks I'll take a look
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