I have a 2000 V6, 5spd wagon with about 130000 miles. Tonight after driving for about 1.5 hours in stop and go traffic I turned off the car for 10 minutes and started having problems on restart. The car took a lot of cranking before it caught then idled low (300-400rpm) for a few seconds and then went to 1200 or so. I tried to start 4-5 times in first and it kept stalling even with a good bit of gas pedal, after reversing I was able to start. Soon there after I tried to go up a hill and got stuck at a traffic light, when I tried to hill start I had more stalls even with full gas applied and the car did not sound like it was putting out any power. I backed down the hill and made it home a different route. What are likely causes of this? Note my check engine light is on intermittently for an O2 sensor. I have had the car for 4 years and 60000 miles with minimal issues, and done big (timing belt and cam seals) maintenance on schedule and oil every 5k. Is this likely an inexpensive fix or not? I am not quite ready to replace the car but don't want to spend any money on it as I will likely replace before 150000 miles.
Strange Throttle Response in 2000 V6 5spd
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my vote is you have a bad coolant temperature sensor.
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There are way too many possibilities to guess at what could be wrong. Start with a scan, you probably have more than just an O2 code. Also check all intake connections and vacuum lines. Also check the battery and alternator output. Low voltage can screw with the throttle body settings.
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