Looking to buy a 2003 G35, CEL came on during drive?

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Jan 18, 2016 | 07:21 PM
  #1  
I test drove a 2003 G35 coupe with 132,000 miles on it today, they're asking $6,500.

It was 10 degrees outside, so that could've had an effect. When they got the car they changed out the spark plugs, put on new tires, etc.

The CEL came on after it sat for a minute or two with the following codes P300, P307, P327 which all seem to relate to an engine misfire or issue with that area of the car. Also the brakes were pretty hard to press but eventually loosened up and worked great (Could have been frozen? Car was originally from the south).

Has anyone had any issues with this car in this area or should I avoid the car?
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Jan 18, 2016 | 08:05 PM
  #2  
They might have gotten #4 and #6 plugs reversed. That's what happened to me (and a few others). They look exactly identical except for 1 wire being slightly different.

IDK what the P0307 and P0327 is. Do some searching and you'll find what those codes are.
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Jan 18, 2016 | 09:14 PM
  #3  
I researched the codes and it looks like a knock sensor is bad and there's a misfire in cylinder 7, which doesn't exist?
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Jan 19, 2016 | 01:01 AM
  #4  
Keep walking, don't look back!
Gary
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Jan 23, 2016 | 09:50 PM
  #5  
Looking to buy a 2003 G35, CEL came on during drive?
politely say no and get away from that car. A CEL on a test drive is a terrible sign
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Jan 23, 2016 | 11:04 PM
  #6  
Symptoms of valve cover grommets are bad. Check the spark plugs if there's any oil on them.
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