check engine light

monroegt · 06-08-2005, 11:06 AM

I have a 96 mustang gt that has 142,000 miles on it and the check engine light has come on since I got it. The guy I bought it from said that it is just because he had not takin in the car for it's 75,000 mile checkup. But other than that the car runs like it is brandnew and there is nothing wrong. Sometimes the light comes on and other times it doesn't at all. Any response would be appreciated.

thanks,
Monroe GT

COUSIN ROB · 06-08-2005, 02:14 PM

It is likely the oxygen sensor that is making the light the come on.

Jeff Chambers · 06-09-2005, 12:44 PM

You really need to check the codes to see what's causing the MIL. A simple code scanner will do the trick or take it to your favorite qualified mechanic to have the codes dumped.

I just bought a killer code scanner, an OTC Nemisys. It cost $1000 but does almost everything including datalogging off the PCM. It'll pay for itself over time at my shop, but you can get the generic code output from a simple $149 Sunpro code scanner available at Sears, Autozone, etc. Some parts stores will even rent you the code scanner for free....you pay the $149, use it to retrieve the codes, then return the unit for a refund of the $149.

06-08-2005, 11:06 AM	#1
monroegt Registered Member Join Date: Jan 2005 Location: monroe Posts: 67	check engine light I have a 96 mustang gt that has 142,000 miles on it and the check engine light has come on since I got it. The guy I bought it from said that it is just because he had not takin in the car for it's 75,000 mile checkup. But other than that the car runs like it is brandnew and there is nothing wrong. Sometimes the light comes on and other times it doesn't at all. Any response would be appreciated. thanks, Monroe GT

06-08-2005, 02:14 PM	#2
COUSIN ROB Registered Member Join Date: Apr 2002 Location: VANCOUVER,CANADA Posts: 43	Re: check engine light It is likely the oxygen sensor that is making the light the come on.

06-09-2005, 12:44 PM	#3
Jeff Chambers Moderator Join Date: Aug 2000 Location: Milan, OH Posts: 2,699	Re: check engine light You really need to check the codes to see what's causing the MIL. A simple code scanner will do the trick or take it to your favorite qualified mechanic to have the codes dumped. I just bought a killer code scanner, an OTC Nemisys. It cost $1000 but does almost everything including datalogging off the PCM. It'll pay for itself over time at my shop, but you can get the generic code output from a simple $149 Sunpro code scanner available at Sears, Autozone, etc. Some parts stores will even rent you the code scanner for free....you pay the $149, use it to retrieve the codes, then return the unit for a refund of the $149. __________________ Jeff Chambers 1990 Mustang GT 10.032 Seconds / 137.5 MPH 14-time Street Warrior World Record Setter CRT Performance 2001 Tropic Green Mustang GT - 12.181 / 113.2 MPH 2002 Ford F-250 Crew Cab 7.3l Power Stroke - 17.41@77.2 "There's nothing boring about a small block automatic shifting gears at 9400 rpm!"

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