Question about 1993 Ford Mustang

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Computer codes 223, 224

I have a 92 Mustang with the 2.3 liter with 8 spark plugs. I pulled the 223, 224 codes out of the computer. The car may run great one moment then run bad the next and then good again. It feels like it is missing on one or two cyl. What is wrong with this car?

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  • steven_k_smi Feb 10, 2009

    I've already changed plugs and wires. This problem started weeks after I changed them. The car will run great for days/miles then the next time I start it it may run bad. I may drive it a few blocks and the car will just start running good. Then I can pull up to a stop and the car may or may not run good. What do you think?

  • steven_k_smi Feb 10, 2009

    This engine doesn't have a distibutor. When the engine is running right it is really smooth and has power. Then all of a sudden the engine will run bad, run rough and have very little power. I can smell unburned fuel and it feels like the engine is missing on a cyl. or two. Then maybe a couple of blocks later, the engine will start running right again. I appreciate your help.

  • steven_k_smi Feb 10, 2009

    Thanks! I've never been to this site, what's the best way to find this entry at 2carpros?

  • steven_k_smi Feb 10, 2009

    Thanks for your replies. Now all I have to do is trouble shoot this thing and find out the exact problem. I think this is going to be a big help.

  • jim beckwith May 11, 2010

    ask the part department

    or call autozone



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Hi, This exact problem with the same make and model car was posted last month on 2carpros web site. They give the same two codes with a very detailed, lengthy description on exactly what to do. It cannot be answered any better! Check out the 2carpros website forum. Credit to: bluelightnin6, Certified 2CarPros Technician

Posted on Feb 10, 2009

  • Jim London
    Jim London Feb 10, 2009

    Hi, The web site is: Type 1993 mustang error codes 223,224. The procedure is the same for the 92 as the 93. Good Luck!


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Sounds like your missfiring on a couple of cylinders i would give the vehicle a tune-up first and formost change plugs and wires usally a bad spark can give u more trouble than you think

Posted on Feb 10, 2009

  • joesavv63 Feb 10, 2009

    sounds like it could be quite a few issure mainly what i think it may be is a bad distributer cap seems that if you have replace sparks and wires and car is still running erratic or the problem could be a simpler solution after checking that i'de check air filter fuel filter and pcv all factors in a rough idle



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Not all spark plugs firen

You check the right firing order?

1991 Ford Mustang 2.3 liter SOHC L4


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Also, need check the PCM for someone short; sometimes this is the reason it wasn't sending a signal to the coil. You have constant power at the coil but the ground signal doesn't fluctuate from on to off while the engine is cranking. If the hall effects switch in the distributor is bad it won't tell the PCM when to fire the coil and the hall effect switch also operates the tachometer. So if this switch is bad the tach and the coil would not work.

Good luck.

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I highly recommend keeping a code reader in your car tool kit. very useful.

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