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  #1  
Old 07-16-2008, 02:37 PM
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1994 w202 misfire on 2 + 4 HELP!!!

I normally get about 26-28 MPG on average. My check engine Light came on and I realized I was only getting 13 MPG. I had the code reads from the car and the mechanic stated I had a misfire on 2 + 4. I changed the plugs and gave the car a Fuel Treatment which cleaned out alot of black stuff. However I'm still having the same problem and now think I need to change the coil packs. Should I change the individual coils or the whole pack?
Anyone?

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  #2  
Old 07-16-2008, 03:22 PM
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1 coil controls 2 cylinders.
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  #3  
Old 07-16-2008, 03:54 PM
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Swap the coils and see if the code follows the coil..
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  #4  
Old 07-17-2008, 03:56 AM
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If you swap the coils and confirm that the coils are OK proceed to check the wiring to the coil. The ECU can cause this problem also, I had the same problem and I had to overhaul the ECU. But first get a good mechanic to check the coil (resistance) and the Ignition wires.

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