Volvo S80 A performance sedan that offers top notch luxury, outstanding handling and so much more.

#3 misfiring

  #1  
Old 04-27-2009, 09:23 PM
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Cool #3 misfiring

Hi everyone
I have a problem with a 99 S80. Rough idling and poor acceleration. Message says emission control servicing or something like this. I scanned and it gives me a 0303 Cylinder #3 misfiring.
If I disconnect the wires to the coil I get no change in RPM but if I diconnect #4 wires the RPM goes down a bit. I switched #3 and #4 coils and #3 is still the problem. I switched the #3 and #4 plug and #3 is still the problem. I want to rule out the injector cause the catalictic smells real bad like unburn fuel (rotten egg smell). It's either a locked open injector or bad wiring feeding the coil?

Hope somebody had a similar problem and can direct me to the problem.

Thanks in advance for the help.

Reggie
 
  #2  
Old 04-28-2009, 08:03 AM
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I realy need help any idea Tech
 
  #3  
Old 04-28-2009, 06:12 PM
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Problem solved, when I swaped the 3 and 4 coils I put them back at the same place by mistake. This afternoon I went out and did it again and found a bad coil. $78 for a new one at a dealership, not bad to solve the problem now the car runs nice and no code.
 
  #4  
Old 04-28-2009, 07:05 PM
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Sorry was working.
 
  #5  
Old 04-29-2009, 10:57 AM
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Default Thanks Tech

I'm sure I'll be back soon to seek more help. Of course it's a Volvo but I love the car.

Thanks again
Reggie
 
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