My car has been misfiring like crazy and so the first thing i do was change the plugs to diagnose it. Bam! problem goes away. Car pulls like a freight train now. Upon further inspection of the old plugs that were misfiring i see that these are the wrong plugs but they were in the car when it was getting dyno tuned. I was just wondering if the car should be fine now with the new plugs? I replaced them with oem plugs and its running perfect. Any help is appreciated.

 

the tuner tuned the car with it misfiring and didn't check the plugs??

 

You have to wonder about these tooners sometime eh!

 

If the car is running "perfect" now then I can't suggest anything else.
How is your AFR now?

 

any reputable tuner would not continue to tune with misfire....... wtf?

 

tooners?

 

Please PM me on who you got the tune from.

Just curious..