My timing is at 14, im running Autolite 3924. In 2 days my car is bogging way down and not runnin the same. After I changed my plugs she was runnin perfect. I know my car is runnin really rich because when I had it dyno'd they checked my air fuel ratio. I have a Fuel Pressure Guage and Regulator on the way so hopefully I'll fix that soon. Would all this extra fuel foul out my plugs this quick? Oh yeah, they are gapped at .044. Does it really matter which adjustible fuel pressure regulator you get? They all basically do the same thing.... Right???
Fouling out the plugs in 2 days (Daily Driver)
- Thread starter Caitlmt
- Start date
I had bad o2 sensors ony my 92 GT but they didn't foul the plugs, just threw a check engine light. I have friends that use auto lights, on their 5.0L and they change plugs 3-4 times a year. I would buy some motor crafts or NGK plugs that are of equal heat range to what your car needs. I used TR6's because the car was Procharged. Anyways, try a different brand first, if the problem persists, you know it is running rich and you need to get a tune to fix the a/f ratio. That is the most important number you get off the dyno, not HP and TQ.
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