ranger7ltr
Explorer Addict
- Joined
- November 17, 2001
- Messages
- 1,300
- Reaction score
- 30
- City, State
- Great State of Texas
- Year, Model & Trim Level
- 1999 Sport
I have been driving my 99 Sport the last week or so and needed to change the air filter... Bought an Air Hog and popped it into the holder yesterday...
Now when the engine is warm I seem to get a surge in rpm like a rev limiter between 4-5k if I accelerate hard but I can steady state cruise or increase speed up to 90 mph without a problem...
It's like I am losing fuel pressure but only when I am accelerating real hard and the engine is warmed up... I wonder if the adaptive nature of the PCM reads the new air filters free flowing ability vs the clogged old paper filter...
This one got a major tune 2 weeks ago including wires, plugs, fuel filter, fuel pump, synthetic engine and tranny oils...The only change since that time is the air filter...
Now when the engine is warm I seem to get a surge in rpm like a rev limiter between 4-5k if I accelerate hard but I can steady state cruise or increase speed up to 90 mph without a problem...
It's like I am losing fuel pressure but only when I am accelerating real hard and the engine is warmed up... I wonder if the adaptive nature of the PCM reads the new air filters free flowing ability vs the clogged old paper filter...
This one got a major tune 2 weeks ago including wires, plugs, fuel filter, fuel pump, synthetic engine and tranny oils...The only change since that time is the air filter...