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1997 to 2003 F-150
4.2L, 4.6L, and 5.4L equipped F-150s.


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Old Sun, September 20th, 2009, 06:29 AM
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88Racing 88Racing is offline
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Originally Posted by Power Hungry View Post
I didn't see if it was mentioned, but one thing that is a common problem is a moderately lean condition caused by using a CAI in conjunction with Programmer that wasn't set up for the inherent lean condition the CAI will normally cause. This results in poor throttle response and poor low RPM power. The canned tuning on the Gryphon will likely cause the same problems until you go with some custom tuning.
I wasn't going to mention the "blanket response" for the cai being lean due to the year of vehicle. But it most definately could be possible. The other thing is a "small" vacuum leak.

To the OP does the idle dip when brakes applied?

Lars
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Last edited by 88Racing; Sun, September 20th, 2009 at 06:42 AM.
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Old Sun, September 20th, 2009, 11:23 AM
RobbyMartin RobbyMartin is offline
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Originally Posted by 88Racing View Post
I wasn't going to mention the "blanket response" for the cai being lean due to the year of vehicle. But it most definately could be possible. The other thing is a "small" vacuum leak.

To the OP does the idle dip when brakes applied?

Lars

No idle dip at all. Normal idle in all situations.

I've heard before that CAI weren't good with programmers.
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