I installed the airforce 1 .and it was awesome. reset the computer-started it up and laid a patch of rubber down the street. well by the end of the day that stoped. at first it scremed and now -although it still way better then stock- i cant even get a chirp. why????

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99' F150 LARIAT S/C WOOD DASH -5.4---3.73'S AIRFORCE 1, AMSOIL, OFFROAD EQUIP GROUP, TOW PACKAGE ,TECH STYLE TONNEAU,

. pic atwww.f150world/las52/

 

Did the weather of temperature change? Did you fill up the gas tank? Were you on the same road?

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2000 F-150, XLT, SC, 5.4, 4X4, 355 LS, ORP, Black/Silver, class III, single CD, sliding glass, med. gray, keyless, elect. shift, engine date 8-18-99, Superchip. 2.02" corrected radiator-F75Z-8005-GA --- '93 Harley Fatboy Black & tons of chrome

 

EVERYTHING STAYED THE SAME-- IT ONLY TOOK A HOUR OR SO TO CHANGE.

 

It got tired of you beating on it. It's pissed off.

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2000 EDDIE BAUER EXPEDITION 4x2

• Estate Green
• 5.4 ltr
• 3:55 LS rear
• Superchip!
• Airaid FIPK
• Gibson S/S Swept Side Cat Back Exhaust
• Hellwig Rear Anti-Sway Bar
• Energy Suspension Polyurethane Front Anti-Sway Bar Bushings
• Edelbrock Performer IAS Shocks
• Mobil 1
• Xenon Super White Head and Driving Lights
• Tow Package
• Rear Load Leveling
• Moonroof
• Century Child Seat!

-->Follow Me...<--

 

My guess is that the computer started off with a set of default values that were necessarily rich. As you ran the vehicle it started to "learn" your specific engine characteristics and modified the parameters for economy. To verify, simply remove the neg. (ground) cable for about 30 sec (some suggest turning on the headlight switch momentarily during this period to discharge any stored electrons in capacitors and such) then reattach the cable. Now drive your truck and see what happens. If it idles a little rough but has the power you first experienced, then you know what is going on; if not, then its on to round 2 of the guessing game. BTW I lived in the Middletown/New Britain area from 1972 till the big blizzard of 1978 (graduate of CCSC)

[This message has been edited by JimCaudill (edited 06-29-2001).]

 

if your engine was cold when you took off the first time it may have benefitted from an intercooling effect because it hadn't yet warmed up (incoming air/fuel was much cooler and dense that it was when warm).... this used to happen in my civic, but its not good to beat on your motor before it warms up...

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2001 F-150 XL SWB
4.2L 5-spd, 3.55
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Other Cars:
2001 F-150 SuperCrew (Dad's) XLT, 5.4L, Towing Package w/wrong radiator.
1994 Honda Civic DX Hatchback, 1.5L, 5-spd. Shared it with my sister in high school... recently totaled when she was driving with only 1 contact lens in.
1983 Chevy Camaro (Roomate's) 383 Stroker, Tremec T-5, 4.10, AFR Heads, Edelbrock Intake, custom cam, etc... ~500 hp (not quite built yet)
1997 Saturn SL(ow) (Girlfriend's) Breaks down alot... also equipped with firestone death-tires as we found out a couple of weeks ago while going 75 mph... luckily she managed to pull it off the highway safely.

University of Texas at Austin, Class of 2001

 

I guess i wont be gettign that chip anytime soon!