Join Date: Sep 2012
Location: Central Valley, Sierra Mountains, California
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Do you have gauges to monitor engine values??
P0263: contribution/balance: cyl#1
P0266: "---------------------" :cyl#2
Check harness for chafing make sure injectors are plugged in tight,try wiggling around harness to see if there is any change.
What is the FICM output?
Fuel filters been maintained?
Does it smooth out after it warms up?
P0403:EGR Control unit
P0404 EGR Performance range
P0405 EGR sensor low
Again look for wiring cuts-chafing egr plugged in tight.
Pull out the EGR and clean it, check o-rings for nicks-grease o-rings clean bore and reinstall.
P0500: Vehicle speed sensor
Trans actuator search/faulty/open circuit/short/low trans fluid Check harness coming down to transmission and check fluid level.
Check out charging system and batteries as well as all cables and grounds also get FICM values through all temps and speeds. If you have a scan-tool watch the desired and position of the egr valve, should be tracking along with the pcm,s disired position. That is as long as you still have one. lol
2006 F250 LARIAT CCSB 4X4
ARP Studs, O-Ringed Heads
X4 PHP 65 HP Custom Tow Tune
Atlas40 or Atlas80 Ficm Tune
CAT EC-1 Coolant, IPR Coolant filter
BPD Waterpump, BPD way of thinking
Fass-125 to a Adjustable Pressure Reg.
Turbo-back SS 4" pipe, Corsa Muffler -7" Tip
6.4 starter, DC Power 270 amp alt
Die Hard Platinum AGM all 2/0 Cables
Fabtech Radius Arms
7" lift w: Icon Progressive Coil Springs
2008 up Carli/Deaver rear springs
All riding on some Fatty-Daddy 38/15.50/18 Toyo's
Last edited by mhatlen; 02-09-2013 at 01:12 AM.