PO603 Code - PowerStrokeNation : Ford Powerstroke Diesel Forum


Home Today's Posts Mark Forums Read
Go Back   PowerStrokeNation : Ford Powerstroke Diesel Forum > Super Duty 1999-Current > 7.3L Power Stroke Technical Info
Register Members List Timeslips Calendar Auto Loans Sponsors Becoming a Sponsor Mark Forums Read Auto Escrow

PowerStrokeNation.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools Display Modes
  #1  
Old 03-02-2008, 05:53 AM
ADubDiesel's Avatar
ADubDiesel
Offline
PSN Veteran
Member's Gallery
 
Join Date: Feb 2008
Location: Bellevue, WA
Posts: 1,112
PO603 Code

Hey guys new to the site but have been on lots of other forums. Anyways, I'm away at college and my dad was driving the 01 yesterday and said it started running rough and the CEL came on. He pulled P0603 from the edge evo. Just wondering what this is. IDM and CPS have less than 4,000 miles on them. I know it sets a code everytime you reprogram the evo but I don't believe this is it.

PO603-PCM processor
keep alive memory
Kam Error
__________________
1995 Ford F-250 7.3 (Sold)
1998 Nissan Maxima 3.0
Reply With Quote Go to the top
Sponsored Links
Advertisement
 
Sponsored Links
Advertisement
 
  #2  
Old 03-02-2008, 02:51 PM
SmokeWagon
Offline
PSN Local
Member's Gallery
 
Join Date: Sep 2007
Posts: 275
Re: PO603 Code

You should only get that code when you unhook the batteries.
Reply With Quote Go to the top
  #3  
Old 03-02-2008, 05:20 PM
ADubDiesel's Avatar
ADubDiesel
Offline
PSN Veteran
Member's Gallery
 
Join Date: Feb 2008
Location: Bellevue, WA
Posts: 1,112
Re: PO603 Code

I don't think he unhooked the batteries but I'll give him a call to make sure.
Reply With Quote Go to the top
  #4  
Old 03-02-2008, 05:32 PM
ADubDiesel's Avatar
ADubDiesel
Offline
PSN Veteran
Member's Gallery
 
Join Date: Feb 2008
Location: Bellevue, WA
Posts: 1,112
Re: PO603 Code

Bad fuel is a possiblity. We run biodiesel in the 01 and our TDI's but have never had any problems with it. (I'll at bio to my sig) I think he just filled up too because I drove it last week to a rental house when he was in Mexico and it was almost empty. Possibly a fuel filter?
Reply With Quote Go to the top
  #5  
Old 03-02-2008, 05:41 PM
Dave's Avatar
Dave
Offline
FNG
Member's Gallery
 
Join Date: Nov 2007
Location: Trempealeau WI
Posts: 5,992
Re: PO603 Code

Quote:
Originally Posted by jvencius View Post
I thought P0603 would show anytime you had programmed/chipped the PCM and by itself, wasn't anything to worry about.


There might not be any connection between the CEL/rough running and P0603, since IIRC P0603 won't set a CEL. Could he maybe have gotten some skunky fuel?
P0603 shows up every time you change a tune
__________________
Dave G

06 F250 Lariat 4x4 leveled on 35s

4 inch flowmaster exhaust
Bulletproof diesel egr delete.
Bulletproof diesel FICM
Performance Machine & Manufacturing Coolant Filter Kit

ECM and FICM tuned by Bill at PHP SCT tunes from Gearhead, Innovative and Wildman
Reply With Quote Go to the top
  #6  
Old 03-02-2008, 07:12 PM
toypuller
Offline
PSN Local
Member's Gallery
 
Join Date: Jan 2008
Location: Puyallup, wa
Posts: 374
Re: PO603 Code

Quote:
Originally Posted by SmokeWagon View Post
You should only get that code when you unhook the batteries.
Wrong on some the fords they have built into the pcm/the truck tex code. You will get this dtc without unhooking anything. This code is normal and you dont need to worry about it.This dtc only set when you run a new program and or unhook your batterys. I have already been through this dtc with edge and Bill at powerhungry.
__________________
2002 F350 DRW, 38r Turbo, Terminator T500, REG return fuel system, CTS Evo Custom tuned by Bill at Powerhungry Performance, bts converter, S&B intake, Snows Stage 3 Water/Meth. Mcculloch hids 6k.
Reply With Quote Go to the top
  #7  
Old 03-02-2008, 08:08 PM
ADubDiesel's Avatar
ADubDiesel
Offline
PSN Veteran
Member's Gallery
 
Join Date: Feb 2008
Location: Bellevue, WA
Posts: 1,112
Re: PO603 Code

Ok I thought there was a code everytime the pcm was accessed. Just got off the phone with my dad. Said its running fine in stock form, he's gonna put it back on to the tow program and just see what happens.
Reply With Quote Go to the top
  #8  
Old 03-03-2008, 02:26 AM
urbanwheeler's Avatar
urbanwheeler
Offline
PSN Veteran
Member's Gallery
 
Join Date: Nov 2007
Location: Chico, CA
Posts: 2,031
Re: PO603 Code

evo's don't plug into the pcm
__________________
'96 f-250, auto, shackle flip, solid axle, rsk, high/crossover steering, 3.73's, true trac's front and rear, trac bars, gt4202, 7.3 ic, idm mod, ccv mod, A1000, 4-line DIY Gen3, dual ipr's, casserly 350/200's, arp studs, 910's, pushrods, elec. fan, 2-stage nitrous, fluidampr.

http://community.webshots.com/user/u...host=community[SIGPIC][/SIGPIC]
Reply With Quote Go to the top
  #9  
Old 03-03-2008, 04:20 AM
toypuller
Offline
PSN Local
Member's Gallery
 
Join Date: Jan 2008
Location: Puyallup, wa
Posts: 374
Re: PO603 Code

Quote:
Originally Posted by urbanwheeler View Post
evo's don't plug into the pcm
You are right but they do access the pcm to perform program changes causing a p0603.
Reply With Quote Go to the top
  #10  
Old 05-25-2014, 03:34 AM
lgaston@gmail.com
Offline
PSN Newb
Member's Gallery
 
Join Date: May 2014
Posts: 1
Re: PO603 Code

I disconnected battery to clean cables, then found truck would not start and have code po603.
How do I correct to get truck to start and run as before?
Reply With Quote Go to the top
Reply


(View-All Members who have read this thread : 82
'94IDITurbo7.3, 027.3, 505yam, 7.3 King Ranch, 95stroker45, 97F-250HD4x4, 99redf350, adamc, ADubDiesel, AMB, Arisley, badluck_early99, blimp, BMac, Bob63, BoilermakerSteve, coolbreezabq, crowz, Dantheman, Dave, dblamp, Dieselfever, Dieselgeek, DIRTBIKEZ, DMDP, flybykota, godofdew11, greenbeast, Greg373, Heavyhaul, HunterD, Hytcrdnk, icanski2, Ice Mike, jodylee7.3, joediesle, jvencius, kenp, lgaston@gmail.com, mattrac, Mayday, mck7916, mean matt, metalphd, michealamxamc, Mr. Bob, Mr_Andy, mustang_gt_350, Nelson6.0l, nrook, ole_blu, PeterB, Powerstrokeboy, PSDOWNER, REDSTROKE188, rerunss, richyrich, rickvm, Rockrunner86, rredalty, rv7, RyanG85, SeeYa, sixiron, sled hauler, SmokeWagon, sportsdad, STROKIN N STYLE, SUPERDF350, superduty, SuperStroker10, swaan, tardymike, TerminatorEngineering, tkdbf350, toypuller, tswickedboy, turboluke, UpInSmoke7.3, urbanwheeler, vazuk
Thread Tools
Display Modes


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 05:45 AM.



Powered by vBulletin® Copyright ©2000 - 2014, vBulletin Solutions, Inc.