Truck throwing codes again!!!!!
Thread Starter
|
Lead Driver
Joined: May 2007
Posts: 5,613
Likes: 9
From: Flagstaff, Arizona
Truck throwing codes again!!!!!
Okay now I got a new code- P0603 Internal Ctrl Mod KAM Error. Anybody know what that is???? Truck won't even start now! I pulled the codes, cleared them, tried starting it with tuner in performance mode, ran like crap. Same code came up again, cleared it. Then returned to stock mode.....tried to start it, NOPE! Wouldn't start and Acts like it's not getting any fuel now! I just changed my CPS two days ago by the way, not sure yet if it's related.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
0603 shouldn't keep the truck from starting. Your not having good luck right now. Have you tried changing everything back to stock & removing the tuner?
Possible causes:
battery or PCM has been disconnected.
battery cables loose or poor connection.
battery discharged.
open in KAPWR circuit.
blown fuse.
PCM.
Possible causes:
battery or PCM has been disconnected.
battery cables loose or poor connection.
battery discharged.
open in KAPWR circuit.
blown fuse.
PCM.
Thread Starter
|
Lead Driver
Joined: May 2007
Posts: 5,613
Likes: 9
From: Flagstaff, Arizona
Yes......removed everything and returned to stock, and it wouldn't start at all. I'm getting good power from batteries because it's attempting to crank easily. I don't know what the KAPWR is......what is that code that I"m getting? I have no clue 
New User
Joined: Feb 2007
Posts: 1
Likes: 0
Put your old cps back in and see if it clears code. Ford has had my truck for 2 months. Ran fine no codes, they put in recall cps, and are trying to figure out why it is coding with new senser. It codes misfire on injecter 8. new sensor new loom new computer they even put a new cam in it. something is wrong and ford does not know what it is, and they are not saying squat.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
If you've been changing tunes in the PCM, then it's probably just the PCM reset throwing that code. I got the same code recently from disconnecting and cleaning my battery cables one at at time.
You've got something else going on. It doesn't make sense it would start in performance mode but not in stock. Can you explain running like crap a little better? Any other dash lights come on with it running bad?
You've got something else going on. It doesn't make sense it would start in performance mode but not in stock. Can you explain running like crap a little better? Any other dash lights come on with it running bad?
Thread Starter
|
Lead Driver
Joined: May 2007
Posts: 5,613
Likes: 9
From: Flagstaff, Arizona
Originally Posted by cvwcows
Put your old cps back in and see if it clears code. Ford has had my truck for 2 months. Ran fine no codes, they put in recall cps, and are trying to figure out why it is coding with new senser. It codes misfire on injecter 8. new sensor new loom new computer they even put a new cam in it. something is wrong and ford does not know what it is, and they are not saying squat.
Thread Starter
|
Lead Driver
Joined: May 2007
Posts: 5,613
Likes: 9
From: Flagstaff, Arizona
Originally Posted by F350-6
If you've been changing tunes in the PCM, then it's probably just the PCM reset throwing that code. I got the same code recently from disconnecting and cleaning my battery cables one at at time.
You've got something else going on. It doesn't make sense it would start in performance mode but not in stock. Can you explain running like crap a little better? Any other dash lights come on with it running bad?
You've got something else going on. It doesn't make sense it would start in performance mode but not in stock. Can you explain running like crap a little better? Any other dash lights come on with it running bad?
Trending Topics
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
You got any friends with a PSD you could try swapping PCM's with? Maybe someone from the local chapter. It might also be worth finding someone with a scanner other than the Superchip to see if anything else shows up.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Thread Starter
|
Lead Driver
Joined: May 2007
Posts: 5,613
Likes: 9
From: Flagstaff, Arizona
There's a mechanic who worked for Ford for 20+ years that is on his own now......I might take it to him on monday. Truck is charging for the night and it's like 15 degrees. I'm done for the night...Thanks for you help Chris!!!!
Cargo Master
Joined: Apr 2004
Posts: 3,162
Likes: 1
From: Vilonia Arkansas
I think you will always get that code when you use a tuner. Did you check your fuel pressure and filter, since you ran her dry not to long ago could have pulled some crap loose in the tank. Are you getting any smoke ?
Post Fiend
Joined: Feb 2006
Posts: 11,892
Likes: 2
From: Middle Tennessee
Before you take it to a shop, make sure it is getting fuel. If it is cranking but won't start, and it is injecting fuel, you ought to be able to tell out the tailpipe just by the smell or smoke. Check it out. No fuel = no start as we all know.
Edit: Also, check the fuel heater fuse which the PCM runs off of too, #30 I believe. Look in your owner's manual.
Edit: Also, check the fuel heater fuse which the PCM runs off of too, #30 I believe. Look in your owner's manual.
Thread Starter
|
Lead Driver
Joined: May 2007
Posts: 5,613
Likes: 9
From: Flagstaff, Arizona
Bad news.....fuel pump is toast! Part is $400 and $200 to install......major bummer! I need it fixed right away though, it's snowing here AGAIN and my commuter car is a Mustang...not the best in the snow.
Thread Starter
|
Lead Driver
Joined: May 2007
Posts: 5,613
Likes: 9
From: Flagstaff, Arizona
Truck running good again now, $642.94 later OUCH. I had the original fuel pump in it still....and I've got a bit over 160,000 on the truck, I guess that's not so bad for a fuel pump, but still sucks to pay money out! Wanna play....gotta pay!