Help! Code P1000 After Tune
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Cargo Master
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From: CA
Help! Code P1000 After Tune
I Just Installed The Tune From The Pred Into My 01' F150 5.4l. All Is Fine Except A Trouble Code P1000 (obdii System Test Incomplete) I Called Diablo And They Said That It Should Clear Itself After Driving. Well I'ts Been 40 Miles And It's Still There. What Is This And How Can I Clear It.
Post Fiend
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From: Enjoying the real world.
Be patient. Its a normal code that is set as a result of a computer reset. Disconnecting the battery will give the same code. Don't clear it, give it a few key cycles and a couple hundred miles. It will go away when the computer completes all its tests.
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Cargo Master
Joined: Mar 2004
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From: CA
I Found Out Later On That The Computer Needs To Test Itself Through A Series Of Things. I Had Initially Tried To Clear It, But It Wont Let You. All Is Well And Overall Drivability Is Much Better Than Stock. I Never Drive Quick And Rarely Even Push The Pedal To The Floor. Part Throttle Driving Has Been Positively Effected For The Better. Thanks For Your Reply, I Saw Where The Pred Has A List Of Normal Codes, Just The P1000 Was Not On It's List.
Junior User
Joined: Feb 2005
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From: Parma Heights, Ohio
most trucks never get rid of that code even with over 200000 miles. you need to go though a drive cyle....... start engine with ambient temp lower than 40 degrees with a/c on, drive 0-60 with more than .5 throttle, keep at 60 for 5 miles, deacell to 35mph with no brake applied, 35 to 60 full throtle. it all in my scanner. basicaly its ok evey thing will be allright. p1000 is nothing to be worried about..
Elder User
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Like Ken said, it will clear on its own, just give it some time. Every time you disconnect the battery, or hit the clear codes on your scan tool, you will get this p1000 code till the computer re-runs its self test. If you have to get an emission state inspection done dont disconect the battery, or clear the codes just before you go in. They will reject the truck.
DP.
DP.
Junior User
Joined: Aug 2004
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From: Music City< USA
Information below gained through painful experience.
The P1000 code will NOT go away if you are running the Predator pulley tune.
I drove mine for 5,000 miles, including exhaustively duplicating the EVAP drive cycle a dozen times. And the P1000 never cleared. Keep in mind that in many areas, such as central Tennessee, you cannot pass emissions if you are throwing a P1000. That means no license plate renewal... a BIG deal!!!
Finally I reinstalled the stock tune and the P1000 was gone in less than 100 miles. Remember... it hadn't cleared in FIVE THOUSAND miles with the Predator Pulley Tune.
We know that the pulley tune incorrectly reports the throttle position sensor WOT, PT and closed throttle status. You can observe this with the Predator. I theorize that this prevents the EVAP test from even starting, much less completing.
Good luck.
Sam
The P1000 code will NOT go away if you are running the Predator pulley tune.
I drove mine for 5,000 miles, including exhaustively duplicating the EVAP drive cycle a dozen times. And the P1000 never cleared. Keep in mind that in many areas, such as central Tennessee, you cannot pass emissions if you are throwing a P1000. That means no license plate renewal... a BIG deal!!!
Finally I reinstalled the stock tune and the P1000 was gone in less than 100 miles. Remember... it hadn't cleared in FIVE THOUSAND miles with the Predator Pulley Tune.
We know that the pulley tune incorrectly reports the throttle position sensor WOT, PT and closed throttle status. You can observe this with the Predator. I theorize that this prevents the EVAP test from even starting, much less completing.
Good luck.
Sam
Last edited by R_Rider; Feb 28, 2005 at 02:26 PM.
Post Fiend
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From: Enjoying the real world.
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Junior User
Joined: Aug 2004
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From: Music City< USA
Originally Posted by webmaster
This isn't a Lightning/Harley so there isn't a pulley or pulley tune to worry about. 
OK I'll read first next time!!! Can you tell I was scarred by the experience?
Sam "P1000 on the brain"
Junior User
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From: Music City< USA
Originally Posted by Eric Brooks
Thats odd, on my 03 Cobra, with a pulley and the Predator tune, it went away after a few days of driving.
I'll bet your TPC reads correctly on the Predator?
Senior User
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From: Tucson
My 2000 F250 with a 5.4 had the predator program in it and I drove from AZ to Dallas and back and STILL has the P1000!!! I took the tune out of the truck and I am trying to get it to throw a code so I can diagnose a misfire of some sorts.
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I was wondering what that code was for.... well now that I know, one question: Will the PCM process other codes while it waits for the P1000 to clear itself? (not that I expect to see any trouble codes, nor that I want to for that matter) And if so, will any codes show along side the P1000? Flyboy states that after driving several hundred miles that the code never went away...
Last edited by redrumybronco; May 29, 2005 at 10:29 PM.
Post Fiend
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From: Enjoying the real world.
Yes, the PCM processes other codes. Its constantly checking conditions. Some set immediately and some take time. You can get other codes while this one is set. I'm not sure what condition is causing the P1000 to stay on for him, its extremely unusual.