When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
took my truck for inspection today and failed the On-board diagnostic test. Any suggestions on what went wrong. I had my superchips programmer installed when it was inspected, could that have caused it to go bad? I ran the diagonistic program and came with this code reading DTC # 01-P1000.... anyone know what this means?
My tuner always shows the same thing, just return it to stock and get inspected. The reason you got turned down was they think this an actual trouble code more than likely, but it must be harmless because I have it all the time, years.
P1000 means not all of your OBDII monitors have completed. When you go in for inspection, they hook up to your OBDII port and check to see if the ECU has ran all it's monitors. Basically, for your ECU to run the monitors all you gotta do is drive your truck. Some monitors take longer to run than others and of course, they all have their own set of "prequisites" to meet before it will run (Like drive between certain speed for so and so and slow down to so and so and stop, etc.) but usually if you drive the truck at a stead speed like 60 MPH for like 5-10 minutes, do a few stop and go around traffic the ECU should have ran enough monitors for you to pass inspection. I'm not sure how many monitors your truck has but you need at least all but two to run to pass. Also, check to see if your superchips tuner is preventing your ECU to run all it's monitors. If so, you will always have that P1000 stored and you will never pass inspection.
after i left the shop i plugged in the programmer and ran the dianostic program and got that code. Erased the code and returned the truck to the stock settings. So what your saying is just put some miles on her and that should do it. I'm going to take it back on friday maybe....u think if i put 50+ miles between now and then i should be good to go? Thanks for all the information you guys are great!
Andrew, I think the number of driving cycles may more important than distance. Start and run your truck around town and on the highway a number times then stop and do it some more.
You need at least one driving cycle to "erase" evidence that the tuner was there. However, as V10kklzz71s points out...that may not clear it up.
we have had that problem on our ford windstars here atwork, if the batt is disconnected for a while, we get the p1000 code, book told us to drive it for about 50 miles it should go away. i think it needed to be drivin at highway speed. has something to do with the evap sys. run it on a full tank of fuel. also think we have had that code come up if the vehicle is fueled while the engine is running.
What state are you in? I live in Pa. I bought my truck used (2002) and have no idea if it's ever had a tuner chip. I took it for emissions (the dealer I bought it from is located in a non IM county) and it failed because the ego sensors weren't ready to test or at least that's what the print out said. I had just come off a long trip of combined driving, had no idea where the MIL lamp was 'cause it's never been on. The tester ran a diagonstic check and it passed, he said someone probably reset the lamp, I told him I'd driven it over 1200 miles since I bought it and the MIL never came on.(only on start-up) He suggested take it back to the dealer for further testing. After leaving the inspecton station, I read the print-out and the damn thing listed my truck as an F-150 4.9L GVW 5250lbs! I called the tester back and he sais PA's IM computer printed the info-not him I checked and he had the correct serial# typed in. Could my truck think it's a 4.9L 1/2 ton because of a tuner chip or is the state's computer goofy?
You can not clear a p1000 with a scanner, you have to do a drive cycle that is a pain in the butt. One of the things you have to do is drive up to a certain speed and then cost down to a certain speed for like three times. If something happens and you dont complete it cause someone pulled out in front of you and you hit the brakes, you have to wait 8 hrs before you can try it again. Also the fuel gauge has to be between 1/4 tank and 3/4 I beleive. I am at school now on the Ford explorer and we went over this today, and I belive all Fords are like this. The instruter said it is like this so it will take longer for the check engine light to come on. He also said in some states you will flunk the emission test because of this.
it means all the readiness tests are not complete. return it to stock and drive it for a few days then go back to the new york inspection station.
advise from a old dealer tech is return them to stock at least a week before a obd2 test. run a code check before you go to. just do not reclear as you will screw up the readiness again.
get used to this guys every state has been mandated to comply with obd 2 testing for emmissions. that means leave the cats on
You can not clear a p1000 with a scanner, you have to do a drive cycle that is a pain in the butt. One of the things you have to do is drive up to a certain speed and then cost down to a certain speed for like three times. If something happens and you dont complete it cause someone pulled out in front of you and you hit the brakes, you have to wait 8 hrs before you can try it again. Also the fuel gauge has to be between 1/4 tank and 3/4 I beleive. I am at school now on the Ford explorer and we went over this today, and I belive all Fords are like this. The instruter said it is like this so it will take longer for the check engine light to come on. He also said in some states you will flunk the emission test because of this.
Daniel
are u serious...what speed am i supposed to go to and drop down to? i'm taking it back today at 1pm i'm hoping it passes i've up over 100 miles on the past 2 days both city and highway so i hope it reset by now. My superchips programmer is not going back in..if interested contact me.
are u serious...what speed am i supposed to go to and drop down to? i'm taking it back today at 1pm i'm hoping it passes i've up over 100 miles on the past 2 days both city and highway so i hope it reset by now. My superchips programmer is not going back in..if interested contact me.