Resetting codes
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Resetting codes
Folks, I need some help.
I have a 97 F150 with a 4.6L. I had the usual 'insuffeciant air flow through EGR" issue that everybody else has. I did all the repairs, and replaced the EGR and the DPFE and now I am getting an "excessive air flow through EGR" code and my check engine light is on again. My real problem is that my state inspection is out and have already got a ticket for it. I have to get this truck inspected and it will not pass with the check engine light on. My question is, I know I can reset the code by removing the neg battery terminal and then putting it back, but I've been told that this gives a code showing that the codes have been reset and they still won't pass it. Another buddy told me he did this and it passed with flying colors. Does reseting the codes give a code reset code and how long will this code stay there?
I love my truck and it has given me years of unwavering service, but this problem is going to drive me nuts!!!
Thanks in advance for the help.
Matt
I have a 97 F150 with a 4.6L. I had the usual 'insuffeciant air flow through EGR" issue that everybody else has. I did all the repairs, and replaced the EGR and the DPFE and now I am getting an "excessive air flow through EGR" code and my check engine light is on again. My real problem is that my state inspection is out and have already got a ticket for it. I have to get this truck inspected and it will not pass with the check engine light on. My question is, I know I can reset the code by removing the neg battery terminal and then putting it back, but I've been told that this gives a code showing that the codes have been reset and they still won't pass it. Another buddy told me he did this and it passed with flying colors. Does reseting the codes give a code reset code and how long will this code stay there?
I love my truck and it has given me years of unwavering service, but this problem is going to drive me nuts!!!
Thanks in advance for the help.
Matt
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Joined: Aug 2002
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From: BC, Canada
If you clear the code you'll get a P1000 code until the onboard computer system sees all the sensors working correctly or until it sets another trouble code. It constantly monitors them as you drive.
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Joined: Jan 2004
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From: St Louis
A lot depends on what you're calling the "state inspection". Since you didn't identify what state you're in or what type of inspection is being done, I'll assume it's an emissions inspection via OBD-II code check.
You will have to fix the original problem which, it appears, you've been throwing parts at instead of diagnosing it.
Your buddy either got lucky and happened to have it tested before it failed again or he's full of it. If you reset the PCM, it will take several (at least)drive cycles to run all the tests and clear the P1000 code. If you present at the emissions testing station with a P1000 code, you will be rejected.
Steve
You will have to fix the original problem which, it appears, you've been throwing parts at instead of diagnosing it.
Your buddy either got lucky and happened to have it tested before it failed again or he's full of it. If you reset the PCM, it will take several (at least)drive cycles to run all the tests and clear the P1000 code. If you present at the emissions testing station with a P1000 code, you will be rejected.
Steve
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Joined: May 2002
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If your still setting a code for an EGR problem, the truck will not pass. If your getting an excessive EGR Flow, you might need to replace the EGR vacume solinoid, it looks like a small black plastic trash can. It may be letting vacume flow to the egr valve all the time, which it should not, and thus we get an excessive flow code. You said you replaced the DPFE SENSOR, with the two 1/2 rubber lines and electrical conector?
Once you clear the codes, you will get the P1000 CODE. Like the others said you will just have to drive the truck a while to reset the IM-Moniters. In our state of NC, you may have two not ready IM-Moniters not set on your year of truck and still pass, as long as there is no check engine light, or problem code like a o2 sensor or egr problem. good luck
Dave P
Once you clear the codes, you will get the P1000 CODE. Like the others said you will just have to drive the truck a while to reset the IM-Moniters. In our state of NC, you may have two not ready IM-Moniters not set on your year of truck and still pass, as long as there is no check engine light, or problem code like a o2 sensor or egr problem. good luck
Dave P
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Thanks guys,
I decidecd that i would try and see what happened. I disconected the neg terminal to reset the system, drove 2.2 miles to the Kwik Kar with the check engine light off. It was off when I parked it and gave them the keys. They told me I had to replace my gas cap, but other than that, it passed. When I got back in, the light was on again. I don't know. What I do know is I now have a pleanty of time to fix the issue.
Steve, I'm in Texas. The question didn't involve my state, but the code. I did abreviate the story some so saying that I have just been "throwing parts at it" is a bit unfair. I admit that I'm no mechanic, but I have had several very talented mechanics help with this issue. Again, I thank you, though, for your input.
Matt
I decidecd that i would try and see what happened. I disconected the neg terminal to reset the system, drove 2.2 miles to the Kwik Kar with the check engine light off. It was off when I parked it and gave them the keys. They told me I had to replace my gas cap, but other than that, it passed. When I got back in, the light was on again. I don't know. What I do know is I now have a pleanty of time to fix the issue.
Steve, I'm in Texas. The question didn't involve my state, but the code. I did abreviate the story some so saying that I have just been "throwing parts at it" is a bit unfair. I admit that I'm no mechanic, but I have had several very talented mechanics help with this issue. Again, I thank you, though, for your input.
Matt
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