computer reset
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Laughing Gas
Joined: May 2009
Posts: 753
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From: Mesa,AZ
computer reset
I have a 99 ford ranger 2.5l, had a code p1401, so replaced the dpfe valve and while doing so found a broken wire on connector to it. So replaced the pigtail for it. Now I have no codes but when I went to emissions after repair it said it was not ready. I drove it around doing errands one day then drove it down the freeway approximately 20 miles each way. Went to emissions and still said not ready. Does anyone know what I have to do to get it through emissions. Thanks in advance for any advice.
Postmaster
Joined: Oct 2003
Posts: 4,516
Likes: 1
From: SoCal
I dont know if yours is one of them, but on some Fords the Keep alive memory & horn are wired to the same fuse. See if your horn works.
If the KAM isnt powered the settings are wiped clean everytime the key is turned off.
When i had this problem with my 97 Explorer i replaced the blown horn/KAM fuse & drove it a couple days, then passed Cal. emissions no problem.
If the KAM isnt powered the settings are wiped clean everytime the key is turned off.
When i had this problem with my 97 Explorer i replaced the blown horn/KAM fuse & drove it a couple days, then passed Cal. emissions no problem.
Logistics Pro
Joined: Jan 2002
Posts: 4,907
Likes: 39
From: suburban atlanta
I think you need to complete the 'drive cycle', which includes stops, shutdowns, idle periods, acceleration to freeway speeds, slow downs, etc etc etc.
Most techs have figured out a 'route' near their workplace that will exercise all the required sequences. Some will give hints or directions to fulfill the requirements.
Just drive some more, take some short shopping trips, and a bit of freeway, and add in some 'town' driving at lower speeds, with 'stop signs' interspersed. It is kind of a pain.
tom
Most techs have figured out a 'route' near their workplace that will exercise all the required sequences. Some will give hints or directions to fulfill the requirements.
Just drive some more, take some short shopping trips, and a bit of freeway, and add in some 'town' driving at lower speeds, with 'stop signs' interspersed. It is kind of a pain.
tom
Moderator
Joined: Jan 2004
Posts: 13,851
Likes: 111
From: SW Va
Have a read through this thread https://www.ford-trucks.com/forums/1...l#post15810549 & down in post 8 I have a link to the lengthily Ford emissions reset drive cycle routine. Let us know how it goes.
Postmaster
Joined: Oct 2003
Posts: 4,516
Likes: 1
From: SoCal
I just took a quick look online and I see that yours is wired different the horn is on fuse 10.
The PCM KAM is the only thing wired to mini fuse 6.
If driving it more does'nt reset the monitors be sure that fuse 6 is not blown. It's under the hood in the battery junction box.
The PCM KAM is the only thing wired to mini fuse 6.
If driving it more does'nt reset the monitors be sure that fuse 6 is not blown. It's under the hood in the battery junction box.
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