Codes due to age?
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Senior User
Joined: Nov 2012
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Codes due to age?
So I had a previous thread where I was trying to figure why my truck has a rough idle. It is a 92 f150 4.9l with 20k miles. At first I thought it was the iac but when I pulled it looked almost new on the inside. My last thread I tried pulling codes but I was unsure if they were right so I borrowed a friends code reader and here is what I got.
Theses are all koeo
117
112
122
126
327
513
552
556
558
621
638
654
I know its alot and the two that stand out the most are the 122 and the 513 code. 122 is for the tps sensor which is new and the 513 is the ecm which I dont how that could go bad if the truck has barely been driven. So could this happen because the truck has sat for all those years? should I go through and try cleaning the connections to the sensors. I have no idea where to start.
Theses are all koeo
117
112
122
126
327
513
552
556
558
621
638
654
I know its alot and the two that stand out the most are the 122 and the 513 code. 122 is for the tps sensor which is new and the 513 is the ecm which I dont how that could go bad if the truck has barely been driven. So could this happen because the truck has sat for all those years? should I go through and try cleaning the connections to the sensors. I have no idea where to start.
Senior User
Joined: Oct 2010
Posts: 150
Likes: 1
From: Charleston SC
Not unheard of for PCM components to fail and give all those codes. There are a few guys here that have posted replies on threads that detailed info on what to check and how to repair your PCM.
Did you adjust the TPS for proper voltages at closed and fully opened? If so, start with your PCM with that many codes.
Did you adjust the TPS for proper voltages at closed and fully opened? If so, start with your PCM with that many codes.
Elder User
Joined: Dec 2003
Posts: 660
Likes: 3
From: Northern California
Not unheard of for PCM components to fail and give all those codes. There are a few guys here that have posted replies on threads that detailed info on what to check and how to repair your PCM.
Did you adjust the TPS for proper voltages at closed and fully opened? If so, start with your PCM with that many codes.
Did you adjust the TPS for proper voltages at closed and fully opened? If so, start with your PCM with that many codes.
Click this link: A9x ECM's (and same years ECM's) Failures Due to Age
Bob
Senior User
Joined: May 2013
Posts: 102
Likes: 2
Agreed, check your computer, I could post pictures of probably 10 different computers all with that same exact issue (bad capacitors). All the trucks at my local junkyard that still had computers, had computers with bad capacitors in them.
Also my truck had all those exact same codes when my computer had this issue.
Also my truck had all those exact same codes when my computer had this issue.
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