I have a 2000 f150 v8 4.6l. and I keep getting the same 7 codes I have changed out the sensors for the codes and they keep reappearing. I was told possible ecm going bad. All the codes are p0 codes also. Should I order a ecm and change it out.. any suggestions please

 

What code are you getting?
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Codes for throttle position sensor. transmission range sensor. Mass air flow . Cylinder head hear sensor. Intake air control sensor. Things like that kinda all over the place

 

Ford taught me in class to diagnose the very first code then work on the others if they still exist after fixing it. Because most times fixing that first code cures all of the following codes.

if you want my help to try and diagnose your concern, post the very first code you get when scanning.

I don't want you to tell me it's a TP sensor, or MAF sensor, or O2 sensor code, I need you to tell me the CODE ITSELF, Pxxx etc...... We'll go from there.
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The codes in order are as follows p0340. P0113. p0118. P01289..p0123. p0453. P0708. These codes only pop up when my cluster goes crazy. Like oil light comes on mph drops to zero. Rpm go to 2000. Temperature light goes to cold. And OD light flashes. While driving. When I stop it goes back to normal and I drive fine just with check engine light on.

 

Ahh now we get the whole story. Before anything is changed disconnect the pcm connector and look for corroded or pushed out pins in the harness, also check the pcm pins for corrosion.
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Keep in mind I have changed all of these sensors.. like a dog chasing my tail. Ugh

 

Ok great thank you that's my next step then I was just told it was a bad pcm.. or going bad. Just wanted second opinion before I bought one of those.

 

So if I get a pcm already flashed do I have to have. Locksmith out for the anti theft . Or is that in the colomn of the truck.

 

It could be but I can count on one hand how many Ford pcm's I changed in 11 years at the dealer. Very rare. Usually a corroded pin/harness connector. If you don't see any pushed out pins or corrosion, connect/disconnect a few times. That usually works.
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