2007 Ironman edition dang TBI troubles

[houstad]

Thank you all for reading. I have been going through the forums for weeks now.

Originally got the code (I don't remember.) and was lead to replace the EGR valve. So I did. That code went away and a code for (again I didn't write it down ) to replace the "High fuel sensor" So I did and that code cleared. Of course to get to it I had to remove the intake manifold and replaced with new gaskets. Since I had it all apart I also fixed a leaky valve cover on the passenger side since I was there I just replaced the drivers side also. I put it all back together and all code hell broke loose. I was getting so many codes and the SUV went into limp mode. The biggest code at that time was the MAP sensor code. I replaced that and that code cleared. Now I am stuck with 2110,2111,2101,2104,2106.

I have tried the clearing of the PCM with removing the negative and clip the +Pos and -Neg for 5-10 minutes and it worked once and now it will not clear any more. I took a close look at the clips and harness and had seen the dreaded corroded and flaking wires. I have gone through them all and re-tapped and added new heat shield to all I could find.

It seems all these codes are related to the TBI. I have replaced the throttle body twice and the TPS 3 times. and I am unable to get the thing to run right or out of limp mode. Nor can I reset the PCM to get a fresh start. Granted I have gone to Pick and Pull for these parts. I am learning about using the DMM to test the sensors and I am working on it.

 

[Fix4Dirt]

tbi? theottle body i jection? hows the motor that controls the theottle body? if you cant reset pcm thats fishy... have tou tried disconnecting negative for a while?

 

[96eb96]

Thank you all for reading. I have been going through the forums for weeks now.

Originally got the code (I don't remember.) and was lead to replace the EGR valve. So I did. That code went away and a code for (again I didn't write it down ) to replace the "High fuel sensor" So I did and that code cleared. Of course to get to it I had to remove the intake manifold and replaced with new gaskets. Since I had it all apart I also fixed a leaky valve cover on the passenger side since I was there I just replaced the drivers side also. I put it all back together and all code hell broke loose. I was getting so many codes and the SUV went into limp mode. The biggest code at that time was the MAP sensor code. I replaced that and that code cleared. Now I am stuck with 2110,2111,2101,2104,2106.

I have tried the clearing of the PCM with removing the negative and clip the +Pos and -Neg for 5-10 minutes and it worked once and now it will not clear any more. I took a close look at the clips and harness and had seen the dreaded corroded and flaking wires. I have gone through them all and re-tapped and added new heat shield to all I could find.

It seems all these codes are related to the TBI. I have replaced the throttle body twice and the TPS 3 times. and I am unable to get the thing to run right or out of limp mode. Nor can I reset the PCM to get a fresh start. Granted I have gone to Pick and Pull for these parts. I am learning about using the DMM to test the sensors and I am working on it.

This is a parts cannon approach. It is unlikely parts are bad. You may need a scope on some wires to see what is going on. But like I posted in other threads multiple codes on these trucks do happen. It is most likely wiring related. A truck I looked at had 11 codes, all the heated 02 sensors, TB, other stuff too. All on the same circuit. It was out of state, the salesman said tell me what to do. I told him to check the fuse. He replaced it and the codes came right back (He didn't know if it was blown). Could be a bad pcm too if wires cause shorts and feedback.

 

[94Eddie]

If all these codes showed up after removing and replacing the intake then I would first think that something didn't go right with the reassembly.

 

[houstad]

The wiring harness was so brittle it had wires all over just not connecting related to the TBI. I had a retired Ford mechanic come over and hook his super pc to the SUV. I ended up wiring the to plugs on each of the TBI direct to the wires coming out of the TBI. Fired right up no codes and worked like a champ.