Help!!! With trouble codes

[mike55ihc]

So I have some of these codes before on my truck but I want to know how i can get them corrected so they don't show up? I know some of these are things that are caused by my modifications. I have it straight piped and stage 1 injectors with and edge programmer. Here are the codes as follows:

P0236 Turbo boost sensor a circuit performance

p0470 exhaust back pressure circuit malfunction

p1211 injector control press above/below desired

p1212 icp voltage not at expected level

What caused me to look at the truck today is my wife drove it into town and said when she went to start it when she went to leave the store it started real rough then died then started back up fine with the check engine light on??? WTF it's done this before but I don't remember what the problem was. In addition I went to see what it was doing it started right up and ran fine! I counldn't get it to do what it had done before so... Help me get the codes corrected and we will start there

[BigFuel]

If you clear the codes how long till they come back? Is there any leaking in the motor valley? Pull the PCM connector on the fire wall, clean and check for burned or damaged pins, reinstall and drive again.

[mike55ihc]

I replaced the hoses deep in the valley about 6 month ago then so no fuel now. I will cleared the codes and will drove it across town after work and still no codes?? I will pull the pcm connector on the firewall tomorrow. Starting to get dark and can't see well

Thanks

[BigFuel]

Diesel fuel is very bad to the wiring jackets. Melts it right off. May have to look back into your valley at the wiring to make sure there are no shorts.