Originally Posted by Jaxonvankoevering
I replaced whatever parts my code reader put out, each time I put in a new one another code popped up. And my pigtails were on there way out anyway they had bare wires. But I’m just gonna bring it in because it’s starting to get over my head. Thanks for your time and advise
Unfortunately it doesn't really work that way.
For example cam and crank codes can come from stall events or from crank-no-starts, and not the sensor itself. That is why I ask for data, to help wade through the information. It isn't easy sometimes.
ICP VOLTS are important so that we can make sure that the PCM is actually using the ICP sensor signal. Sometimes it "assumes" a value and you get a false ICP pressure. This can mask an issue in the high pressure oil system.
The data I asked for is really not hard to get. Determining where the source of the problem is takes "stepping back" and looking at all of the information. Injector problems can be particularly hard to identify (and they are expensive(, and it takes quite a bit of testing before confirming that that $2k has to be spent. As stated SEVERAL times, low fuel pressure can be the root cause of injector failure. Who wants to replace injectors, only to have to do it again in 5k or 10k miles.
Definitely bare wires should be fixed. That said, the wires to the cam and crank sensors are shielded wires. You can't just splice in new wire without also replacing the shielding.
If you don't stick w/ OEM sensors, then you MIGHT make troubleshooting harder, I have seen many aftermarket sensors be bad out of the box. It certainly isn't every one of them, but the percentage is high enough to be a likely problem for anyone going that direction.
Also, the FICM is a weak component, but simply replacing (even w/ an OEM rebuild) is throwing money away. There are a few rebuilders who actually turn out a product that will last. That said, the main causes for FICMs are weak alternators or bad batteries.
When you take it in, make sure you find a shop w/ a good reputation. The 6.0L is a favorite of unscrupulous shops because of its reputation.