Join Date: Jun 2008
Location: Brampton, Ontario, Canada
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The easiest way I can think of to direct you to fixing this issue is to give you my own personal experience with the fixes when P2262 has set for me.
First step is to check the MAP sensor hose for air leaks or cracks. Second step is to ensure your MAP, BARO and EBP readings are all within 0.3 psi of each other (around 14.3) at key-on/engine-off. This will require use of a scan tool that can read live data.
If your MAP or EBP readings are way out, the first step is to repair as necessary, whether it's the sensor itself, or the circuit.
What happens when you rev the engine with the accelerator pedal to the floor in PARK or NEUTRAL? Will it rev to 3800 to 4200 RPM, and maintain that engine speed? If not, disconnect the downpipe from the CAT (two 15mm nuts), and run the engine or drive it. Do you now have boost when you drive it, or run it with the downpipe disconnected from the CAT?
What I'm driving at here, is to start with some simple tests, before you jump the gun to the turbo like I've seen too many guys doing.
I had one truck, an E-350 van that showed up on my doorstep that had absolutely NO BOOST. This truck had just had a new turbo and VGT replaced (RETAIL) at another dealer two weeks prior to landing in my hands, that took me all of ten minutes to determine the CAT was plugged. The question that lingered in my mind was how the dealer was able to explain the misdiagnosis, let alone releasing the vehicle in that condition UNREPAIRED.
Another E-Series that ended up in my hands from an independent "garage" the guy dropped off with the expectation that I was going to replace the turbo under warranty, took me all of five minutes to figure out the air filter was restricted. The restrictor gauge was bottomed out. Removing the air filter (an aftermarket cheapie that was "Made In China") was all it took to fix the proeblem!!!
The moral of the story is, CHECK THE BASICS, CHECK THE BASICS, CHECK THE BASICS. Just like the "KISS" rule. I'm sure most of you fine gentlemen know that one. I pass this on to you for what it's worth.
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Ford Diesel/Senior/Master Tech who placed 2nd overall in Ontario on the Fix-It-Right-First-Visit score for 2010
....who works at a dealership that now employs SOME half decent looking female employees since they overhauled most of the administrative staff
....but STILL loves hot women with big boobies
....and STILL hates working on E-Series with 6.0L