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post #1 of 2 Old 06-19-2013, 06:45 AM Thread Starter
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codes are:
p0069 map/baro correlation
p0470 ebp sensor ??
p0471 ebp ??

i have cleaned ebp sensor and hose. map sensor and hose.

i dont have access to a real monitor. I'd hate to waste 170-180 replacing ebp and map sensors. EBP seams to be a common possibility between the three. suggestions?

ps at the shop the said the vanes stuck at first test drive and blew the boot. could this have messed up sensors or the vanes still sticking alittle.

2006 Ford Powerstroke Super Cab 4x4 auto 120K bulletproofed

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post #2 of 2 Old 06-19-2013, 07:26 AM
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The p 470 and p471 are your exhaust back pressure sensor which you obviously know. If the sensor is dirty ot gone bad it will cause the truck to do all sorts of weird things. For example you could be driving along and all of a sudden lose power. Reaaon beinf that sensor reads the back pressure in the manifold . So when that sensor dosent read the pressure correctly it can tell the turbo to shut of making you lose power and the truck wont shift or run right. Or it can send the turbo into a frenzy making it put out maximum boost making it overboast causing it to blow of the turbo lines or worse. Fix solution: buy a new ebp sensor. New tube fittings if they are clogged. Clear codes and drive to see what it does.
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