rapand0
New Member
- Thread starter
- #1
Hi
Given that I just spent 15K for a completely new engine and turbocharger that now is giving too much pressure and for some obscure reason me and Ford dealer can't do the "learn VGT sensor adaptation" procedure and they (Ford) don't even know why, I might found by my self what is the reason and It could be that the MAF sensor (wich I already changed) is reading air mass flowing even when engine is shut off and high values at idle for what I've been reading online.
So, I'd highly appreciate if someone could check on their Ranger T7 (2.2L puma engine) what are the following MAF values with engine shut off and idling.
The sensor is a frequency operating one and also has the temperature resistor exposed.
Reading at KOER:
While at KOEO shows 2,77 g/s and around 750 Hz while temperature is coherent with the MAP temperature value.
^^^ "Vehicle conditions are incorrect" I suspect means that Forscan is detecting airflow and will not initiate the service procedure.
I came to this conclusion beacuse I noticed the turbo stays with the vanes of the VGT almost fully closed at idle producing overboost and a strange whine I never heard before, while If I move the vanes towards 0 (doesn't go below 19.60 %) using Forscan control function the pressure goes equal to BARO and the whine disappears, also fiddling with the MAF values moves the VGT at idle so I'm pretty sure these are related to why I get P0234 DTC shown here.
Given that I just spent 15K for a completely new engine and turbocharger that now is giving too much pressure and for some obscure reason me and Ford dealer can't do the "learn VGT sensor adaptation" procedure and they (Ford) don't even know why, I might found by my self what is the reason and It could be that the MAF sensor (wich I already changed) is reading air mass flowing even when engine is shut off and high values at idle for what I've been reading online.
So, I'd highly appreciate if someone could check on their Ranger T7 (2.2L puma engine) what are the following MAF values with engine shut off and idling.
The sensor is a frequency operating one and also has the temperature resistor exposed.
Reading at KOER:
While at KOEO shows 2,77 g/s and around 750 Hz while temperature is coherent with the MAP temperature value.
^^^ "Vehicle conditions are incorrect" I suspect means that Forscan is detecting airflow and will not initiate the service procedure.
I came to this conclusion beacuse I noticed the turbo stays with the vanes of the VGT almost fully closed at idle producing overboost and a strange whine I never heard before, while If I move the vanes towards 0 (doesn't go below 19.60 %) using Forscan control function the pressure goes equal to BARO and the whine disappears, also fiddling with the MAF values moves the VGT at idle so I'm pretty sure these are related to why I get P0234 DTC shown here.
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