Question about Ford Cars & Trucks
I just installed a new DPFE Unit, which includes the MAP Sensor, so the sensor should be fine. The car starts but you can hear and feel that its not running fine. no dashlights tho, just read the codes with the OBD reader When you put in the Driving gear/putting it under load, it will stall and lack power. It will accelerate if you throttle less than aprox. 20%, if you throttle more it will lack all power.
P0108 - Barometric Pressure/Manifold Absolute Pressure (BARO/MAP) Sensor High Voltage Detected
Sensor operating voltage is greater than 5 volts (VREF). As a result it failed above the maximum allowable calibrated parameter.
The PID reading is in frequency/volts. Application Key On Engine Off Key On Engine Running Continuous Memory Vehicles with an EGR system module (ESM) GO to DM1 GO to DM1 GO to DM13 All others GO to DM16 GO to DM16 GO to DM22
Circuit problem .Not sensor .
P0401 - Exhaust Gas Recirculation (EGR) Flow Insufficient Detected Description: The EGR system is monitored during steady state driving conditions while the EGR is commanded on. The test fails when the signal from the differential pressure feedback EGR (DPFEGR) sensor indicates that EGR flow is less than the desired minimum. Possible Causes:
Clogged catalytic converter ?
Posted on Jan 15, 2019
Testimonial: "Thank you for responding, I don't understand: "Vehicles with an EGR system module (ESM) GO to DM1 GO to DM1 GO to DM13 All others GO to DM16 GO to DM16 GO to DM22 " everything else will check today as far as possible!"
Remove you EGR valve and check for blockage inside the intake or EGR orifice tube going back to the exhaust...with EGR valve removed you can try blowing both direction ans see if there is any blockage.
DPFE sensor is an engine component that monitors the amount of emissions that are sent back in the combustion system then communicates with the powertrain control module.
If the DPFE determines not enough air flow (blockage or EGR stuck close) or to much flow (EGR stock open) it will throw a code.
Posted on Feb 09, 2019
Clean your egr valve
Posted on Feb 09, 2019
It sounds likely that the diaphram in the egr alve has gone bad and is creating a vaccume leak.
Posted on Jan 16, 2019
Testimonial: "Thanks for response! I just installed a new dpfe unit which includes the egr valve, so that shouldn't be the problem."
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Posted on Jan 02, 2017
i would check fuel supply, volume adn pressure, i wold also look at the MAF sensor hot wire to see if it has a little chia pet growing on it.
Posted on Dec 13, 2008
RPM's up and down check EGR valve and sensor. EGR valve and sensor control idle. That's why your getting the surging on rpm's and this could be giving out the other codes. If mass flow was bad car will not start and the same for the map sensor. O2 sensor measures gas and air for right mixer. TPS controls 0-60 speed as in throttle respons.
Posted on Apr 28, 2009
Get a timing light and check it.If the mark is jumping all over the place, your belt has jumped a cog and will need to be replaced.
Posted on Jul 20, 2009
Sounds like you have a vacuum leak, a problem with the wiring, or a bad PCM. Check wiring for pinched, chafed, pierced, or broken wires. Make sure vacuum supply is good, and not collapsing when the vehicle is running. Beyond that, a trip to the dealer may be in order.
Posted on Jul 22, 2009
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