2 of them News to meSkooter wrote:1401- EGR DPFE Sensor..........................................Ignore
P1402 - EGR Position sensor....................................Ignore
P1184 - PDS2 Circuit low. Pedal demand sensor.............replace or repair (as you have)
P0401 - EGR Flow insufficient. Exhaust gas recirculation...Ignore
P1170 - Engine shut off malfunction............................Check plug connections at rear of pump for backing off and corrosion
I have replaced the DPFE sensor DPFE
I'm pretty sure the problem lies with the Fuel shut off solenoids, there are 2 of them, so which one is
faulty I'm not sure.
Andyg wrote:Welcome2 of them News to meSkooter wrote:1401- EGR DPFE Sensor..........................................Ignore
P1402 - EGR Position sensor....................................Ignore
P1184 - PDS2 Circuit low. Pedal demand sensor.............replace or repair (as you have)
P0401 - EGR Flow insufficient. Exhaust gas recirculation...Ignore
P1170 - Engine shut off malfunction............................Check plug connections at rear of pump for backing off and corrosion
I have replaced the DPFE sensor DPFE
I'm pretty sure the problem lies with the Fuel shut off solenoids, there are 2 of them, so which one is
faulty I'm not sure.
Check the resistance of the ESOS (electronic stop solenoid) with a meter across pins 2 and 3 on the back of the pump
The resistance should be between 1 and 3 ohms
This diagram should help
The grey around two of the terminals are your calibration resister terminals and should help you locate the correct pins when checking with a small mirror
Skooter wrote:DPFE refers to "Delta Pressure Feedback of EGR" this sensor is supposed to measure the EGR flow by measuring the pressure differential across a fixed orifice. It appears that they have a reputation for being unreliable.
Andyg wrote:Skooter wrote:DPFE refers to "Delta Pressure Feedback of EGR" this sensor is supposed to measure the EGR flow by measuring the pressure differential across a fixed orifice. It appears that they have a reputation for being unreliable.
Nope
Doesn't work that way
We have a vacuum regulator bolted behind a black plate fixed to the scuttle panel (controlled by the ECU via a pulse width modulated current)
The ECU controls the amount of vacuum from the data it receives from various components, of which include the temperature of the engine, accelerator position (fueling demand) and of course the EGR valve it's self
The EGR valve actually sends it's varying position back to the ECU which then calculates just how much more or less vacuum is required, in order to keep it inside the pre determined map
Hope I've explained it okay
Andyg wrote:Only this, I'm afraid
viewtopic.php?f=31&t=10236
And colour photos one day, when mine packs up
Andyg wrote::idea: There could be debris stopping the plunger from working
Have you tried removing and cleaning the ESOS
Skooter wrote:Andyroo
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