Peugeot 407 2.2l 3FY code ECU pinout diagram

[briansib]

Hallo mates,
im looking for ECU pinout and schematic diagram for my Peugeot 407 2.2l petrol engine, a year 2002 model The cant rev above 2000 -2500 revs and we tried changing throttle bodies, checked leaks etc but haven't won so far. Also tested reference voltages on throttle connector Pin 3 and Pin 5 against battery negative, getting 12.5v on Pin 3 and 5.01v on Pin 5, not sure if this will be helpful, any one can assist first with ECU diagram and advices.

[Paul-R]

Have you done any readings with a decent diagnostic machine, preferably Diagbox?

[briansib]

have used a generic one and its picked P1622 last time

[Paul-R]

What description came with the code?

[PaulC5]

A search on P1622 suggests it is manufacturer specific for different makes so can mean different things. Against Peugeot it suggests a mismatch between the throttle position and MAP sensor. Have you checked the MAP sensor live data pressure values with your code reader to see if they are realistic - if not possibly the MAP sensor is faulty ?

[briansib]

let me do another scan tomorrow and let you know what comes out, lost the picture that has detail. One that i still have shows at idle Manifold pressure is around 312 mbar and at full throttle its hitting around 840 mbar with throttle angle around 83 deg

[briansib]

also if i flat foot the pedal when stationery theres a brrrrr sound thats comes from the throttle body, even if its opening, and the engine feels weak and comes to fluctuate around 1900 - 2000 revs, wish i could send the a small video of the sound

[briansib]

does anyone have ECU and wiring schematic diagram, just to test and rule out a issues to do with continuity, values etc