P2101 P3010

[508c5]

Hello,

I have these two codes pop up every now and then (and car goes into limp mode). How likely is this a result of a malfunctioned throttle body rather then electric harness or BSI ?

After clearing the codes the car comes back to life and it takes days or weeks before the faults pop up again

P2101 - control of the motorized throttle motor overheating or overpowering
P3010 - Motorized throttle motor control fault Regulation fault.

Peugeot 508, 1.6L PETROL, 156BHP, 222000km.

Thx

[FishHo]

My personal take... 5% harness, 95% throttle body, and pretty much 0% its the BSI

[GiveMeABreak]

The BSI won't have anything to do with it, but the engine ECU will - as it is this that will put the engine into downgrade mode whilst the faults are active.

So If you've checked the electrical connections / power, then the common factor is the motorised throttle body as FishHo suggested.

Fault Code:	P2101
Description of Fault:	Control of the motorised throttle motor: Overheating or excess current. Possibility 1: Detection of an excessive consumption of current on the motorised throttle housing control stage Possibility 2: Overheating on the control part of the motorised throttle housing Conditions of activation of the diagnostics: Engine management ECU in main triggering phase.
Conditions for Fault to clear:	The following conditions have to be met (For at least 12 seconds) - engine running - No motorised throttle housing programming in progress - Motorised throttle housing power stage not cut
Downgrade Modes whilst Fault is active:	Limitation of engine speed Cutting of the injection if the engine speed goes above maximum Deactivating the cruise control Test of the springs, programming and anti-icing strategy deactivated Natural opening position of the motorised throttle housing Cut in the injection carried out if the actual fill in air of a cylinder is above the reference fill Deactivation of the turbo Inlet camshaft dephaser deactivated For a gearbox with engine speed regulation (automatic gearbox or piloted manual gearbox), limitation of the torque sent to the gearbox Air conditioning cut-off Deactivation of the motorised throttle housing actuator test
Symptoms:	Starting difficult Unstable idling Idle speed too high Lack of power Engine hesitation Without any butterfly fault, no customer impact
Suspect Areas:	Engine ECU Motorised throttle housing Electrical harness

Fault Code:	P3010
Description of Fault:	Motorised throttle motor control: Regulation fault. The required butterfly position cannot be attained: Maximum variation (For more than 5 s). Conditions of activation of the diagnostics The following conditions have to be met: - Engine management ECU in main triggering phase - Activated as soon as the butterfly is supplied
Conditions for Fault to clear:	The following conditions have to be met (Return to the permitted operating ranges) - engine running - Unit initialisation not active - Confirmation time 12 s
Downgrade Modes whilst Fault is active:	Natural opening position of the motorised throttle housing Cut in the injection when the engine speed goes above the maximum engine speed Deactivation of the cruise control For a gearbox with engine speed regulation (automatic gearbox or piloted manual gearbox), limitation of the torque sent to the gearbox Air conditioning cut-off
Symptoms:	Starting difficult Unstable idling Idle speed too high Lack of power Engine hesitation
Suspect Areas:	Motorised throttle unit Electrical harness

[508c5]

Thx

I see that the ECU may also be a "suspect" , is this likely?

[GiveMeABreak]

It's listed as it's a possibility - but I can't tell you that on a Forum - at least you have some points to investigate.

[508c5]

thanks

today another fault popped up - P061F - motorized throttle motor control fault coherence - does this shed some more light...?

[GiveMeABreak]

With that latest fault code it is certainly pointing towards the motorised throttle:

Fault Code:	P061F
Description of Fault:	Motorised throttle motor control: Coherence. The open cycle ratio exceeds the thresholds: 80% in the opening phase of the throttle and - 80% in the closing phase of the throttle, for 0,6 s. Conditions of activation of the diagnostics The following conditions have to be met: - Engine management ECU in main triggering phase - Battery voltage more than 8 V - Not in initialisation phase - Throttle active
Conditions for Fault to clear:	The following conditions have to be met: - Switch the ignition off and then on again - The open cycle ratio stays within the range (-80% ; 80%) - engine running - Motorised throttle valve programming
Downgrade Modes whilst Fault is active:	Natural opening position of the motorised throttle housing
Symptoms:	Stalling at idle Engine hesitation Cutting out under load Flat spot on acceleration Lack of power
Suspect Areas:	Motorised throttle unit Electrical harness

[508c5]

replaced the throttle body and for over a week no fault has popped up, we'll see