2013 Vauxhall Insignia ecoflex cdi
Engine tickover to fast 1000rpm

Avatar
john dale
Driver
1 points

Problem added: Sep 21, 2020 (1 month ago)
when indrive with tickouver at 1000rpm car runs away you have to keep touching the brake or dropping the clutch

Car details
Car: Vauxhall Insignia
Variant: ecoflex cdi
Model Year: 2013
Replies and Fixes
Avatar
whittingehame
Legend
15,389 points

Sep 21, 2020 (1 month ago)
Could be this .

Insignia 2009-Onwards
Increased idle speed



Customer complains of an increased idle speed up to 1150 rpm.

Increased idle speed signal is managed by the engine ECU but based on a signal coming from the BCM

(Body Control Module).

If the state of charge (SOC) for the battery is too low the BCM urges the engine ECU to increase idle

speed in order reload the battery in a proper way. There are three possible idle speed steps going from:

-- step 1 (= 925 rpm) to

-- step 2 (= 1000 rpm-1050 rpm) and

-- step 3 (= 1100 rpm-1150 rpm)

The step is dependent on the SOC as well as the outside temperature, which also affects the SOC.

Other possible reasons for increased idle speed also managed by the engine ECU based on a BCM

request:

a.) During auxiliary heater on the idle speed will be set to step 2.

b.) During HVAC operation the idle speed will be set to step1-3 based on the thermal load.

c.) During DPF regeneration mode the idle speed will be set to step1-3 based on the engine

requirements.

In case of customer complaint please explain this technical content to the customer.
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