flat spot

Questions specifically about a Petrol powered Citroen C3 (usually engine or fuel related problems).
Forum rules
One question per topic.
Petrol engine related faults, like injectors, error codes, overheating.
You can post more topics if necessary, but only one question per topic.
My Name: rivvitt

Contributor
Posts: 12
Joined: Fri May 18, 2018 11:46 am
Model: C3 2013-2017 Facelift A51
Year: 2014 (14)
Engine Size: NA
Fuel Type: Petrol
Mileage: 33300
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: EB0 PureTech 3-Cylinder (68 PS)
Has thanked: 3 times

Post

2014, 1.0 68 vtr vti, C3, 35000 miles
when cold pulls great, when hot it hesitates
new crank sensor, cam sensor (x2), coils, vvt solenoids (x2)
second hand, throttle pedal+air intake
still no good when hot, once over the hesitant bit it runs great, 80mpg at 50mph
any ideas, my next move will be the ecu, just thought i would ask
thanks...Danny
My Name: Citroen-Driver

C3 Master
Posts: 212
Joined: Mon Dec 18, 2017 12:10 am
Model: C3 Pluriel - with or without roof
Year: 2003 (53)
Engine Size: 1.6 (16v)
Fuel Type: Petrol
Mileage: 30000
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: ET3 16-valve (90 PS)
Has thanked: 35 times
Been thanked: 38 times

Post

rivvitt wrote: Mon Aug 19, 2019 10:14 am 2014, 1.0 68 vtr vti, C3, 35000 miles
when cold pulls great, when hot it hesitates
new crank sensor, cam sensor (x2), coils, vvt solenoids (x2)
second hand, throttle pedal+air intake
still no good when hot, once over the hesitant bit it runs great, 80mpg at 50mph
any ideas, my next move will be the ecu, just thought i would ask
thanks...Danny
Try replacing the temperature sensor.

The sensor feeds ECU temperature info that affects fuelling (or not in your case)


It doesn't sound like throttle pedal, crank, cam sensor.
My Name: rivvitt

Contributor
Posts: 12
Joined: Fri May 18, 2018 11:46 am
Model: C3 2013-2017 Facelift A51
Year: 2014 (14)
Engine Size: NA
Fuel Type: Petrol
Mileage: 33300
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: EB0 PureTech 3-Cylinder (68 PS)
Has thanked: 3 times

Post

Citroen-Driver wrote: Mon Aug 19, 2019 11:27 pm
rivvitt wrote: Mon Aug 19, 2019 10:14 am 2014, 1.0 68 vtr vti, C3, 35000 miles
when cold pulls great, when hot it hesitates
new crank sensor, cam sensor (x2), coils, vvt solenoids (x2)
second hand, throttle pedal+air intake
still no good when hot, once over the hesitant bit it runs great, 80mpg at 50mph
any ideas, my next move will be the ecu, just thought i would ask
thanks...Danny
Try replacing the temperature sensor.

The sensor feeds ECU temperature info that affects fuelling (or not in your case)


It doesn't sound like throttle pedal, crank, cam sensor.
i can probably find it ok, but do you know exactly where it is?
My Name: Citroen-Driver

C3 Master
Posts: 212
Joined: Mon Dec 18, 2017 12:10 am
Model: C3 Pluriel - with or without roof
Year: 2003 (53)
Engine Size: 1.6 (16v)
Fuel Type: Petrol
Mileage: 30000
Trim Level: VTR+
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: ET3 16-valve (90 PS)
Has thanked: 35 times
Been thanked: 38 times

Post

Number 5 is the engine coolant temperature sensor on the C3 1.0 i VTi 68 (EB0F)
Citroen C3 coolant temperature sensor location
Citroen C3 coolant temperature sensor location
part number is 96 703 403 80 (available here)
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