Technical throttle issue

[puntoguy22]

2014 1.2 punto 69hp petrol model.. fault codes p0101 and p0106 showing up with engine fault light. 11000 miles only on the clock.

The engine seems to run ok then at idle (at a junction say),the revs climb and fall back and the car does not respond to the throttle. If ignition is turned off and then engine is restarted, the throttle responds ok.
Both the MAP sensor and the throttle body inclding position sensor have been replaced but the fault recurs.
Any ideas as I'm stumped!

 

[AndyRKett]

Holes or issues with the pipework on the induction side?
You could also have a wiring or earth problem affecting the outputs of the sensors.

Fault codes point to the area but they don’t actually tell you what’s wrong you may need to plug the car in and monitor the output of the sensors to know what is then triggering the codes. Could be intermittent blips in the readings caused by a bad wire