heater circuit

[col72]

had car to local garage about check injector light his computer come up with heater circuit cleared it told me to use it and see what happens anyone had this before

 

[MicKPM]

What car? Any symptoms?

 

[col72]

Clio 06 dci hesitation now and then starts great goes great just hesitation now and then put other post on here about it doing my head in now lol

 

[MicKPM]

Pre-heater circuit then... Possible but I've seen faulty EGR valves trigger this fault before to.