The Mégane II Owners' Club

hi all,im stressed got a 2002 1.6-16v starts fine runs for bout 20 seconds and cuts out keeps doing this until warmed up then it will tickover but runs rough.ave put new battery on, changed tdc sensor and coolant temp sensor can anyone help

hi mate does the engine rattle as well ? if so sounds like the dephaser pully had the same problem with mine 12

hi mate, no it doesnt appear to rattle,pretty quiet.No ecu light either.

Maybe coil/s. That could account for rough running and cutting out.

Throttle body... remove it, clean it, refit it and I bet your problem is solved.

Mick

cleaned throttle body allthough it wasnt really dirty.stil the same

Use OBD. Read the fault codes first, then record and plot the live parameters when replicating the fault. Post the plots here for discussion.

as far as i understand there will be no fault on the OBD scanner, the engine simply goes out...

the problem stops when its warm, something related with the car temperature can cause the fault.

did you serviced the car recently?

Keep guessing then...

If it is something temperature-related, then it will show on the live diagrams. It doesn't need the temperature itself, but a relationship between various parameters.

I strongly advise to use OBD, and not just to scan for fault codes!

yes, in that terms i agree, like Alex told life data can give good info on whats is going on. do you have a obd scanner?

Live Data from a generic EODB scanner will be very limited and I doubt you'll see anything regarding the IAC with Mode7 data... deffo needs a proper session though.

Mick

An Idle Air Control fault is actually diagnosed with OBD. It will show as low calculated load plus revs hunting while everything else being consistent...