EDIT: This is in the 156 V6..
OK, I drove to Manchester today, checked all fluids and what-not first, did 100 miles of motorway, all OK. Stopped at a few places, town centre, Wilmslow Road for tea, then went to Trafford centre.. Upon starting the car and leaving the carpark after a final bit of shopping, I notice my injector light is on. The car is unwilling to rev from tickover (800rpm as engine just over 50 C on startup) but once it passed 2,500rpm or so the engine came slowly back to life, almost like massive turbo lag, except even in neutral. I circle the roundabout and go back into the carpark. First thoughts are MAF but it was all of a sudden, without warning, and it is bad at low revs but fine at high revs, normally MAF failure is the other way around..
I pulled back into a bay and opened the bonnet. Disconnected the battery for 20 mins to reset the ECU and disconnected the MAF, to see if it is any better. Before restarting the car I also complete the throttle position reset (on MAR1 for 90s, off for 90s, startup and let idle for 15m). The idle is dodgy, going from 900rpm to about 500rpm and then back, as in engine about to stall, ECU gives it some throttle, revs rise to 900rpm, then back down to 500rpm and start again.. Idle is normally flat and unmoving at 800rpm when warm. It did seem to settle a little over the 15 minutes, and then on driving it it felt a bit better. A lot less "turbo lag" but it didn't feel nippy or responsive on the accelerator (as I expected with no MAF). Approaching the roundabout, I braked to stop and the car stalled
Started back up first time, but would do this 'stalling' thing everytime I braked to a stop while in gear. I did 5 miles, eventually putting it into neutral long before I wanted to stop, giving it plenty of gas with the right foot and braking with the left..
After 5 miles I thought sod this, pulled over and turned off. About to give up, I plugged MAF back in, and voila! Instant, crisp throttle response, no 'turbo lag', and ooodles of power. It feels like the car has more power than it ever has had!! (
Can anyone explain what might have caused this? It ran fine on the journey back from Manchester to York, just got in now and need answers, if anyone has a theory..