156 1.8 TS engine troubles
Hi everyone. I'm looking for ideas as to what might be wrong with my wife's 1.8 TS. It's a 1999 car coming up to about 90,000 miles. it's on its original cat, airflow meter, lambda sensor etc. I changed the coil packs at about 60,000 miles for a set from a scrap car to sort out a slight misfire, but other than that (and plugs), I've replaced nothing else.
The car is now running a bit worse than usual. There are what I'd call "hesitations", rather than misfires, occasionally. The exhaust smells odd - a sort of chemically eye-watering smell, not unlike rotten eggs. On occasions my wife complains about it "kangarooing". I've not managed to get it to do that as yet. It seems to have as much power as it ever did, the hesitations are only at light throttle openings. Occasionally the idle speed fluctuates wildly and it has stalled once or twice. I've tried disconnecting the airflow meter and it doesn't make any difference.
I was wondering about changing the lambda sensor first...
I've heard about "Alfadiag" and I have access to a laptop. Would it work on a 1999 car?