Just been looking at a 1998 Astra G, 1.6 8V
symptoms are cutting out when hot, will restart when cool.
Jumping / misfiring type feeling once warm.
No fault codes, dealer 'given up', but did replace EGR
car looks reasonably services, air filter was immaculate, oil reasonable
coolant - old blue type but ok.
Was a LOT of mayo on the filler cap, but car has only done short recently.
Car only has 40000 on the clock, original owner from new.
My engine diags (live data) all looked ok, with the exception of 2 and 4 pots showing a knock value of 2 when cool, but all 4 showing 5-7ish when warm.
There is also a bubbling / gurgling type noise from where the heater pipes come through the bulkhead type noise (when revved)
Any ideas?
Ive sent them away to get a decent tank of petrol (v-power) was down to 1/8 a tank of Sainsburys, and to go for a longish drive, with some high rev driving, and see where it goes from there.