hi, ive got a problem with my 2001 astra, the engine code is Z14XE, its been happening since about 80,000 miles (cars now done 85,000 miles)
its difficult to explain but it seems like a missfire, only when travelling at low speeds with foot just touching the accelerator, it kangaroos but if i let off the gas it stops, it also stops if u put ur foot down to speed up.
theres no EML, heres what ive done so far...
ive changed the EGR valve and gasket
new oil, fuel, air filter
replaced coilpack (genuine delphi)
filled tank with petrol and used redex injector cleaner
throttle body was cleaned out at ~83,000 miles, although it was caked up this also made no difference
and the problem is still there, its only when its under load, its fine if you just rev it in neutral
next im going to try the coolant temp sensor or lambda sensor, but it does seem as if im throwing money away with this car which is a shame cause i really loved driving it
where can i get my meter in to test the lambda sensor? would it be ok just to touch the wires on the actual sensor?
worries me too ive seen posts about this but no one seems to have a definite answer