HELP ME,I have a mark 2 astra sri.
I changed the metal fuel return pipe two weeks ago, I couldnt obtain an original pipe so I used 10mm copper pipe.
The car started well and petrol didnt leak and I was chuffed.... well I took her for a drive 2 mins later, got to the junction at the end of my street and hell broke loose.
The car just sat there misfiring, backfiring and refusing to budge... Ive since changed the Ht leads, the plugs, the dizzy cap seemed ok, there doesnt seem to be any induction leaks but she still wont go at all well...all plugs are firing...
She idles well and runs well cold but the moment she gets slightly warm the problems start!!
Do you have any past experiences or any idea whats going on?