my mate's cav turbo has developed a really naughty misfire - it's so bad it barely idles (bout 450-550rpm) and pushing the accelerator takes about 3-5 seconds to have an affect. so far we've changed coil, dizzy cap + rotor, leads and throttle position sensor. also, we've fitted an adjustable fuel pressure regulator which shows 2.3 to 3 bar fuel pressure depending on throttle.
the injectors have just been cleaned and we;ve checked every wire we can see for damage or unpluggedness (splmao )
surely there can't be anything else? anybody had something similar?