Hi all,
So, I have P0340 flagging up:
What on earth else can I try??
First post Thanks!
So, I have P0340 flagging up:
- Z22SE, ~97000 miles, Astra G Convertible
- EML is intermittent.
- Air temp sensor reads 25 degrees in 2 degree winter- old one is on the way but find it hard to imagine it could be this causing the fault. New one in the post.
- Changed coil back (last one died!)
- New plugs, oil and fuel filter.
- Changed throttle body (cleaned). Old one had some play leading to slightly dodgy idle and pulling away.
- Removed cat since timing was not always erratic... it was completely blocked.
- Cleaned EGR valve.
- Pipercross air filter
- Timing chain is in good visual condition, no noticeable loss of power or noises.
- Timing seems stable on scanner.
- Engine start is a bit rough 50% of the time. Fine once on and settled.
- When (and only when) EML light is on, I get a slight under-rev every 10 seconds (exactly), almost like it's trying to resync.
What on earth else can I try??
First post Thanks!