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Misinformation
P1336 - general misfire
P1337 - misfire on cylinder 1
P1338 - misfire on cylinder 2
P1339 - misfire on cylinder 3
P1340 - misfire on cylinder 4
These codes are manufacturer specific, so mean different things on different cars
They are also engine management system specific, so...
Heard this quite a few times now.
Don’t be so quick to condemn your timing chain because it’s ‘a well known fault’.
There are other things, e.g. fuel pumps.
I would see if other codes emerge in the next couple of weeks. If you have a logging code reader/dongle you can capture data while...
That sounds exactly like fuel delivery issues, not timing chain.
It happens under load: more fuel required, but it couldn’t be delivered, due to low pressure.
Mpg readings showed blank: no detectable fuel flow, due to low fuel pressure (I’d forgotten, mine did this too when my pump failed)...
Not sure your code has ever been associated with a timing chain issue. They’re normally more like a reported phasing issue or similar and applies to the whole bank, not just a single cylinder.
In my mind, it sounds more like ignition (coil or carbon build up) or high pressure fuel pump.
I know...
Mick - good to here from you!
There is a story, but I won’t bore here.
Being a Boy Scout in a previous life, I like to be prepared, so it was a question that came into my head, the answer for which might save me some grief and swearing one day.
Cheers.
For more info., it’s a R version and I can’t quite see the best access to undo the clip that secures the air hose to what I guess is the inlet manifold. It’s a bit buried between the bulkhead and engine, so I wondered what the best way to reach the clip fixing was?