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Bad mapping? ED30 random misfire

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Jackged30:
Hi guys just after some tips after doing some work already to try and resolve it,
Had codes relating to timing, maf and vvt solenoid, replaced these and done a new belt and chain kit with the vvt adjuster. Engines runs beautifully, unlike previously no misfires on idle or normal driving. If you stay between 3.5 - 4 it misses and checks up a flashing Eml light, if you keep the revs higher it doesn’t miss, pulls fine all powers still there. Is it mapping? Any way I can check before I shed money out to get the map changed? (Bought the car with this problems)

Car also has a Decat down pipe

I take cam is at -1, valves aren’t restricted, injectors flowing fine, no vacuum leaks ect

GVK:
Flashing EML means catalyst damaging misfire, if you have VCDS you can see which cyls are misfiring group 14 iirc

It's usually injectors on these tbh.

Mapping, very doubtful.

Jackged30:

--- Quote from: GVK on June 25, 2023, 08:31:08 pm ---Flashing EML means catalyst damaging misfire, if you have VCDS you can see which cyls are misfiring group 14 iirc

It's usually injectors on these tbh.

Mapping, very doubtful.

--- End quote ---

I might be stupid but why would it be telling me about cat damaging misfires with a decat? Forgive me if I’m being thick 🤣 I personally would consider injectors being f*cked but then why is it fine once I’m past that rev range? And it’s missing 1 - 4 not a bad miss or loads of misses but 1 miss too many lol. Logged it on a 10 mile drive and Mis count was 6 - 10 per cylinder

GVK:
You didn't say it had a decat.

 :signLOL:

Jackged30:

--- Quote from: GVK on June 25, 2023, 08:38:54 pm ---You didn't say it had a decat.

 :signLOL:

--- End quote ---

Missed that part out mate apologies, any other reason it would flash with a decat?

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