F430 ignition coils replacement

[chillo]

Hi All,
Had a bit of misfire on a trip to the ring in August where the car got very hot after a day of high running on the Autobahn. Ecu logged some ignition coil errors (P0352) and ran with a misfire until it had cooled a bit. The coil appeared to be breaking down with high temps, all ok if driven gently.
Reset the ecu after I got back took it for a steady run to check what errors it was logging and even though the car was running absolutely fine ecu logged a few cylinder misfire errors:
P0030 Heater control circuit bank 1 sensor 1
P0300 Random/Multiple Cylinder Misfire detected
P0308 Cylinder 8 Misfire detected
P0306 Cylinder 6 Misfire detected
P0305 Cylinder 5 Misfire detected
P0307 Cylinder 7 Misfire detected

So going to get all the coils replaced and new plugs (car is fully de-cat, 10 years old and 30k miles) not sure when plugs last changed! Also will investigate heater control sensor.

I have the Bosch part numbers and attempted to order them from an online parts supplier, however 2 weeks later and countless chases I get informed that they can't get the coil packs!

The coil packs are just standard Bosch coils and the supplier I ordered from priced them at £37 +vat for the 0221604012 (For cylinder 1,2,7,8)
and
£38 +vat each for the 0221604013 (For cylinder 3,4,5,6)
Two different part numbers as above.

I'm struggling to find anywhere else that can supply them?! any suggestions? Looking to part normal parts price without getting stiffed with the Ferrari tax!

Edited by chillo on Friday 7th October 11:10

[chillo]

thanks!

and the other bank:

http://www.ebay.co.uk/itm/0221604012-BOSCH-IGNITIO...

Edited by chillo on Friday 7th October 16:06

[chillo]

update to this, finally going to get the coils fitted in the next month or so as part of my spring service. Have got all the coil packs. What are the best plugs for the F430? any recommendations?
Going to have the manifold fitment investigated for leaks, this is an AP manifold that was fitted new a couple years back. This maybe a cause of the O2 error.

[chillo]

Just to update this thread, got car back after having all coil packs and plugs replaced along with service. O2 sensor, Lambda sensor and thermocouple replaced. New exhaust gasket (updated type) fitted when manifolds where refitted after being plasma coated at Zircotec.
Car running fine so far!
Very impressed with the plasma coating, had both the manifolds and test pipe done. The reduction in heat being radiated is startling! I will post a separate thread on this so it isn't lost in here as think others would be interested!.
One thing to note is the ecu has not thrown a 'PO430 cat system efficiency' after nearly 100 miles! Normally ecu light comes on at approximately 50 miles (car is fully decat, with oem remote switchable valve back box). I'm not sure what its related to out of all the above stuff done? I do have 'mini cats' in front of the post lambda sensors but they made no difference before? Will update if the ecu cat efficiency error comes on.

Edited by chillo on Tuesday 30th May 18:37

[chillo]

mwstewart said:

The coating means more heat is kept within the exhaust which in turn is transferred to the cats, keeping them in their optimum heat range (they like it hot!)

My car is fully de-cat! (I have a 'mini cat' -small piece of tube with a section of cat construction in between the pipe and the secondary Lambda sensor).

fyi.
The P0420 & P0430 cat efficiency error came on after just over 100 miles. (It used to come on after approx. 50 miles following and ecu error code reset.

[chillo]

mwstewart said:

The mini cat is still a cat with the same operating requirements as a full sized version, so the principle is the same. What happens when you remove the mini cats?

Mini cats make no difference fitted or not, still get the same P0420/430 error.