corsasport.co.uk
 

Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » P304 - Misfire on Cyl 4 help


New Topic

New Poll
  Subscribe | Add to Favourites

You are not logged in and may not post or reply to messages. Please log in or create a new account or mail us about fixing an existing one - register@corsasport.co.uk

There are also many more features available when you are logged in such as private messages, buddy list, location services, post search and more.


Author P304 - Misfire on Cyl 4 help
chris_uk
Premium Member

Avatar

Registered: 8th Jul 03
User status: Offline
14th Oct 14 at 11:15   View Garage View User's Profile U2U Member Reply With Quote

parents zafira came up with this code the other day so me n pop set about having a look at trying to sort it..

checked the injectors and they are all ok, checked the wiring to the plugs that seems all ok (spark plug on cyl 4 is wet so it must be working)

narrowed it down to the coilpack (ignition coil) and we bought another, put it on this morning and problem still remained.

the management light comes on along with the traction control light
the water temp never registered much more than 80c
had a wierd cat type eggy smell in the engine bay

any idea?

its a z18se and is totally bog standard.
SportBoy
Member

Registered: 5th Oct 01
Location: Retford, Nottinghamshire
User status: Offline
14th Oct 14 at 11:25   View User's Profile U2U Member Reply With Quote

If plug is wet it will normally be plug,coil or compression.
chris_uk
Premium Member

Avatar

Registered: 8th Jul 03
User status: Offline
14th Oct 14 at 12:19   View Garage View User's Profile U2U Member Reply With Quote

i swapped plugs from cyl3 and 4 and the wet cyl4 plug was dry and the cyl3 plug was wet, that leads me to believe it wasn't the plugs.

the coil is brand new so i cant see it being that.. i shall check the compression tomorrow.
chris_uk
Premium Member

Avatar

Registered: 8th Jul 03
User status: Offline
14th Oct 14 at 19:23   View Garage View User's Profile U2U Member Reply With Quote

did a compression test on the engine tonight and cyl 1-3 had 150psi but cyl4 registered 0psi.

could it be a sticky valve maybe?
johnhara1
Member

Registered: 19th Oct 06
Location: Newcastle upon Tyne
User status: Offline
19th Oct 14 at 20:36   View User's Profile U2U Member Reply With Quote

Valve, Head or Ring.

DERV-POWER
Member

Registered: 13th Sep 09
Location: Greenfield, Flintshire
User status: Offline
25th Oct 14 at 19:47   View User's Profile U2U Member Reply With Quote

burnt out exhaust valve
guessing its a 1.8

 
New Topic

New Poll

  Related Threads Author Forum Replies Views Last Post
more engine help needed please (16xe) RobHayes Help Zone, Modification and ICE Advice 8 488
3rd Sep 06 at 18:40
by RobHayes
 
x14xe power thread Marcus_corsa Help Zone, Modification and ICE Advice 49 1874
27th Feb 08 at 10:39
by WMCMoo
 
My GSI XE and gf's White, Gsi being stripped spankyjames Projects and Builds 192 15910
14th Sep 11 at 19:34
by Christopher
 
Impreza sold Andy Stocker General Chat 65 2312
15th Jul 09 at 14:04
by Andy Stocker
 

Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » P304 - Misfire on Cyl 4 help 27 database queries in 0.0128310 seconds