Help, minor engine problem - wiring checked (followup) - Corsa Sport - for Vauxhall and Opel Corsa B, Corsa C and Corsa D

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shane2corsa

Member

Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
User status: Offline

19th Jan 07 at 21:52

Hi, some of you may be aware i now have a X16XE in my car.
Its great but in the last few months ive had some minor teething problems.

Engine management light on (code 46)

Misfire when idling with the 'warm up fan' thing on

very bad lag on acceleration when cold (almost seems like no power until 3K then all at once, FULL POWER)

poor fuel economy

ive replaced so far...
EGR valve
Lambda Sensor
Coolant temp sensor
Cam belt and pullies (for safety)

as far as im aware this 'code 46' doesnt even exist which is baffling me some what.... discuss...

I will be grateful for any help.
thanks
Shane

[Edited on 23-01-2007 by shane2corsa]

shane2corsa

Member

Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
User status: Offline

19th Jan 07 at 22:08

Dave A

USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
User status: Offline

19th Jan 07 at 22:35

code 46 is dispack related. either a bad earth or faulty dispack and/or wiring

shane2corsa

Member

Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
User status: Offline

20th Jan 07 at 09:17

interesting, that would explain the misfire, so its a case of checking the dispack and wiring. would HT leads cause a similar fault? as these got wet a while ago when i washed the engine down..

shane2corsa

Member

Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
User status: Offline

20th Jan 07 at 14:04

Dave A

USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
User status: Offline

20th Jan 07 at 15:46

try a different coilpack, you have one for sale in your sig

shane2corsa

Member

Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
User status: Offline

20th Jan 07 at 18:22

quote:
Originally posted by Dave A
try a different coilpack, you have one for sale in your sig

tried it, made no diffrence, thats why its up for sale.

Shrek

Member

Registered: 2nd Nov 06
Location: Berkshire
User status: Offline

20th Jan 07 at 20:37

have you checked the timing mate? also i would check the bottom pulley and see if it has moved on the key way on the crank.

shane2corsa

Member

Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
User status: Offline

21st Jan 07 at 16:08

hmm thats worth a check too, thanks for the help so far!
would dodgy HT leads cause a code 46 fault?

Dave A

USER UNDER INVESTIGATION - DO NOT TRADE

Registered: 10th Dec 03
Location: County Durham
User status: Offline

21st Jan 07 at 17:04

checked the earth points yet?

Shrek

Member

Registered: 2nd Nov 06
Location: Berkshire
User status: Offline

21st Jan 07 at 18:19

quote:
Originally posted by shane2corsa
hmm thats worth a check too, thanks for the help so far!
would dodgy HT leads cause a code 46 fault?

could do ecu may register a miss fire

shane2corsa

Member

Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
User status: Offline

21st Jan 07 at 18:25

quote:
Originally posted by Dave A
checked the earth points yet?

Thats tuesday nights job. The car is driveable, the EML only comes on after about 10 mins driving.
Thanks
Shane

shane2corsa

Member

Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
User status: Offline

21st Jan 07 at 19:16

Which earths should i be checking? i obviously know of the one which is attached to the bulkhead and i think there is one attached to the cylinder head? this is my 1st 16v engine so im a bit clueless on it TBH

shane2corsa

Member

Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
User status: Offline

22nd Jan 07 at 20:43

quote:
Originally posted by shane2corsa
Which earths should i be checking? i obviously know of the one which is attached to the bulkhead and i think there is one attached to the cylinder head? this is my 1st 16v engine so im a bit clueless on it TBH

shane2corsa

Member

Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
User status: Offline

23rd Jan 07 at 21:24

hi all
if you have been reading the thread ive had an intermittent fault, and here is tonights findings -

i started by stripping the upper inlet off then i checked all the wiring around that area and everything seemed fine, so just for good measure i swapped the Dispack.

re-assembled, started the car and it was idling at 2500-2000 rpm and the revs were fluctuating badly!

initially thought.. what have i missed off... but i hadnt

so i stripped it down again, and this time cleaned the earths and sprayed some magic spray on the big blue twist off mutiplug.

re-starts, idling problem solved but EM light comes on instantly

i get the feeling its a connection problem but just dont know where to look next

any suggestions will be taken on board
Shane

Shrek

Member

Registered: 2nd Nov 06
Location: Berkshire
User status: Offline

23rd Jan 07 at 21:55

make sure the plugs are all bck on proper then do the wiggle test, go round the lot and poke and push everything you can find and see if it changes the running or throws the light off, failing that a trip to vaux may be in order may just be a code that needs clearing. make sure that the knock sensor is still plugged in thats a fav.

shane2corsa

Member

Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
User status: Offline

23rd Jan 07 at 22:07

i havent checked the knock sensor yet, wheres that plumbed into?

Shrek

Member

Registered: 2nd Nov 06
Location: Berkshire
User status: Offline

23rd Jan 07 at 22:14

the plug sits just under the top part of inlet manifold, theres a few other plugs under there 2

shane2corsa

Member

Registered: 4th Sep 05
Location: Nettleham, Lincolnshire
User status: Offline

24th Jan 07 at 17:50

... being lazy now, booked it in at vaux! hope they come up with a cure!