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1

General Car Chat / Re: Can anyone help a little old CORSA out please?

« on: 09 May 2015, 11:06:25 »

Yet again great advice from OOF...

It was the coil pack, that and a damned good service has made the old girl as good as new...

Re the water leak, ended up removing the brake servo for better access, now my neighbour with the same vehicle, same year, same problem wants his doing too...

Obviously very common on Corsas

Cheers

2

General Car Chat / Re: Can anyone help a little old CORSA out please?

« on: 07 May 2015, 20:08:14 »

So sound like coil pack is the issue, under load you need max volts and hence the failure shows.

Leak into drivers foot well, the approach I take is to remove scuttle cover and unbolt the pedals, unbolt the master cylinder and servo and move up slightly. Remove bolts to the problem plate and ease it so there is a 10mm or so gap. Clean area really well. The use a polyurethane sealant and inject it and force it into the gap before bolting the plate back down. Now add another bead of sealant over the joint and spread it out. The refit the various removed parts. Done about 5 or 6 like this and it works a charm without having to do a full strip down.

Looks like some good advice. I've bought a coil  pack and a full service kit so will try the coil  pack first before I do the service, it can always go back if it is not the culprit.

Re the water leak, thanks for that too!! That's the afternoon job, it's already been smothered all round with what looks like clear bathroom silicone sealant but done without moving or undoing anything.

I will report on tomorrow's frivolities  tomorrow....

3

General Car Chat / Re: Can anyone help a little old CORSA out please?

« on: 07 May 2015, 05:19:11 »

Clean out the TB and breathers. Check for air or vacuum leaks if the revs are surging as these don't have an ICV.

Throw a genuine GM CTS (ECU one, not gauge, if there are two on this engine) at it, it can solve a world of problems.

The misfire will be plugs or coil pack most likely. Check/change the plugs, give it a bit of a service and see how it goes.

Thanks for all that deviator,

Once I got my head round all the acronyms or TLAs I get the idea.

I had a quick look last night, I swapped the spark plugs about and ran it again, I noticed the spark would only break down under load not on idle, so still doing it and again after clearing the codes then ran and rechecked got the same misfire no 1 cylinder code.

I then cleaned out the fat and thin breather pipes they looked like smokers arteries.... Cleared lots of mayo and water out!!!!

Other than carb cleaner what is the best way to clean the Throttle Body out??

As long as the reason isn't an engine catastrophe then I've been asked to do a full service on her and sort the water leak into the drivers footwell, but that's a whole other thread... (Pedal box seal)

Thanks again

Dave

4

General Car Chat / Can anyone help a little old CORSA out please?

« on: 05 May 2015, 19:44:18 »

Evening,

After the success of my mates omega being fixed/remedied in this forum I thought I'd try another cheeky one on the side.

I'm hoping that one or two of you out there have, do or try to work on multiple Vauxhalls!!

On the success of the omega another friend has come asking about his little Corsa, she is a 55 plate 2006 1.2 petrol Corsa. She has started to play up, symptoms were loss of power, engine light coming on occasionally, lacking in power under load and an idle that surges between 500 and 750 rpm.

I firstly did an obd2 check and got no codes... I have given her a decent run and all of the above occurred even a flash of engine light under load. Got her home and the OBD2 reader then got a single code.. P0301 so number one cylinder misfire!!!

I will be tackling the issue on Friday but are there any common faults that spring to mind??  I will obviously check the plugs look at the coil pack, try and do a compression test etc...

Any initial help would be very much appreciated... There must be a Regular who has had this before somewhere out there.

Thanks in advance

Dave
 

5

Omega General Help / Re: Fault Code roulette

« on: 06 April 2015, 20:54:50 »

I do hate to see forum threads that just stop abruptly normally when someone has solved their problem then decides not to post.

My friend now has his omega back and she is running really well.

The final solution was a crank sensor and a coil pack....

All engine codes erased and rechecked to show an all clear...

Thanks to all those that posted

Dave

6

Omega General Help / Re: Fault Code roulette

« on: 27 March 2015, 22:18:47 »

I think my situation will be similar but not nessasarily the same.

I'm 99.9% sure the sprockets are on the right way round as in they are on the key ways for 1 2 3 4 but it may be that I have used the wrong timing mark when timing up...

Therefore a possibility that just one cam is about 1/4 turn out...

Still just speculating at the moment!!

Proof will be in the stripping!

7

Omega General Help / Re: Fault Code roulette

« on: 27 March 2015, 21:23:07 »

Thanks I hadn't seen that one!!

Looks like the front of the engine is coming off again... When I did the belt I used an 8" long ratchet and socket to turn the engine so would be highly surprised if that would have bent a valve rather than just lock up...

Front of engine off on Sunday I think as I'm  off to the Classic car and restoration show tomorrow...

Thanks will update the post later with any and all results!!!

8

Omega General Help / Re: Fault Code roulette

« on: 27 March 2015, 20:20:28 »

Right,

I now have an OBD II reader, I have erased the codes and tried again and it still has p0340 P0300 and P0100...

I have tried a genuine I hasten to add MAF, Cam Sensor and Crank Sensor... And near as makes no difference!!

But all is not lost because whilst under the engine I noticed the 135 exhaust was getting very hot as an exhaust with CAT would but the 246 exhaust is almost stone cold, I have checked the connection to the Coil pack and I have taken the plugs out soon after running and they are hot and showing signs of firing...

I can only think that I'm either looking at a blocked CAT or I've used the wrong timing marks on the 246 cam shaft... But I was quite religious with following the numbers from 1-4 and putting the cam sprockets onto the right pin, but the timing marks had been tipexed and  there are obviously two grooves per cam sprocket.... I'm starting to doubt myself now!!!

Does anyone know if the wrong groove on the sprocket was used whether the valves would have touched the piston crown and locked the engine on turning it.... Any way I can check without stripping the front down again???

9

Omega General Help / Re: Fault Code roulette

« on: 24 March 2015, 20:12:27 »

But otherwise yes a lot of random guessing. Do don't ask me file the winning lottery numbers this week!!

10

Omega General Help / Re: Fault Code roulette

« on: 24 March 2015, 20:10:23 »

No not by the traditional method as I was unable to get my hands on any form of technical wizardry as yet.

I have found that disconnecting the battery clears the codes, as when reconnected without starting I get the continual flashing to denote  no codes showing I then start the vehicle and I do the  2 pedal test I then get the relevant codes.

After fitting the MAF that code has now stopped I'm just getting
P0340 and P0300 all others have stopped flashing up

I'm going to the Classic car restoration show on Saturday with my mate who has a reader I will get it then..

11

Omega General Help / Re: Fault Code roulette

« on: 24 March 2015, 18:48:38 »

Ok,
Changed MAF still getting cam sensor fault code...

I disconnected the crank sensor and it wouldn't start and then it gave a crank sensor fault code. I reconnected the crank sensor and it started as it had been.

I disconnected the battery for ten minutes re connected then ran and rechecked the fault codes. This time I got cam sensor and random misfire code...

This car is being a pain it seems obvious but I take it I need to change the cam sensor now??

I thought I was already running out of hair 

12

Omega General Help / Re: Fault Code roulette

« on: 21 March 2015, 10:01:04 »

I do have a friend with a reader so will borrow his to check and clear...

I have noticed though, each time I did something different like disconnect the MAF and then recheck the codes they had either cleared and then produced new codes or just dropped the old codes that were no longer relevant.

As in when I statred I had about 10 codes then I tinkered with it and it went down to 4 then I ended eventually with the 2 codes for the cam sensor and MAF issue...

Due to work I've not collected and fitted the MAF yet but will report after...

13

Omega General Help / Re: Fault Code roulette

« on: 19 March 2015, 18:23:42 »

Ok,

I've ordered a MAF sensor, the cam sensor was changed in 2011 at VXL by VXL.

Once the MAF is done I'll re check the faults and then decide on cam or crank sender...

Not my money so don't want to go spending a mates money willy nilly!!

Will update at the weekend when done.

14

Omega General Help / Re: Fault Code roulette

« on: 18 March 2015, 17:58:08 »

Ok a quick think here.

First thing to do is check the connections on the cam sensor and ensure the wires associated with it are not trapped under the cam cover.

Double check the cam sprockets are fitted correctly (e.g. the cam locating pins are in the right slots on the sprockets)

I personally have never seen a cam sensor failure.

Make sure the Coil packs are connected (these engines will start easily and run on a single coil pack with three cylinders only firing).

So basics as a starting point, can you clear the codes at all (as unplugging various sensors etc can add more confusion)

Ok from the top,
Checked cam sensor wiring all good and connected up, I even removed the sensor and left it hooked up to see if it reacted the same (it seemed to)

The cam sprockets were meticulously placed on the right number on the cam shaft and timing it took long enough with multiple revolutions to make sure it was set properly.

I've renewed the coil packs and they are well connected and correct for the banks they are on.

If it helps it runs like a pig with MAF connected disconnect it and it just idles badly but does run.

My mate tells me the cam sensor was changed in 2011 not sure whether it was VXL genuine..

Please carry on I'm thinking of ordering a MAF a cam and crank sensor then test them all to find the culprit or culprits...

Thanks all

Dave

15

Omega General Help / Re: Fault Code roulette

« on: 17 March 2015, 21:41:37 »

Thanks, I may well have unplugged the crank sensor unknowingly when I cleared the wiring harness to take the heads off.

Another thing to check in the morning