mwg
Member
Registered: 19th Feb 04
Location: South Lakes
User status: Offline
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Got a few engine problems at the moment that I cant work out. Not sure if they are all down to one thing or whether its a combination of bits that are wrong:
- Theres a slight judder then the EML comes on after I've been on the motorway for about 20 mins. After this it will sometimes lose power but sometimes it will run fine. Either way EML will keep coming on
- Sometimes pinks (makes no difference if engine is hot or cold)
- Mechanic that serviced it for me said he thinks its got a misfire
- Sometimes when setting off from traffic lights it will feel like its bogging down and kangaroo like a learner driver (makes no difference if engine is hot or just been started)
Tech 2 brings up o2 sensor which I have had replaced but still comes up on Tech 2.
Also had crankshaft sensor, AFM, ICV and another one I cant remember 
Some days it runs fine and have none of these problems.
So how the hell do I find out whats wrong with it? and how do I stop the pinking/misfire 
MPG is still good and it ticks over ok. And some days it runs spot on, cant fault it, but 90% of the time it has these problems 
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Rileysport
Member
Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline
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tried another ecu on there yet ???
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mwg
Member
Registered: 19th Feb 04
Location: South Lakes
User status: Offline
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Isn't an ECU going to cost me alot of money? And what makes you think its the ECU
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Rileysport
Member
Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline
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try borrow one first...
i reckon ecu because you replaced bits that were showing fault codes but its still showing them
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mwg
Member
Registered: 19th Feb 04
Location: South Lakes
User status: Offline
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Is it easy to change the ECU? Does it just unplug?
Bro has an X12XE so will try to borrow his ECU. But hes never at home so slim chance of being able to do it!
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Joe
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Registered: 20th Jun 04
Location: Hesketh Bank, Lancashire
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ECU is on the engine on the X12XE, chances of it being the ECU itself are pretty slim. Have you replaced all the parts with brand new replacements? Could be EGR valve?
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mwg
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Registered: 19th Feb 04
Location: South Lakes
User status: Offline
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I thought the ECU was behind the kick panel on the drivers side? There was something that looked like an ECU down there last time I had that panel off.
Yeah all parts have been brand new replacements. Did have a 2nd hand AFM but thought that was maybe the problem so bought a brand new one and not made a difference.
EGR was one of the things I was going to try but was wondering if that would cause all of the problems my car has? Like the pinking/misfire?
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Joe
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Registered: 20th Jun 04
Location: Hesketh Bank, Lancashire
User status: Offline
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There is one in the kick panel, but im pretty certain theres one on the back of the engine itself. Someone correct me if im wrong.
My cars been idling a bit funny and the computer at work says its EGR.
My GF's has been bogging down when cold and a flat spot at 4,000rpm which mine used to do which turned out to be the AFM, her management light came on the other day and the computer said O2 sensor which mine did when the AFM was at fault. So they do sometimes throw up rogue codes, as hers has been fine since I changed the AFM and just left the o2 sensor.
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timmy101
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Registered: 3rd Feb 05
Location: halesowen
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i had the exact same problem and spent loads on new sensors. however mind sorted it self out when i unpluged the afm. the eml is on but it ran fine. it might be worth unpulging the sensor first just to see
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X 60RSA
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Registered: 20th Aug 01
Location: Lincoln
User status: Offline
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EPS ECU is behind the drivers kick panel.
The coil packs can go on these engines iirc.......
Coil pack and EGR prob worth looking into, maybe swopping over with a mate who has the same engine just to see??
(and when you put these new parts on do you disconnect your battery, might not make the slightest bit of difference but another problem ironed out, plus should clear the fault)
[Edited on 26-06-2006 by X 60RSA]
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vaux-tech
Member
Registered: 28th May 06
Location: Preston, Lancs. Drives: Astra SRI turbo.
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egr problem maybe, u need to check the datalist on vauxhall's tech2 diagnostic equipment
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mwg
Member
Registered: 19th Feb 04
Location: South Lakes
User status: Offline
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quote:
Originally posted by vaux-tech
egr problem maybe, u need to check the datalist on vauxhall's tech2 diagnostic equipment
what do you mean check the datalist?
Is the EGR valve a bugger to change or is it easy to get to?
Need to buy a Haynes Manual I think, only got a Haynes Manual for the pre 97 models (used to have pre 97 Corsa) and that doesn't cover the X12XE
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Joe
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Registered: 20th Jun 04
Location: Hesketh Bank, Lancashire
User status: Offline
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Its not hard but its quite fiddly, couple of the bolts are in stupid places plus cooland goes through the EGR so you'll have that to contend with aswell.
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mwg
Member
Registered: 19th Feb 04
Location: South Lakes
User status: Offline
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I've ordered a new Haynes Manual so I'll give it a go! Be cool if EGR is the source of all the problems but knowing this engine it wont be
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