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[grimreaper]

 :)hi im new to this site,my ecu light came on last week ,took car in to have checked out on computer .codes;0335,0340,0351,0352 on display havn't a clue wot these mean.before light comes on car looses power then misfires splutters rev counter goes mad then engine cuts out help please  

[TheBoy]

What engine? I'm guessing 2.0 or 2.2 petrol?

[rickyboy]

0340 - camshaft sensor
0335 - crankshaft sensor
0351 - ignition coil 1 and 2
0352 - ignition coil 3 and 4

Give the cam sensor a clean and see if there is any difference.  If 2.0 litre - take ecotec strip/spark plug cover off, timing belt cover off and then remove the sensor that sits in between the two cams.  Lift it out upwards.  Clean the metal part of the sensor and it's mating faces then re-fit.

Hopefully you won't need to change anything else - the cam sensor brings all sorts of weird and wonderful codes up when it's not working properly.  It's an easy place to start and can often fix all codes with just a clean.

[TheBoy]

ignore misfire codes until crank and cam sensors resolved.

[MAX]

rickyboy will help you out all the way he helped me out and my car now runs like a dream  

[MAX]

mine went a bit like yours and ended up being the cam sharft sensor cost £25 for the part and rickyboy to explain how to do it which was pretty simple and bobs ur uncle and fannys ur aunt

[rickyboy]

Glad to hear your car's back to good health Max!  

[grimreaper]

 :)yes it's 2.0 so by changing cam & crank sensor should hopefully solve sum of probs,is the cam & crank sensor easy to change ?is this what is causing rev counter to go mad? :-/

[rickyboy]

Cam sensor is a doddle - so start with that.  Read my first post it will tell you how to take it off.  If you look at the ecotec strip the sensor itself is plugged in at the front of it.  

Crank sensor can be more tricky especially if you have air con.  

[rickyboy]

As of the rev counter - could be the speedo clocks aren't pushed home into the dash.  Does the temp gauge work?  If the temp guage isn't working as well as the rev counter then either the wiring from the ecu temp sensor is frayed/split or the spade connector is not on tight enough.

[grimreaper]

yes it has got air con,all gauges are working fine except the rev counter when ecu light comes on,thanks for your first post i will give it a clean & let you no the out come

[Canon Cam]

I have exactly the same problem on my 2000 2.0 GLS Auto.

I have just cleaned the cam sensor, but the problem still exists.  Would it be wise to replace to cam sensor before moving onto the crank sensor? - and where is the best place to buy a cam sensor??

Thanks

mark

[rickyboy]

Just replace the cam sensor and all should be well again - if you have paperclipped to confirm you have a 0340 code in there.  

[Canon Cam]

Yep...codes are:

0340
0335
0351
0352

So..will look for a cam sensor tomorrow.   what..about £30 :question

[vauxsull]

Help required here too on this subject although mine is a v6. Light has just come on but have no aparrent mis-firing or juddering. never done this before in 18 months of ownership. Anyone in my area with a fault code reader i could use would be brill ( by pure bad luck the wife's Corsa has the same light on)
Cheers......
               Keith......