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Replaced MAF - new problem!

Posted: Sat May 08, 2010 3:09 pm
by lee_uk
Just bought the car 1 week today (1998 "S" reg 1ltr 12v merit / 3 cylinder)... and within days I noticed with applying moderate to full gas the car would go into some kind of limp mode and warning light would appear until the revs dropped below 3k. So I have since replaced the MAF with a brand new Bosch one (exact part number etc)... I disconnected the battery for about an hour before trying it out...

Now.. the car wont start unless I press the accelerator to kick it into life.. and when stationary at junctions it gets close to cutting out... Anyone have any ideas what this might be?? I`m stumped basicially :(

Note: it`s worth adding the car has a full service history at vauxhall (next one due in July) and has done 34k miles.

Re: Replaced MAF - new problem!

Posted: Sat May 08, 2010 4:02 pm
by matty101
I disconnected the battery for about an hour before trying it out...
dissconnecting the battery doesnt reset the battery, your car probly still thinks the MAF is broken . i'd take it to a garage and get them to reset it properly.

Re: Replaced MAF - new problem!

Posted: Sat May 08, 2010 4:17 pm
by lee_uk
Also now when the car is slowing (revs falling) the engine warning light appears for a few seconds (no loss of power though) .. Any thoughts?

Matty: Yeah I guess I will have to do that, cheap do you think?

Re: Replaced MAF - new problem!

Posted: Sat May 08, 2010 4:56 pm
by matty101
i had a diognostics test and fault codes cleared for £40

Re: Replaced MAF - new problem!

Posted: Sat May 08, 2010 4:58 pm
by lee_uk
(I didnt mention the fact the original problem had cleared though - I can now freely accelerate through the gears with no issues)

Re: Replaced MAF - new problem!

Posted: Sat May 08, 2010 5:02 pm
by matty101
liam (bluecorsab) would be the guy to speek to, and if he doesnt know his dad deffinatly will. if his dad dosnt know, its not worth knowing.lol

Re: Replaced MAF - new problem!

Posted: Sat May 08, 2010 5:40 pm
by bluecorsab
first step get the fault code cleared its rattling around in your ecu and wont just go away especially on that engine :lol: next go into the faqs and look at the guide on cleaning your idle control valve ,thats where your problem lies ,its never anything else on those bloody things :) they are pants :lol: :lol:

Re: Replaced MAF - new problem!

Posted: Sat May 08, 2010 9:39 pm
by lee_uk
Yeah before I bought it I knew nothing at all about the Corsa... still don`t :) ... But I am beginning to realise buying this damn 3-cylinder engine is a pretty big mistake :( Will take a look at the guide for the cleaning the ICV.

Re: Replaced MAF - new problem!

Posted: Fri May 14, 2010 10:09 am
by lee_uk
Well booked in for 2pm today to get the ECU read and fault codes cleared - car seems to be starting ok now though... (maybe the ECU has re-configured itself somewhat) .. Either way will post an update later on

Re: Replaced MAF - new problem!

Posted: Tue May 25, 2010 6:20 am
by lee_uk
Well to cut a long story short the vx dealer was poo, the codes had been cleared but the light came straight back on... Went back and they tried to con me into buying a new MAF from them for £200. They eventually agreed the one I bought was the same as they would install. Anyway a local garage cleaned and reset the throttle body (and cleared ECU again). Now everything is fine :P