Help and advice section for technical questions on your Corsa.
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Ive just bought a little red W reg corsa 1.2 with 77 thou on the clock and 12 months ticket.
It was hesitating, not bad but defo there. I first thought maf but after hearing a strange sucking noise coming from the back of the engine. I located this noise and tried to disconnect the fitting. As usual the bloomin thing broke. This is what I was left with.
The black part with the ribs rigjt in the middle is where it should go. Its obviously some sort of sensor. Comes off the servo.
How would you go about getting it out? Is it pushed in or screwed in?
Just a quick question first, do you have the missing bolt from your air box ? Because if that is missing i would be certain thats why it was holding back.
Not sure what that sensor is but il check tomorrow if i have time, but looks like your going to have to solder a new conection on and fit it back
If it doesn't fit,
force it,
If it breaks,
It needed replacing anyway
I was half way through taking it off to get a better look. I have all three bolts.
It's the plastic part that has broke. I have had to take a small connector and plastic pipe out the connector with the yellow on. That's the part that should still be attached to the hole where the ribbed piece on the bottom pic
That's your brake servo pipe looking at it, should be connected to your inlet manifold so it has a running vacuum so your brakes work, not sure how this connects on a 1.0 or a 1.2 as I've never actually worked on one but if it was on a 1.4+ vauxhall engine it would screw into the inlet manifold.
Saab 900s 2.0 3 door n/a 140bhp
Corsa 1.4/1.6 5 door n/a 0bhp
Part replaced but still hesitating to rev. If I blip accelerator it stutters then revs. If I take it slowly it revs up fine. Ticks over perfect. I have noticed however, the same "hissing" noise when I rev it coming from the servo pipe area. You have to rev it from the engine with head down to rear of engine to hear it. Is this normal? It's a W reg 1.2 16v, so if anyone with the same engine could check theirs and report back I would be really grateful.
When I first plugged it into opcom. It said maf voltage low and maf voltage high. 2 different fault codes stored. I noticed that it had been put on the wrong way round. I turned it the right way and now I'm only getting voltage low. Would this problem give me the hesitation?
Also, my air filter box has what seems to be 2 air intakes. The usual one that bolts to the slam panel and another that comes off at 90 degrees and points down right below the first?? It also has the round part that sits on the right of the box which seems to be something for vacuum but the pipes missing. I've looked at my engine pic in Haynes and it shows a different air box?
You have the 1 liter air box, just take it off it does nothing and only held with 1 screws
A brake vacum isnt goin to make the engine hesitant its goin to make your brakes crap, if the maf is fubar its sending the wrong reading to the ecu which then sends the wrong reading to the fuel, so it could be your maf, buy genuine though, generic dont last long
If it doesn't fit,
force it,
If it breaks,
It needed replacing anyway
