Corsa Corsa fuel issue

H

Hanks

Well-Known Member
Joined
Aug 12, 2013
Messages
108
Reaction score
0
Hi

I have a opel corsa lite B 1998 - I've been getting bad milage + - 350/400 per tank.I noticed the other day that I have a cable that comes from the fuel pressure regulator , but has broken off somewhere and cant figure out where its meant to connect to.Ive attached a pic.I also have a pipe with a red connector on it , that is just dangling around and not connected to anything.Hopefully someone can assist
 

Attachments

  • opel corsa.jpg
    opel corsa.jpg
    66.9 KB · Views: 10,205
Last edited:
Now that I have seen the state of the engine, I think it is messing you around, just so that you can open the bonnet and clean the engine!! That poor thing is feeeelthy! :eek: Clean it and you will get an extra 150 km on the tank, easy peasy!! ;)

Back to the question, there should be a little pipe sticking out near the distributor, and that should be where the floating pipe should fit. That regulates advance and retard on the engine and could result in heavier consumption. All that being said, the Corsa was never that light on fuel even when it was new.
 
Agreed with Fazda, the Corsa isn't light on fuel, also depends has your traffic changed, are you sitting longer etc.. I get 400km on my Polo and it sucks but thats what I expect and know and have had a lot of things related to fuel checked.
 
Thanks Fazda , will have a poke around and see.
 
This particular car gets heavier on fuel as the engine gets closer to being kaput.
I had a Corsa B, when it went past 140,000km it became a fuel guzzler of note. As to why? the torque output of the engine decreases so much you instinctively put foot more and more to get going.

The 14NE engine becomes a lemon after 120,000km. Both Corsa B's I've owned did this.
 
Koosi said:
This particular car gets heavier on fuel as the engine gets closer to being kaput.
I had a Corsa B, when it went past 140,000km it became a fuel guzzler of note. As to why? the torque output of the engine decreases so much you instinctively put foot more and more to get going.

The 14NE engine becomes a lemon after 120,000km. Both Corsa B's I've owned did this.
Click to expand...

Quite possible, that engine is looking tired from the outside, so heaven knows its state inside!
 
That looks more like a vacuum pipe coming from the fuel pressure regulator. If it's not connected to a vacuum source, fuel consumption will take a knock.
 
The FPR needs vacuum so it must be connected to the intake manifold, the source of vacuum.
Here perhaps?
corsaB-FPR-Pipe.jpg

It came off once so rather replace it.

Also inspect the vacuum tube going to the MAP sensor for cracks as this would cause poor fuel consumption.
MAP(Manifold Absolute Pressure) sensor is the small sensor attached to the firewall near the coolant reservoir with a vacuum tube from the intake and a pair of wires from the loom. It reports the intake manifold pressure back to the ECU.

PS, this car has no vacuum tubes going to the distributor. It has an electronic distributor + coil unit and the ECU controls the ignition timing. Vacuum advance was done away with in the early 90s.
 
Last edited:
That reddish brown connector which is unconnected in front of the battery area is normal. I had the same thing when I had a corsa 1.4.
 
Thanks everyone for your replies , will check it out tomorrow
 
Vacuum tube has been plugged in now , and have noticed when the engine is running idle its much quieter then before
 
I get around 10L/100km on my corsa 1.8 GSi during town driving with AC on which is terrible.

However open road driving with AC on it drops down to 6.5-7.3L/100km, which comfrotably squeezes out an extra 150km per tank.

I've kept a detailed mileage / consumption log book since I got the car 7yrs ago. The scariest part is when you add up all the petrol slips to see just how much you've paid for fuel over the years. Even at an average of R7.41/L I've already spent over R75k on fuel alone...on a car that I bought for R105k.
 
You must log in or register to reply here.
Back
Top
Sign up to the MyBroadband newsletter
X