Hiccup

[SnortonR]

Hi, I've got a persistent problem but it's not really causing any worry; just a nuisance.
The car hiccups. It's as though fuel stops for a split second. I've read that it's the MAF sensor. There's cheap replacements but I thought the real thing from a breaker would be better. I've changed it but the same problem's there although less noticeable. I suppose being used and of unknown mileage it could have the same problem but may it be something else?
While ebaying replacements I came across maf cleaning sprays. I've got an electrical contact cleaner which I suppose does the same job and I'm trying that now.
If that doesn't fix it is it worth me getting a replacement sensor only rather than the whole caboodle - they're about 39.00 on the bay.
Is it a precurser for a future major problem?
Thanks in advance for any help.

[robbie]

When does it hiccup.
Is it when you go to accelerate?

[robbie]

Just read your other post. Take the throttle position sensor off and chech the plastic link.

[SnortonR]

Thanks Robbie. I need some help locating that. Is it at the pedal or throttle?

[robbie]

Side of intake manifold 3 wires I think and 2 bolts

[vauxsqueeks]

If you haven't put any injector cleaner through it, put a bottle in with 30 litres of fuel or so and run that through completely. if it starts coughing/spluttering then you have found your problem.

try to get through the lot though as you will need to replace your fuel filter after if the system is dirty. I got about 20 miles in mine, before it died at the side of the road and had to do a fuel filter change roadside to get going again.. was fine after.

Also clogged egr can cause coughing at speed.

[SnortonR]

I run it with redex every second tank if Tesco have it for 2.00. Is injector cleaner different?

[vauxsqueeks]

[SnortonR]

I tried the electrical contact cleaner on the replacement and it was worse. I've put the original back and living with that until I've time to work through the suggestions:
vacuum pipe at throttle body; throttle position; crank position; clean injectors.
Discovered it will run without maf sensor connected. I'll try that too.

[SnortonR]

Silly Question?
If the car runs ok with maf sensor disconnected; what's the maf sensor for?

[vauxsqueeks]