1.4 petrol hesitating

[Barry]

Hi All,

As you can see I'm new here, I have owned my 2002 Belingo 1.4 petrol from new, it has about 130,000 miles on the clock and has never missed a beat until recently. About a month ago, I had a problem when the car would start to hesitate whilst driving and not respond to any accelerator pressure, and would only tick over and drive on a very steady accelerator, with the slightest to much pressure on the accelerator making the engine slow down ' but it would always tick over' no lights came on the dash, and if I turned the engine off, it would restart easily, this continued for about 10 miles, then it cleared and the car drove as normal. So I fitted a new fuel filter, thinking that maybe the car was experiencing some fuel starvation, after this the car drove as normal for about 3 weeks, then on Sunday I had exactly the same problem which also lasted for a bout 10 miles again before clearing and again the car is now running fine again.

So I was wondering if anyone here has experience the same type of problem, and if so did you find the fault.

[ron]

I can only suggest you check all connectors are sound/clean.
It may also help to clean the MAF sensor.Have you ever used a good quality fuel system cleaner?

[Barry]

Today it was also suggested by someone else to clean the two sensors between air filter and engine, so I have had both of these out and cleaned then with some cleaner as they were both both very dirty with a oiley substance of them. The connections were all clean, but as this problem appears to be very intermittent I will not know for a while if I have fixed it or not.

[ron]

As above,Barry.It's the connectors you don't check that give the trouble.Good luck.:thumbsup:

[Barry]

But I would had thought that if there was a electrical connection problem, it would give the ecu and fault and in turn put my engine management light on.

[ron]

Intermittent faults don't always register.Do the simple checks first,it works out cheaper if you fix it easily.That's just my humble opinion.

[polar]

when was the last time you replaced the plugs?

try some fuel system cleaner like millers - cant hurt as it could be an injector sticking

[addo]

Two things good to check on PSA cars of this vintage.

First your battery terminals - they can go high resistance, low current on an intermittent basis. Second, if this car has the short accelerator cable to a throttle potentiometer in the engine bay - it may be wear to the potentiometer track.

[Barry]

Intermittent faults don't always register.Do the simple checks first,it works out cheaper if you fix it easily.That's just my humble opinion.

Intermittent faults are a pain, but at least the car is still driveable when it happens.

when was the last time you replaced the plugs?

try some fuel system cleaner like millers - cant hurt as it could be an injector sticking

The car is coming up for a major service including cam belt change, so I will be replacing the plugs then.

Two things good to check on PSA cars of this vintage.

First your battery terminals - they can go high resistance, low current on an intermittent basis. Second, if this car has the short accelerator cable to a throttle potentiometer in the engine bay - it may be wear to the potentiometer track.

Battery terminals are good and clean, I have already checked these. My accelerator cable goes straight to the inlet manifold butterfly.

[addo]

When it exists, the terminal faults are inside the crimp. It's a sneaky but too common fault.