Technical mk2 punto problems

[corrie]

hi all am just new here and hoping sum1 can help me or give sum advice well i have a 1.2 8v w plate punto im having probs with when driving it shudders as tho its going to stall out but doesnt it has no power and crawls out of junctions then bursts into life. sitting with it ticking over the rev counter jumps up n down and a yellow light comes on the dash now n then wen braking iv had it in 3 garages n no 1 can find a fault with it so i wld appreciate if any1 can help whos also had these problems or just who knows wots up

many thanks corrie

 

[undertaker]

have they checked the injectors. it sound like what happened to my a year and half ago but with no light coming on

 

[midget4hire]

I had the same issue with injectors
get them checked out

 

[Mdeko]

The little yellow light coming on when braking sounds like the light out error light. Its will light up telling you, you have a light out (one or more of side/head lights, brake lights . . ). Yous is an intermittent fault so when you press brakes again it probabily dosent come on.

You need to clean all the bulb connectors and earths around the rear lights, these often corrode and give bad connections, hence the warning light.

As for the shuddering, any missfires will be picked up by the EOBD system and the injector light will flash. It sounds like its hesitating, when was its last service?