Engine hunting / emissions

2001 Skoda Fabia 1.4 8 v hatchback
Car: Skoda Fabia
Year: 2001
Variant: 1.4 8 v hatchback
Categories: Running Rough, Starting & Power Loss
help please.. MOT had to be aborted on emissions test..engine hunting badly..high emissions readout..changed front lambda,and MAP sensor..still the same..advice please..
Problem added: Jan 6, 2012 (12 years ago)
I'd be looking for induction leaks,cracked hoses,loose hose clips,burst,loose or missing vacuum pipes.
anywhere that air can get in after the air flow meter.don't forget the crankcase emission system,or the fuel carbon canister/solenoid.
Sorry I can't be more specific but I've found air leaks like yours everywhere!
Answered Jan 6, 2012 (12 years ago)
If no leaks check idle air control valve for operation
Answered Jan 6, 2012 (12 years ago)
if you have a motorised throttle i would check to make sure it isnt gummed up and sticking, as well as the other suggestions
Answered Jan 7, 2012 (12 years ago)

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