2000 Vauxhall Astra engine

Car: Vauxhall Astra
Year: 2000
Variant: 1.6 Petrol
Categories: Running Rough, Starting & Power Loss
hello
  I have a problem with the engine, the engine code is X16 SRZ, 8-valve, petrol (75 hp)
When I start the motor, he himself once throttle, without my depressing the accelerator pedal, and so accelerates to 2500-3000 rpm
  accelerating normally, the sound is a little weird, every 3-4 seconds hear a quiet "boom boom"
dashboard is ok, none light does not show at any mistake
when connected car diagnostics, does not show any mistake
can you give me some help to solve this problem
thank you in advance
Posted: Mar 6, 2014 (10 years ago)
Check / replace idle air control valve , clean throttle body .
Posted Mar 6, 2014 (10 years ago)

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