POOR ACCELERATION, SLUGGISH MOVEMENT

2003 PEUGEOT 406
102,406 MILES • 2.0L • 4 CYL • FWD • MANUAL
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ONALO
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I experience poor acceleration with shooting sounds at times while in motion and stationary, sluggish movement, foul egg smell from the exhaust pipe.
*But when I diagnosed it, I got this result - it says catalytic converter faulty.
*Some times two nozzles will spray while two will not.
what do I do to get back my car on track now?
Jun 9, 2016 at 10:23 AM
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STRAILER
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The foul smell is from too much fuel entering the exhaust which can be caused by an engine misfire or a faulty injector. But to be sure we have a good engine lets start with a compression test.

https://www.2carpros.com/articles/how-to-test-engine-compression

if okay does the engine have good park plugs, change them if needed

https://www.2carpros.com/articles/how-to-tune-up-a-car-engine

Next test the fuel injectors themselves, here:

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

Let me know what you find so I can help

Best, Ken
Jun 11, 2016 at 5:50 PM