Mechanics

WONT ACCELERATE OR IDLE!!

2001 Saturn L100 • 4 cylinder FWD Automatic • 86,000 miles

2001 Saturn L100 Sedan
4 cyl Automatic Front Wheel Drive
2001 Saturn L100 Question

Real sluggish to start, then builds up speed, but then at stop light I tried to accelerate, and it started to die but then caught acceleration but found that my car wouldn't go faster, yet the rpm needle was at 4. Error codes were read at 300 and 420 but dont know what those are. What could be wrong?
The car is a 2001 Saturn sedan.
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Pyrex
July 31, 2011.



Random misfires and catalyst problem-Have the exhaust system check for restriction-catalytic converter could be clogging up-start here

Rasmataz
Jul 31, 2011.
Already replaced the catalytic converter, checked clogs, and inspected fuel injectors, both are good.

Tiny
Pyrex
Jul 31, 2011.
Check and test the oxygen, coolant temperature sensor and engine compression check-P0300 is normally caused by vacuum leaks and contaminated fuel-

Rasmataz
Jul 31, 2011.
Trying it now. You genius! What can my super hero tell me about po420?

Tiny
Pyrex
Jul 31, 2011.