CAUSES OF P0300 IN AN 01

2001 Buick Century

Tiny

burrdan

January, 3, 2011 AT 10:59 PM

I have an 01 buick century Custom 3.1 or 3100. Code p0300 comes up and engine light is on. I have changed the wires, plugs, coil packs, ignition control module, checked the injectors, comression, and the air mass sensor. Everything is in spec. What else would or could cause the misfire? Any chance the computer may be going bad or malfuctioning?

FOUND 187 RELATED QUESTIONS

P0300

13 ANSWERS

How To Fix Dtc P0101&p0300

2 ANSWERS
5 IMAGES

1 Answer

Tiny

legitimate007

February, 17, 2011 AT 3:34 PM

Intake manifold gasket, egr valve, catalytic converter, check hose coming from the air filter for cracks and holes, and throttle body gasket, all of these are possibilites for multi misfire

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