dtc 0300b

[Yaba3800]

hey i had this code on my fails since clear and it has something to do with the way my car has been running( hesitating horribly, shuddering/vibrating) has anyone else had this problem. the code says engine misfire

[98Camaro3.8]

I assume you mean P0300, since there is no such thing as B0300. B codes relate to the air bag system, P codes are for the PCM.

P0300 is the generic code for a multiple misfire. The PCM is unable to determine which cylinder is misfiring. Could be 1 cylinder or could be a few.

Going by the symptoms alone, you've got a bad misfire. The DTC is just stating the obvious.

[Yaba3800]

well i reset the codes today and it hasnt come back yet. my auto teacher says it could be alot of things..including injectors, or my ign. components. so i dont have any idea now. is there anyone that has had this problem?

[98Camaro3.8]

Thousands of people have had a car that misfires. Start with the obvious: plugs + wires. Then check fuel filter, injectors, coils, ICM, fuel pump, etc.

[shenanigans]

Originally posted by 98Camaro3.8:
Thousands of people have had a car that misfires. Start with the obvious: plugs + wires. Then check fuel filter, injectors, coils, ICM, fuel pump, etc.

what he said, but definitley start with plugs, wires, coils

[Yaba3800]

plugs are brand new, wires prolly have 90k on em. fuel filter is brand new, coils and all that are being replaced monday with msd, so i dunno. how much mods would require me to get a bigger fuel pump?

[98Camaro3.8]

Originally posted by Yaba3800:
how much mods would require me to get a bigger fuel pump?

If you're NA, there's no need for a bigger pump. If your current pump is actually going bad, though, the common upgrade choice is a 255 lph Walbro.