camaro 2000 problem code p0300

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Mar 19, 2007 | 01:54 PM

#16

mdenz3

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Joined: Mar 2007

Posts: 1,173

Quote:

Originally Posted by juanrosales

hi... again.... well let me tell you... today a recibe a call from the shop... and i have a vaccum leak,... in the brake booster... i need to change it.... thes said to me that when take off the vacumm hose of the brake booster and close the hose... they reset my ecm and my misfire disapear,... but i have another problem ..... they push the gas pedal and the car wont accelerate... sometime more is worng.... today they are going to check fuel sistem presure and a lot more..... do you have and idea that could help me fine what is wrong?

If the cars shakes on accel like you siad with the plugged cat, maybe that caused the p0300 misfire code and the vacuum booster is fine? I would say leave th ebrake booster and check it again after the cat is fixed.
And P0300 is just the code for a misfire(generic OBDII) p0301 p0302, etc would identifiy a cylinder.

Mar 19, 2007 | 08:45 PM

#17

juanrosales

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Posts: 26

thanks i will check it out

Mar 19, 2007 | 10:58 PM

#18

rhino2104

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Joined: Sep 2006

Posts: 6

From: Ft. Huachuca, AZ

My 1999 did the exact same thing. I took it to the shop and they said it was throwing a p0300 code as well as having a clogged cat. They replaced the cat (as it was still under warranty thank god) and after about 60 or so miles the miss went away and the check engine light went out. I still replaced the spark plugs and wires for good measure though. I recommend getting your catalytic converter straightened out and then changing your plugs and wires.

Mar 28, 2007 | 10:49 PM

#19

juanrosales

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Posts: 26

thaks...let me tell you, i change the brake booster and the vacuum leak is gone.... that was cause the misfire.... and well....i also chance the spark plug and wires ... i put msd 8.5mm..... but i have a check engine ligth on still.... cause i have to change the catalytic converter.... but i run out of money... i hope to buy it soon.... anyone knows that if i use may car with out the catalytic converter it will damage my engine..... thanks again to everyone for the help....

Mar 29, 2007 | 11:32 AM

#20

smithtim

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Joined: Dec 2005

Posts: 273

From: Daytona Beach

I'd think it should be fine for a short period of time as the cat is really just to make your exahust more "enviormentally fredinly" ... but it is always best to have everything runing correctley

Mar 29, 2007 | 07:30 PM

#21

juanrosales

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Posts: 26

Ok, i will tell you when i buy the catalytic converter... thanks for the advise....smithtim

Last edited by juanrosales; Mar 29, 2007 at 07:31 PM. Reason: miss spell

Apr 7, 2007 | 08:01 PM

#22

silver6_maro

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Joined: Aug 2005

Posts: 7

From: West Michigan

I just had the same problem with my car...1997 camaro rs, and it was shaking and misfiring really bad....i did a few things that you did (plugs, cat, wires) , and went to autozone to get my coils and ICM checked, and the ICM (ignition control module) was bad...so 150 dollars later, my problem id fixed, and my car runs amazing!!!!