camaro 2000 problem code p0300

Hi, i have a camaro 2000, V-6 3.8, and i have a problem, i acelerate and my car don´t responde, it starts shaking, when i start the car and its in idle it runs like if i put a big cam.... and its the stock, about a minute or two minutes later it fine.... but then when i tried to put drive and move the car it lose power, if it in neutral and i acelerate the car it seam to be ok..... please help....
i have change the spark plugs, and the coil pack,......

you said you changed the spark plugs and the coil pack.. did you also do the other usuals like plug wires , injectors etc., for a miss

as the plugwires are common

no i haven´t change them, do you have a recomendation for what type of msd fit´s my car, cause i have to buy them in summit racing or parts america, so they will send them to me here in guatemala

Do you have access to a scanner? If so, put it on a scanner and see what cylinder is registering the misfires. Then swap the plug, wires, injector, and coil pack one at a time from that cylinder to another and see if the problem follows. If it does, you know that particular part is defective.

they put the scanner and it give us p0300, and don´t apear any more codes.....and i find that p0300 is random.....

These are the MSD wires that come up for your application: http://store.summitracing.com/partdetail.asp?part=MSD%2D32089&view=32&N=700+4294908216+4294908198+4294924666+4294925143+ 4294840137 I would also check over the car for any vacuum leaks. The plug wires may not necessarily be bad either, they may just have loose connections. It wouldn't hurt to make sure they are firmly seated on the plugs and coil packs.

yeah defintely a vacum leak could be.. other thing in the back of my mind was fuel/air??

they put the scanner and it give us p0300, and don´t apear any more codes.....and i find that p0300 is random.....

it sounds like just a code reader that you are using.. the scanner should give alot more info than just the code (it should give all sorts of live vechile data).. you could take it in to a shop and have them do the full scaning but it'll probbaly cost about the same as the set of plug wires... and we all know on the 3.8s the plug wires do go wear out reguarrly so I'd probbaly go ahead and swap them first as it really can't hurt, but I geuss it really depends on if you want to drop the $60 on soemthing that may be a "geuss"...

isn't there a way to check the resitance on the plug wires... something like take them completley off the vechile (one by one) then test reistance from plug end to coil end??? anybody know the details

thanks to everyone, i all ready pay for the msd plug wires in summit, i gess will arrive in one week..... in the mean time..... i´m taken te car to a shop and, they have the scanner, the check all the sensors of the car.. i hope we found the problem there.... when i got an answer i tell you

glad we could be of help.... on the car if it's not urgent I'd wait on intstalling the plug wires before takign to the shop to do the scanning.. as if the plug wires fix the problem then no need to pay the cost for the scanning

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?

Hi, all.... well let me tell ya... cause my brake booster has a leak it damage my cat conveter (cause of the misfire),..... it broke down in pieces so my exaust was clogged... no wonder my car can not accelerate... so if this is anyhelp i share the story.... thanks to all of you guys for the help.....

Did you get a SES light due to the cat not functioning properly?

nop.... i dont get SES light, it should.... i don´t now why it din´t came on

the cat... was broke in pieces inside.... so it clogged the exhaust... but no SES ligth s....rare... is it?

Considering there is a post cat 02 sensor that monitors the catalytic converter's efficiency, I would have expected it to post a code. :shrug:

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.

thanks i will check it out

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.

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....

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

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

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!!!!