po300..please help me
po300..please help me So here is my deal....i am throwing this code and like everyone else (yes i did a search) the car stumbles and shakes from 2K to 3K. so far i have
replaced a entire mass air flow sensor
replaced fuel filter
checked for vacum leaks
check plugs and wires
checked fuel pressure.
everything checks out fine. if i erase the code the car runs fine for about 1 day and then everything starts over again. Can you guys please help me find out where to look and what to check next> Thank you so much
The car is a 98 ls1 camaro all stock but headers and exaust
45K miles on it
6 speed
replaced a entire mass air flow sensor
replaced fuel filter
checked for vacum leaks
check plugs and wires
checked fuel pressure.
everything checks out fine. if i erase the code the car runs fine for about 1 day and then everything starts over again. Can you guys please help me find out where to look and what to check next> Thank you so much
The car is a 98 ls1 camaro all stock but headers and exaust
45K miles on it
6 speed
Teching In
Joined: Oct 2010
Posts: 7
Likes: 0
I solved the problem by changing #8 plug which still looked like original one and had almost no core left. It would still fire so it was not a more specific p0308 code. yes it's the back pass side one that you crall onto the top of the engine to replace after you swing aside the coil rail. I was even getting the rotten egg smell from the cats due to the misfire. and this fixed it before I ruined the cat.
alright i got a new set of plugs goin in this weekend. I am praying that this solves it. its so weired how the problem comes and goes..it seems to me if a plug or wire was shoot it would happen all the time. guess its time to get the knuckles bloody and change all these plugs out.
My problem was the fuse box under the hood, im not sure which fuse my friend replaced, but he installed a new fuse & problem went away, the fuse gives power to the coils, & I had misfire #3 & after all checking the basics plugs wires...etc it was only a dam blown fuse
Soon as you open the hood on your driverside there 2 fuse boxes, one of the boxes gives power to the coils check to see if any are blown, I dnt have a picture of the fuse box
Last edited by ls1jorge; Jan 5, 2011 at 02:46 PM. Reason: Fuse box location
TECH Addict
iTrader: (3)
Joined: Feb 2006
Posts: 2,498
Likes: 3
From: The dirty taint of the country. ...Los Angeles
Funny, never thought to check this. If THIS fuse is blown, does it throw a DTC? Or a specific P0 Code? My problem is a misfire w/o a DTC! Weird!
Trending Topics
I'm not sure, the ses light on my car was only on for the front o2 sensor & misfire #3, P0300 then replaced some blown fuses & problem went away
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo TECH Addict
iTrader: (3)
Joined: Feb 2006
Posts: 2,498
Likes: 3
From: The dirty taint of the country. ...Los Angeles
