Welcome to the James Barone Racing Forum - Upgrade your Mazda with High Quality Parts at Great Prices from JBR!
Upgrade your Mazda with High Quality Parts at Great Prices from JBR!
Results 1 to 11 of 11

Thread: Code P0303 #3 Cylinder Misfire

  1. #1
    Registered Member

    2001 Mazda Protege MP3

    Join Date
    Jun 2010
    Location
    Heidelberg, Germany
    Posts
    26

    Code P0303 #3 Cylinder Misfire

    My 2001 Protege started running rough about a week ago. I thought it was the transmission but tonight the Check engine light came on. I read the computer and it had the P0303 # 3 cylinder misfire.

    I am planning a tune up, Plugs and wires, new PCV valve. I had the Pre- Cat replaced a year ago. Has anyone on here had the same issue? If so what did you do to resolve it?

    Any help will be appreciated guys.........

  2. #2
    Registered Member

    2002 protege 2006 3

    Join Date
    Jan 2010
    Location
    Seattle
    Posts
    12
    Hi . I had the same issue U do (2002 lx). Changed the plugs and wires and reset the check engine light, after 40 miles it went back on and I couldn't get rid of it. Than changed the coils with used ones - didn't help. The dealer recommends to put new coils and wires , but they R total of 300 + tax and I do not believe that this would solve the problem. In general the car runs well with the same good gas millage and only from time to time runs purely for seconds which makes the ch eng. light to start flashing for awhile and than go back to steady. I am not planing to spend 300$ to see if they R right so for now I will stay like this , but if any one has an idea , I would test it .

  3. #3
    Registered Member

    2002 protege 2006 3

    Join Date
    Jan 2010
    Location
    Seattle
    Posts
    12
    Hi . I have the same issue U do with my 2002 lx. Changed the plugs and wires and reset the check engine light, after 40 miles it went back on and I couldn't get rid of it. Than changed the coils with used ones - didn't help. The dealer recommends to put new coils and wires , but they R total of 300 + tax and I do not believe that this would solve the problem. In general the car runs well with the same good gas millage and only from time to time runs purely for seconds which makes the ch eng. light to start flashing for awhile and than go back to steady. I am not planing to spend 300$ to see if they R right so for now I will stay like this , but if any one has an idea , I would test it .

  4. #4
    Canadian eh? CulRidr's Avatar
    Donated: $10

    Laser Blue MP3

    Join Date
    Jan 2006
    Location
    Ottawa (ON), Canada
    Posts
    2,345
    New coils would be the first thing I would do, especially if they are old and have lots of mileage. Keep us posted on whether it works or not.
    MY BUILD!
    Go
    Engine:Custom 421 header&Magnaflow midpipe,RB catback w/CS&Kartboy hangers,K&N CCAI,Medieval pulleys&MMs,NSN spacers,Twiggys,SpeedCircuit stage2,FSZE pistons,Fidanza flywheel,adj.cam gears,AWR pan
    Suspension:Bspec&Aspec,AXR,GTspec links/cage, Autoexe tie bar,RacingLine endlinks
    Wheels & Brakes:Yoko AD07,MSP front brakes,KVR lines,HPS pads,Kosei K1s w/RE01R(autox)
    Transmission:welded MSP LSD,TWM SS w/bushings,CS clutch line,626 5th gear

    Show
    Exterior: painted rims & emblems,Mintblue grill,smoked clear sidemarkers,foglight deletes,LED&chrome bulbs, painted calipers,Tribute nozzles
    Interior:NGK AFX,Prosport gauges,daveBs,MS sidesills/mats/centre console,SD Boots,LED lighting
    Engine:Optima,painted/cut valve cover,hood props,ADP,grounding kit,Gujustud
    Audio:Sirius

    Not yet on the car
    Xpel headlight covers,XC eyelids,MZ3 mirror,secret project,Kenwood upgrade


    OttawaMazda

  5. #5
    Registered Member pat_neumerz's Avatar

    MP3 258/1500 [blue]

    Join Date
    Oct 2006
    Location
    Thomaston CT
    Posts
    188
    Coil i concur. Same error message and i opened the engine cover to find one of the coilpacks to be sparking. I didnt want to by a new one at the time due to money, so temporarily i siliconed the top, worked like a charm until i could afford a new one.

  6. #6
    Registered Member

    2001 Mazda Protege MP3

    Join Date
    Jun 2010
    Location
    Heidelberg, Germany
    Posts
    26
    I purchased new coils, decided to change both of them at the same time. Replacing wires and plugs too. I am waiting on them to be delivered, it sucks having to order everything since I am in Germany. I will update you guys as I go.

  7. #7
    Registered Member Mustang Matt's Avatar

    2001 Mazda Protege MP3

    Join Date
    Sep 2005
    Location
    Missouri
    Posts
    144
    Where's the best place to pick up new coils? I'm >165k miles and I know I'm on borrowed time.

    Current: 1998 Atlantic Blue 'Terminated' Cobra : 1996 Black Turbo Cobra : 2005 CTS-V : 2001 Mazda Protege MP3

    Former: 2004 Suzuki sv650s : 1998.5 SVT Contour : 1987 GT whipplecharged convertible : 1994 Kawasaki Ninja 250R
    My automotive calculators

  8. #8
    Registered Member

    2001 Mazda Protege MP3

    Join Date
    Jun 2010
    Location
    Heidelberg, Germany
    Posts
    26
    AutoZone has some cheap ones listed for $30 a piece, but I am not sure of the quality. I bought mine from onlinemazdaparts.com for $83 and some change. I have purchased parts through them before and have been happy with the quality so far. Shipping is fast to.

  9. #9
    Registered Member Tzar177's Avatar
    Donated: $15


    Join Date
    Jul 2005
    Location
    Northern Kentucky
    Posts
    2,804
    I have autozone bought coils on my car now and they have been good for several months now
    Fuelly

  10. #10
    Registered Member

    2001 Mazda Protege MP3

    Join Date
    Jun 2010
    Location
    Heidelberg, Germany
    Posts
    26
    Well I replaced both coil packs, plugs and wires. Been driving for awhile now without any issues !!!!!!!

  11. #11
    Registered Member DarthNewky's Avatar

    260th MP3, Blue Mica

    Join Date
    Feb 2002
    Location
    Winfield, PA
    Posts
    38
    Quote Originally Posted by GermanMP3 View Post
    Well I replaced both coil packs, plugs and wires. Been driving for awhile now without any issues !!!!!!!
    Just wanted to say that I did the same a long while back, had the random misfire code and replaced both Coil Packs. Ran like a champ until I tried to drive it like a boat.
    Proud Owner of the 260th MP3 off the line

    MODs:
    Injen Blue CIA, 120 volt outlet in rear of center console(push button on, inverter in trunk), RCA jack for Audio/Video

    Blown Tranny at about 167k...Hydro Locked at about 196k...Cylinder Head gasket and valve stem seals 197k

Similar Threads

  1. P0303 Cylinder 3 Misfire (video)
    By smolds87 in forum MSP Problems & Help
    Replies: 5
    Last Post: 08-08-2010, 11:16 PM
  2. CEL code P0303?
    By motopilot in forum Protege Lounge & Welcome Area
    Replies: 1
    Last Post: 03-02-2009, 12:15 PM
  3. "multiple cylinder misfire" code...please help!!
    By Vic Marr in forum Protege Performance
    Replies: 4
    Last Post: 05-30-2006, 05:14 PM
  4. Cylinder 3 Misfire P0303 and stupid dealerships
    By DarDar in forum Protege5 Lounge & Welcome Area
    Replies: 2
    Last Post: 07-01-2004, 09:46 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •