misfire

I dont get any codes.Can any expert give me some advice please.heres e the video https://youtu.be/HhH3yyX_pYA

so i broke my pcv valve when trying to replace it to see if i could get to the bottom of my bad misfire situation ( see other post) does anyone know a way i can get that out? after taking my valve cover off, i noticed a plate screwed on to the top it. if i take that plate off would i be able...

Hey everyone. so my 2003 P5 has a pretty bad misfire i know i was throwing the p0300 code along with many others. i finally got around to replacing the upstream O2 sensor but i feel like i took too long. the car was drive-able for a while but it sputters badly at idle it sputters really bad...

Hello all I really need some help. Two weeks ago out of the blue my girlfriends Mazda Protoge5 started running like crap. I took it up to the parts store and read the code which was a P0303 a cylinder 3 misfire. Same thing happened to her last year so she had it in the shop and had new plugs...

My 03 Mazda Protege5 has 4 codes coming up. I'm wondering if they are all related or separate issues. The biggest is P0303 cylinder 3 misfire. Pulled the plug and it looked burnt around the bottom as well as a little charred above the nut. Replaced it but it still feels rough on 10 mile test...

Starting a new thread since this title is more accurate than the "rough idle" symptom I posted before. Here is the story. I bought the a blue 2002 protege5 hatchback for $600 in September and rebuilt the 2.0L FS-DE engine with new rings, bearings, valve stem seals, gaskets, valve lapping...

Hey guys having an issue just wondering if anyone else has experienced this? I looked around and could not find a specific or even close enough topic to match so here it is. I was driving along and felt a slight miss in the engine.....whatever no biggie I was heading to a doctors appt. Well just...

Problem Solved (07/06/2014) The right side Ignition Coil was failing. It was a cheaper after market coil I purchased from Autozone, so I guess I learned today you get what you pay for. Hey everyone, So I've got a problem with my Protege5 and it may prevent me from getting home... which is...

Hi, I bought a used Mazda6S V6 (manual transmission) with 97000 Mi. Before buying the car, I had AAA do a pre-purchase inspection. They found a few items - the valve cover gasket needed replacing, new engine mount, cracked boot. They assured me the engine seemed to be running fine and that...

So my check engine light came on on last Thursday so i went straight to autozone to see what code it was and it read Cylinder 2 misfire, and thermostat problem. So first thing I did was check my spark plugs, which the second one was a little lose in their and it was all black and charred up and...

I was running some errands today when all of a sudden I noticed some shuddering in my shifter. Look at my guage cluster and my check engine light was on. As I pulled away from the next stoplight, I noticed that there was quite a bit of misfiring going on with quite a lack of power. I stopped...

Hi guys, im Corey and new to the forum. A lot of good info here but nothing that can help me answer my question, so here is the scoop. 12/22/12 around 2:30pm went to the car wash, washed the car and decided to pop the hood and do the same ( all with a pressure washer ) also kept the car running...

I have a few odd symptoms and i was hoping some one could help me out with some ideas on what the problem could be. I have a Manual 2003.5 Protege5 2.0, with the 626 intake manifold and AEM intake. Otherwise stock. -Occasional rough idle. -Rough idle gets worse after long drives. -Low start up...

Title says it.. Replaced plugs, wires, coil packs, fuel injection cleaner. I do not have any power issues, it idles high when the engine is cold but sits at about 600 rpms when warmed BUT when idling it does fluctuate maybe 50-100 rpm. I planned on cleaning my egr valve this weekend but im...

So I've never had a car act like this before and it has me stumped. When I accelerate hard and hit 10-11 psi sometimes it feels like I jabbed the brakes as hard as I could. Besides that it runs good. It started doing it when it got cold, coincidence? up for debate... What is wastegate...

I have a p0300 code wich is a random misfire i havnt had all these symptoms like other people have. I felt a chug like once while driving on the interstate I changed the spark plug wires and the coils have the same specs as a brand new one. Can anybody give me any idea what to look for it im not...

Hey all! Got a Protege5 with an intermittent misfire; gives codes p0300 and p0660. Replaced the plugs and wires (except the coils) and cleaned the EGR valve, no change. Sometimes she fires up fine and will drive a few miles, mostly she just misfires or idles very roughly. I'm kind of low budget...

I have a problem with random misfires that i cant figure out. I have recently replaced the spark plugs and wires. i somehow think its related to my intake. I had a friend (without my permission) cut the plastic connecting piece that went near the radiator off, leaving a gaping hole on the intake...

After My install of a 626 intake manifold along with the mp3 ecu I have been experiencing a misfire for the past month. At first I thought is was due to a faulty spark plug which i replaced and the problem seemed to go away but now came back. I then replaced the wires and a week later the...