rough idle

I just bought a 2003 Mazda Protege DX Manual transmission 135k miles and have been having issues with rough idle. At emissions it threw a p0303 CEL light for cylinder 3 misfire. I noticed a small pool of oil near the #3 spark plug boot, took boot out, fair amount of oil on it as well as oil on...

I was running late, so I started with some quick shifts and high revs right out of a cold start, then a stop and a quick u-turn. Within sixty seconds (right after the u-turn) I noticed that my acceleration had gone from peppy to pathetic. I drove about 40 miles and went from 1/2 a tank to 1/4...

(FINALLY SOLVED!!!) Massive smoking issue & other problems... 2003 Mazda Protege5 The ending of the saga... is happy - and can be found on page 7/8.... loving my P5 once again! (updated October 19, 2015 - tried to change the title of the main thread but I guess you can't)...

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...

2014 Mazda 6 Touring ~ 14k miles Car seems to idle a little rough when in gear and idling. Mentioned it to the dealer twice, but they say they don't see anything wrong with it (doesn't do it when they test it). Anyone else having similar idle issue? Thanks, Jess

Hi All, Just looking for some answers - and feedback. Hope you can help. I purchased a new 2014 CX-5 Touring FWD June 21st 2013 Everything was great for the first 13 days. After that, I noticed the car started to shake in idle. So I call the salesman who sold me the car and he told me to...

Ok, so everyone with a protege seems to have the same problem, however i dont think the solution has been the same for everyone.. or some ppl just THOUGHT they fixed it with something but it came back.. so here it goes. I have a 02 mazda protege5 2.0 i got the car all messed up, crashed from...

I need some help I am loosing my mind trying to figure this out. I have an Intermittent rough idle, While in gear like at a stop light it will act like a misfire and the RPMS will drop a couple hundred and then back to normal... sometimes at the stop light it might do it a couple of times and...

2002 Mazda Protege 5 at 102K. Automatic trans. Very rough idle, wants to stall. Drops about 2-3 RPMs regularly. Only at idle. Timing belt, idle air control valve, and air boot replaced recently. No good. Getting worse. Accessories off or on - doesn't matter. Warm or cold - doesn't matter. Now...

Hey guys, I've posted about this before. I've had a cylinder misfire issue, but for a while it seemed to go away. Now its back. Its been getting worse. I've pulled all the plugs and coils and I'm confident its not an electrical issue. Haven't tested compression yet... but I wanted to run...

The 02 p5 makes a rumbling sound after stopping at a stop light. rough idle. it was doing it twice a week before. today the rumbling sound kept coming at every stop and the check engine light came on. The strange part is that the idle is fine now even with cel on. The rough idle would usually...

We bought this car and are trying to get it up to speed... We've noticed that when the car is stopped (ie redlight) the idle drops a little below the line under 1000RPMS and gets rough, if you put the car in park or neutral it idles back up to the line below 1000 and idles smooth. When you...

I turned my MSP on today to discover that it was idling very rough and uneven, and the check engine light is flashing. I'd just ordered and received my timing belt components in the mail and was going to replace the whole thing in a few days - I really hope my timing belt didn't fail just now...

I just bought a 99 Mazda Protege SE (After my brother decided to wrap my 2000 Mazda Protege around a tree) a couple days ago and it has been idling rough whenever I stop at a stop light. It doesn't happen right away (Thus the reason I didn't notice it during the test drive) it only seems to...