Yeah, I noticed that after I installed the pulley my voltage kind of drops at idle a bit. When I have my headlights and foglights on and am just idling without any throttle the dash lights will dim up a little bit as well as the headlights. When I give it a little bit of gas it will brighten up the headlights and dash lights then dim again as it drops to idle.

Nothing wrong with my idle though. It's roughed up a little bit but really not much of a problem.

 

How many miles are on your car? My idle slowly got rougher as I put on more miles... I had a ES before and it did the same thing... so I assume it is normal... unless it is dying I wouldn't worry about it...

 

I have like 22,000 on it. I am going to try putting the old one back on (only momentarily) and see if the timing is off, even though everyone says that it probably isn't the problem. Just to be on the safe side. Hey, if nothing else, I get some practice at doing it again. When I take the new one off, and pop the old one on, I am not only going to look and see if the marks match up, but also let it idle and see if it is still there. Keep ya posted.

 

I assure you it's not timing. The crank pulley in no way shape or form has anything to do with timing. That's a different pulley and belt underneath the cam cover.

 

Update: I worked on the car on Saturday. I changed the pulley back...Same problem. I checked spark plugs all looked pretty clean. Talked to a mechanic, he said it is definitely missing. Suggested getting system diagnosis to find problem. He said he thinks the missing may be coming from a sensor going bad or something. Since I have the after market pulley off anyway I am going to try to get Mitsubishi to diagnose the problem. I guess I will throw the stock airbox back on, so I don't get any harassment. Anybody got any idea what may be the miss origin?

 

I hope it doesn't turn out to be the coils. I haven't run into any problems with mine yet at 47k miles, but some cars (4th gen Maxima comes to mind) were notorious for the coil-on-plug coils going bad.

 

well i am hoping the same thing, but warrany would cover that though right? If the run a diagnostic on the car they can tell if that is it also, right?

 

Maybe. Did you put your stock intake back on? Mitsu dealers really love voiding warranties, and will try very hard to convince you that whatever aftermarket widget you installed is what's causing your problem.

A diagnostic scan will only tell them if anything has thrown a code recently, and if so, what it is. If your misfire hasn't done that, the scan won't tell them what is causing it. They might be able to measure out the coils with an ohmmeter, but that's not always a reliable indicator. Sometimes the problem only surfaces at operating temperature, and they ohm out fine when cold.

Take it in and see what they say. As long as you returned it to as close to stock as possible, it should be a warranty repair.

 

I got an appt with Mitsubishi in the morning. I am hoping they can figure out the problem. Hopefully something simple. I am expecting from what the mechanic was thinking it might just be a sensor. If so, I will try to find out what may have caused the problem and what they are hopefully going to do to fix it.

 

UPDATE: I went to Mitsubishi this morning. They ran tests, and came back and said that it was the plugs. Well, to my surprise... The service person said "Well, your tune-up doesn't cover spark plugs, since they are only good for about 15,000 miles". Dude WTF, do they think I am retarded? Then to top it off, they said, "Since your plugs aren't covered, it will cost $239.40" (U.S. Dollars). I almost hit the floor. I said, "So you mean to tell me you want to charge me $239.40 to put 4 plugs in my car"? She said yes. I said, "well how much does each plug cost"? She said $5.00. I told her that I would buy them, and install myself. So she says, "Well, just wait here in the waiting area, and I will bring you your plugs and invoice". She comes back, and said, "Well, I talked to my manager, and he said to tell you to come back Friday and we will pay for the plugs". She also said, that the test showed no return codes for any sensors going bad or anything else, so the plugs were the diagnosis, that the mechanic gave. Anyway, to make a long story short, I read the forums quite a bit, and for her to tell me that Mitsubishi's plugs only last like 15,000 miles blew my mind. I know that our plugs are pretty high end also. So I knew what she was saying didn't add up. Let me know what you guys think about the situation, or similar instances you have had.

 

shouldn't that be covered in your 'bumper to bumper' warranty? I had a headlamp blow after a year and a half, and it was replaced no problem, and i was expecting to pay. When we were all said and done, they gave me my keys and told me to have a nice day. Oh and I was 5 hours away from home and just thought i'd stop in at the local dealership there. Certain things such as clutch, and brakes they won't obviously replace, however faulty spark plugs...
Why not try calling another dealership, tell them you think your spark plugs may be malfunctionning and see what they say and if its covered under warranty.

 

$239.40 for friggin spark plugs?
After the initial shock wore off, I think I would have laughed in her face, and then left.

15k miles? Mine are still going strong at 47k+. Expect to pay $12 or so per plug retail when you have to replace them, but these are very nice plugs, and definitely last more than 15k. She might be thinking they're the same as the copper plugs used in the 2.0 liter models.

 

see the thing is... I knew something wasn't right. I mean come on man, you mean to tell me that she thought I was stupid enough to believe that our plugs are only going to last 15,000 miles? I had 2 different galants before my new ralliart. The only problem I ever had, and I made sure not to mention... When I had my last galant, I put Split Fire's in. Man, not 2 weeks after, my fuel sensor went out. Guess who was willing to fix, pay for, and even give me a rental (knowing that I, had changed the plugs to aftermarket, which caused the sensor to go bad)? Mitsubishi. So, if she thought I was going to let them charge me to replace the plugs, she was crazy. But the bottom line is, I was worried about what made them foul in the first place. Reason being, when I pulled them out to look at them, they all looked pretty clean, and looked like they had burned evenly. I was thinking that might have still been the problem but considered possibly something else. I just hope that cures it. But with no fault codes being detected, then maybe the plugs did just foul for some reason. Do you think it was because maybe the air filter was pretty dirty (AEM SRI)?