My car's been idling kind of rough lately so I decided to do a tune-up which I posted not too long ago. Changed the plugs, wires, cap; new oil, tranny fluid, K&N air filter, etc.

It took some of the roughness out but it still has a slight vibration to it just sitting in park. I really don't know how else to explain it but I hope one of you guys could tell me how I can solve this problem. Thanks in advance.

 

Any codes? I would check fuel filter, try to clean fuel injectors. I had a rough idle after the SWAP, so I used Sea Foam (1/2 directly into intake manifold, the other half just poured into a gas tank). Car idles perfect, but now i think my EGR valve is going bad again!

 

I haven't checked any codes, I'll go take a look at them whenever I get around to getting out of the house today. My first day off in a week and a half so I'm particually lazy today haha.

Thanks for the reply, I'll probably end up checking out the fuel filter and everything tomorrow. I know the intake manifold is pretty grimey, I got a look at them not too long ago when I was changing the spark plugs. I'll check out the sea foam, too.

 

I'd clean the IAC (Idle Air Controller) they get gummy and cause idle issues ... sometimes the seafoam is enough to clean them up

 

After you two telling me about it, and then YouTubing it, I'm on my way to get a can of SeaFoam =D

I'll repost results later.

Oh and BV, if the SeaFoam doesn't clean the IAC, how can I do that manually?

 

Also, I've had this bottle of heavy duty engine degreaser in my car since I did the tune up but never got around to cleaning it. I figured since the engine is cold right now that I'd clean it off, trying to get some stuff accomplished today.

Anyways, the can says to cover up electronics, air filters, etc. I was wondering exactly what should I cover up as to not cause water damage? I figured the battery, the ECU, fusebox and the air filter box; but I'm not too sure where to go from here.

 

2.5's are on top of throttle body I normally unscrew it then use carb cleaner or TB cleaner if it's really bad scotchbrite ...

 

Normally best on WARM engine ... Cuts grease/grime better ...
Also cover Distributor cap and wires I wrap them in saran wrap ....

 

I did the SeaFoam thing earlier today and I have to say I can't really be happier with the outcome. It didn't smoke as much as some videos as I've seen or as some people have said. But it did a good job nonetheless.. still has a slight vibration in it, but nowhere near how it was before.

 

we fogged the neighborhood on the boys beater 150k mile camry ...