Im cleaning my TB and went ahead and partially removed it and wondered if anyone did this and did u resuse the rubber o ring seal and if so did you use any oil lubricant? Im reading mix answers and if so, what type of oil/grease to use? Thanks

 

When I cleaned my TB's, I used new o-ring seals. I did NOT use any oil or sealant. As long as your existing sells are not cracked or "dry rotten" I think you'll be fine.

FYI, the FSM does not call for any "lubricant" on those seals either.

 

@ILM-NC G37S Thanks !!! Yeah i looked at it and looks good, no cracking and or brittleness etc... i didn't even think about replacing it... will order one just in case but will seal it back up as is...

 

Soooo... briefly... car suddenly started idling rough at a stop, then progressed to in park later that evening. Next day all was good no engine codes... drove a few miles and it came back and worse and i got a P0304 code(cylinder #4 misfire) so i decided to check and while at it cleaned TBs, MAF and PCV ... i did decide to swap the coil pack from 4 to 2 and it still runs like sheeit but the code went to p0302(#2 misfire) ... so can a bad coil pack make it run really rough like that? Im guessing yes, but just checking if I'm missing something else etc... in process of finding a set and will order but figured some real world help would be appreciated!

 

You kind of answered your own question. Your left arm was hurting so you switched your watch to your right and now the pain moved to the right, I would start with that...

 

😂... dude... even a snarky answer is a good one from you lol.. yes , I presumed as much, just didn't know that coil pack made it run so bad... i did just replace the coil pack for #2 and after cleaning MAF and PCV and throttle bodies... wow... so smooth and power and shifting is so much improved!!!! Will see if mpg improves too..

 

Not many engines will run right on a missing cylinder. It's safe to assume this in the future.

You did get to a point not many get to and is switching the coil, most folks go directly to ask for help upon this so props to you.

 

Lol... yep... I figured as much , just didn't do the cylinder connection lol... and thanks man, i actually learned a lot from your build thread!!!!!

 

Hey guys So I have a 2014 q50 3.7 recently change my spark plugs and clean my Throttle body before tuning my car. ( I didn't change the gasket of the thorttle body) I run the car for like 30 min idle was going stupid, I thought that it need a iddle relearn which I try but it work for some miles than problem came back after I decide to send data logs for the tune hoping that it was just a iddle relearn but apperently is a problem now.
I send some data log to my tuner he say it was leak of air some where in the driver side after the maf sensor. to check for the intake boot or my pcv side hoses
What do yall think is the issue?

I also replace this hose since it was crack on the driver side( don't know if it has something to with it ) is not oem tho
but I notice my fuel trim long term bank #2 is reading (103)%

correct me if I'm wrong but this are pcv hoses(passanger

correct me if I'm wrong but this are pcv hoses. Anyways this one is missing a clamp lol. Will this have to do some problem with my bank 2 since is almost on the passanger side

I push down on this one and it move. it does have the clamp(passanger)

reference

 

Lets keep this issues on the tread you created.

 

sorry dude... i dont know enough to help , as im barely figuring out my issue lol, but yes, do know that the hose is pcv hose, follow it to the PCV valve for either side and again, far from an expert but since the PCV is pulling air from the crankcase and if seal is not tight, maybe it will mess and give code.. im at the point of replacing mine, as i cleaned them with MAF cleaner and heard the rattle but at this point I'm trying the simple stuff i can do to see if its an easy fix... good luck dude and hope it helps...