Hey guys,
I did a search but couldn't exactly find what I was looking for...maybe i used the wrong terms.

This is on an NA
If on startup, the idle is rough, but once it's warmed up to a degree (maybe a hair past the low end of the temp gauge), the idle is extremely smooth, what could the problem be? The car's losing a slight bit of coolant, but I don't think it's a blown coolant seal as i tried starting up the car with radiator cap off, but didn't see any bubbles or what not and the engine isn't overheating even at wide open throttle for 15-30 seconds. A friend of mine mentioned that the TPS might be faulty...

any ideas? also, i have no clue where the coolant's leaking fromt

melloboy

 

Clean your bypass air control valve, and do a full tune-up, a rough idle is common on start-up, nothing much to worry about.

 

Find & fix the coolant leak.

And also keep track of the cold start symtoms, to see if thay get any worse.