[erroet]

I bought a 03 Sante fe w/ the 3.5 liter about 2 years ago for just dirt cheap! It ran fine till 6 months ago. Right as the weather cooled down here in South Alabama. I started getting a really high rev for about 2 seconds when started then it'd be fine. It did that for a while, then progressed to idling at about 2k and not going faster then 20mph. I scanned the PC, said tps sensor, bought one, nope, then MAS, bought one nope. The lady at the Auto shop suggested an Air control valve.... so I buy the one for it, For the life of me can't find it! Or at least the part i ordered from rock auto! A friend works in a shop, his "lacky" looked up the manual and said it didn't have one. after it sitting for far to long i buy a o2 senser removal tool, remove it, It cranks up. So i replace the cats....seems good, cold spell comes on....NEVERMIND!

My last thought is i have the typical EVA canister issue that comes with these. Its jury rigged to say the least. The vent line is t'd and a fuel hose goes up to the fill and is plugged with a bolt. I put an fuel filter between the eva and tank to trap any charcoal coming from the canister. I verified that the fuel vapor vent solenoid held a vacuum.

At this point I'm at a lost cause. Its just a second vehicle, i don't want to keep throwing money into it, but i also don't want to keep paying insurance on it just sitting. Any thoughts would be appreciative. I promise to post a follow up with the fix!

 

[camper]

Check oil control valve. Bad ocv can cause rough engine idle and hard to speed up. May also be the timing belt

 

[AUTOSPARK]

So what exactly are the symptoms your suffering from now? What trouble codes are being logged?

Like the idle air control valve, you might have trouble finding the OCV on your engine. I don't think it has one of those either.

 

[erroet]

no codes popping.When its cold it will just turn over no start. When its warm, it will start but rev really high then go to normal, and a lag in acceleration the first few times you press the gas, then its fine.

 

[AUTOSPARK]

If it doesn't start when cold, how do you get the engine warm?

Have you checked the output from the engine temperature sensors (ECT & IAT) with your scan tool data display to make sure they are showing plausible values?