Had the check engine light come on it gave me a code 25 and 14 so i started throwing parts at it new mass air flow meter,coil,both o2 sensors,new Magnaflow cat, Magnaflow muffler just because ! cap,rotor,plugs everything seemed to be running good then i noticed it was idling a little high so I got the idle to drop and it was running great. parked it to do a few other things jumped in it a couple hours later and it doesn't want to stay running acting like a vacum leak could'nt find one then all the sudden it is running great again ! I think awesome park it go back in an hour or so back to it not wanting to idle . What should I check ?

 

Start with your keyboard. It's much easier to understand your question if you use, oh, periods and commas.

HOW did you get the idle to drop? Why don't you try setting the idle back to where it was before? Runs-poorly-when-cold could be idle is too low.

You might also have a dirty cold-start injector. Before you horse around with disconnecting fuel lines (you need to replace the aluminum gaskets every time you do that), you could try disconnecting the electrical connector to the CSI. If it makes no difference to cold-starting, that will give you a place to look.

There's also the IAC, but I'd look at the others first.

 

Did you ohm the TPS sensor or check it?

 

Sounds stupid but while/after you did all this did you have the battery disconnected so it can re-learn itself ? Not sure this does apply, but I know everytime I change sensors and what not, I disconnect the battery so it can ( re-learn itself )
Just my input, Jeff

 

No i didn't test the tps I ran outta time. I'm gonna try to get to it this week. scope103 I like run on sentances sorry for the bad grammer. And no I didn't disconnect the battery didn't even cross my mind.