what country, what engine, usa has 3 engines in that car.
cant guess.
IF CEL is on, pull code, knowing the trouble code is invalueable !!
it is expensive thowing parts at car. (
Here are some things that can cause it
Muck and grime behind throttle plate ( common issues on may cars)
causing butterfly valve to not close properly or small ports in this area are filty.
no one replaces a TB. we clean them.
vacuum leak , any hose, or diaphram cracked, test with mityvac tool.
Egr messes up, and leaking. ( usually causes IDLE drop but maybe ECU is trying to compensate and doing poorly at it, not uncommon)
Let me guess at 1.6 liter engine Location questions:
EGR - bolted to rear of manifold Intake, remove and clean valve
IAC/ISC , below trottle body front lip. remove lean it and inside manifold
YOur car just might need a full tune up.
and cleaning PVC, EGR and ISC passages are all part of that process.
when cars dont idle , most times it is just simple maintenance that needs done and not really a parts failure.
Checking every vacuum hoses for leaks and cracks and breaks is a simple check.
good luck.
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