I’ve recently had some sensors replaced and have been having issue ever since.. I got the cam and crank shaft position sensors replaced and 2 of the 4 oxygen sensors along with the MAF sensor AND... replaced the spark plugs and ignition coils... now my VDC OFF, SLIP, AND CHECK ENGINE LIGHTS all come on.. I’ve done the idle relearn, the throttle body relearn and the ecu relearn and it always pops back up... even worse is as of the past 3 days... none of the relearn procedures work first try anymore.. can someone please tell me what I’m doin wrong??

 

Start with the basics: What codes do you have???
Only OEM and Hitachi cam and crank sensors are recommended for these cars. Aftermarket units (for whatever reason) don't seem to play well.

 

that might be it because I have some aftermarket headers I didn’t know about I just tried to get it smogged and it wouldn’t pass

 

Still didn't post what codes the car is throwing.