Black_Mercedes

Can't figure out whats wrong with the car. No check engine lights.

I could use mechanical god right now. No check engine light. Car shakes like an earthquake. Sounds like the throttle body is pulsating opening and closing.
I've changed CPS sensor mass air flow sensor replaced all vacuum hoses. Brand new plugs and wires resealed all valve covers. New engine mounts.
I can't think of anything else about to sell this as a parts car very soon if I can't figure it out

Black_Mercedes

Nobody have any idea?

tjts1

Without a proper scan tool you're wasting your time.

Black_Mercedes

Whats a proper scan tool? I have Carsoft 7.4 and many different devices to pull codes. Nothing is stored on the car with no check engine light

tjts1

Check live data with the engine running. Throttle position, smooth running, misfire count, temp sensors etc

Black_Mercedes

WELLLLLL i fixed the issue. A piece of plastic was stuck inside the EGR valve causing it to stay open. I removed the EGR valve and removed the red plastic clip that came from the DIPSTICK plug. One of the fingers broke off and lodge itself inside the EGR valve. OMFG. The car idles so smooth you can't even tell its running. Just wanted to share the update!