If i rev the engine or go fast my engine steams, is it a loose hose? How much will it be to fix

I have to set the egr code for smog and drove 600 miles before taking it to a mechanic for a drive cycle its taken them eight days and they're still getting it to set. As for the coolant temperature sensor, another mechanic was commenting on it not possibly working properly, so would this be why the monitor has not set or would more driving be the case

If u have any idea as of why please verifie

I believe my convertible top is sagging down more than it is suppose to be. When I shut the doors, both windows end up on the outosde of the convertible top. I have to row them down and back up for them to go in right. And even after thay, when it rains water leaks in from the top and side(there's a gap in the side sepreating the front and back windows which is suppose to be connected and have no gap). How should I go about getting this fixed and about how much will it cost including labor and everything?

Car has 240,000 miles. I am wondering if it is worth fixing. It is a 5 speed which has giver me years of excellent performance

The check engine light is on and at idle the tachometer fluctuates between 650-1100 RPM. I went to an AutoZone and they got an "error" reading when they went to check the codes...

My car hows 2 kicker 10's, a new touch screen double din radio, and a flowmaster axle back exhaust.

The wheelbase on my front driver side is pushed back a bit.

how much should it cost?

drove it. Today motor is frozen. and found shaft broken on synchronizer. What happened?

replaced oil sensor and did major tune up but didn't fix the problem.

Check engine diagnose found following DTC:P1285 cylinder head over temp condition (sensor). P1450 unable to bleed up fuel tank vacuum, P1299 cylinder head over temp protection active. Further test found cylinder head temp sensor reading up to 60 deg. Also found bad evaporate vent solenoid. Recommend replace cylinder head temp sensor and evaporate vent solenoid.

it from starting. when i pulled spark plug #3, gasoline pours out behind it. i have even tried holding the accelerator to the floor while cranking to blow out the raw gas and it tries to start but dies and also backfires.

It does not happen all the time the the car has bee running warm its been on for a while and when the battery lite goes off the temperature gage wild go back to normal

replaced ball joints still makes loud squeak

05 manual. Only 70k. Car dies after 20 min of driving. Rpms go wacko, so I know car will die. Wrench light comes on. Car will usually not start properly after.
Mechanic spent days, does not read code in car. Fuel lines cleaned, coincidently new clutch. Nothing. No check engine light. Just know that if I drive, to let car sit for an hour. Help!!!

Need to put a clutch kit in and curious how hard it is to put in.