Toyota Repair Problems? Ask a Mechanic for Answers ASAP
Hello. Welcome to Just Answer. Please allow me to assist you. A no start condition can be a lot of things. I will take for granted that you have the timing belt set properly, and the cams in the right position. The first thing we want to do is check compressions. Then make sure that you hooked up the crank and cam position sensors. With regard to the top end noise, look very closely where the oil fill hole is on the valve cover. See if the windage tray is bent downwards. Then check for power in the injectors with the key on, You should have power on one side of each injector wire connector., Advise of your findings and we will continue.
An unconnected crank sensor will not cause you any damage.
Do you have a "noid light"?
If not, are the plugs wet with fuel after cranking or you smell fuel when cranking at the tailpipe, or, the plugs are dry and no gasoline odor at the tailpipe?
However....if the crank sensor is faulty, or the ring that the crank sensor 'reads' is cracked, or is installed backwards, the car will not start. If you had the crank pulley off, it is easy to fit the sensor tone ring backwards.
If the plugs are not wet you probably do not have injection pulse. That is where the Noid Light is needed. It takes the place of an injector, connected to the injector wire connector. It will blink to show that the computer is applying a ground. A test light will not work as the ground signal is only 4 milliseconds. You won't see an incandescent light flash in 4 MS. We need to verify the injectors are pulsing. Did you try starting fluid? (have to ask that)
Does the check engine light come on with the key in the On position?
That is good. No check engine light usually means failed computer. We need to check compressions. its possible your new head has valve issues.
With no codes, no start with starting fluid, wet plugs, correct cam timing (I assume there is spark at the plugs, and the plugs are the correct ones), we need to check compressions and verify spark is bright blue-white whilst cranking
Yes. A bad cam sensor would cause a no start reading. This might be a bit strange to ask, but you might want to check your cams to make sure that the sensor has something to 'read'. We had a rebuilt head once supplied that had the wrong cam in it.
I would be pulling the front cover off and looking at the tone ring on the crankshaft.
Then you have one of the cams out of phase. If everything check out OK, the cams are the last thing it could be.
Ok. Pls let me know