My 1997 chevy venture won't start crank only but won't start change the crank sensor and the cam sensor but don't get power to my fuel pump and the fuel injector (so what could be wrong)

Why did you replace the cam sensor? Blazers have this problem with cams...It's not the cams. but the cam slack adjuster/ or guides. Major job.

you need 3 things, air, fuel, and spark. if u have spark coming from all plugs, then ur good there, if you have fuel, and it still wont start, it may be the maf sensor or one of the other airflow sensors such as the map sensor.

Did the fuel pump come on?

Did you check fuel pressure at the motor?


Try jumping the relay to get pump on?

Read a wiring diagram-- so you know what your doing?

Check Power & Grounds to pump when the tank was down?

What you are telling me is the engine is firing the plugs but not getting fuel.
When you changed the fuel pump and filter, did you check the fuel pressure at the rail ?
Are the injectors getting power and ground pulse ??

Check the spark is firing or distributor.

possible

Now you have a good battery & a starter that turns over the motor

Have you cycled the key on & off with a fuel pressure gauge on the
fuel rail?

Do you have a fuel filter that isn't over 3 or 4 years old?

Have you checked for spark while cranking ? Use an old plug on the wires,
if you have ignition wires,don't ground the wire without resistance

If you removed the ducting & MAF Sensor it won't start

Tell us what you checked & exactly how that was done.

First check any ignition/fuel related fuses. Check to make sure you have 12 volts coming into the pump and coil. If nothing to the fuel pump replace the fuel pump relay - if you do have power to the fuel pump then replace the pump. If nothing is coming to the coil it is either an ignition relay or a wiring issue. If you have 12 volts to the coil but no spark then replace the coil.
Also the fuel pump/relay would not kill the coil.

check to make sure the security light is not on if it is the van will have spark but no injecter pulse the best way to solve this issue is to have the original igniton key and put it in the igniton in the run position and leave it on for 10 minutes then the light will flash then try to start the van

check the asd relay swap it with another like it. also check fuses and old car alarm if it had one.the cam and crank sensor will not affect fuel pressure. the cam sensor should not stop this car from starting. but the crank sensor will. good luck.