WOULD LIKE TO KNOW WHERE THE CRANKSHAFT SENSOR IS LOCATED

Please key check the crankshaft position sensor and the ignition coil, when the crankshaft position sensor failure will lead to the engine ignition time too early or too late, when the high voltage ignition coil fault is that the ignition is too weak, these two problems can lead to the lack of engine power and adverse symptoms such as waste oil, and in the two components without completely damaged, computer fault, it will be very hard to check especially the crankshaft position sensor.auto diagnostic tool.

Here's a link to your crankshaft position sensor,Here's the part.

It's the CPS (crankshaft position sensor) beginning to fail. The sensor is located behind the harmonic balancer on the lower RH side of the engine. If you look down the accessory belt from the alternator you"ll see a wiring harness leading behind the crankshaft pulley. An easy way to diagnose a faulty sensor is to warm up the engine and carefully tap on the sensor bracket while the engine is idling. A bad sensor will cut out and the engine will stall.

The crankshaft position sensor identifies position of the crankshaft to the ignition control module (ICM), engine control module (ECM) or powertrain control module (PCM)

When not replaced, vehicle could experience no- or hard start, long crank time, misfire, lack of power, excessive hydrocarbons in oil, spark plug fouling, catalytic converter failure, poor fuel economy, CEL/MIL illumination or intermittent shutdown.

The camshaft position sensor identifies position of the camshaft to the ignition control module (ICM), engine control module (ECM) or powertrain control module (PCM)

When not replaced, vehicle could experience no- or hard start, long crank time, misfire, lack of power, excessive hydrocarbons in oil, spark plug fouling, catalytic converter failure, poor fuel economy, CEL/MIL illumination or intermittent shutdown

Really sounds like a vacuum leak. Lean code could still be accurate. Screaming idle usually means air is getting into engine. Ruptured EGR diaphragm would vent air. Brake booster could vent air. A lot of air will show lean mix.

You may have to use different methods to test vacuum. Some use vacuum gauge to test egr and lines which dead end into solenoids. Other tests use water spray or propane gas to draw in and change rpm. You are at a disadvantage if engine does not run.

Crankshaft sensor helps set fuel volume for given rpm. Might not be counting all the rpm's, but would not account for fast idle.

Hi! This most likely the problem when you try to crank and no start.
missfire- low power sparkplug
selonoid- not enough power going to the starter or Starter it self.
Bad Sensor- Into Intake Manifold, Oil Pressure, EGR, Carburator. Exshaust.
Belt- on to Camshaft, Cam gear, or Gear chain.
Fuel- gas line, fuel filter, fuel pump, low flow into fuel line or No fuel,
Bad Timing Belt on to camshaft or crankshaft.
My best bet is your AC Compressor Camshaft pully and your Crankshaft pully. Try this if I was right. Try to move the tension on the main motor belt, if it's tight, try moving the pully by hand, and if the compressor and crankshaft pully move or wable just a little. This means the berring of the pully are worn out and this cause the lost timing starter. but lets make sure, let someone look at the cam pully or the crankshaft pully while trying to start, if the pully moves, This mean that your pully need to be replace. this will cause to lack the Ignition,.To my last bet also check your Catalitic Converter mostt likely they get burned out when you keep trying to crank the car with no start, also check your ignition switch, hope this will solve the problem
P.S. some cars have a Intel switch also know the Fuel switch is located on the pasenger or driver seat. this will cause the fuel flowing into the gas intel line. press it in to reset.

Glad to help.
Ginskie,

Change the fuel filter first! It is located on most models passenger side center to rear center of van & tucked up near frame rail. Good luck!

the crank sensor will cause intermitent dieing while driving and a no start,,,common gm issue,a p0355 is for the crsankshaft position sensor performance,,or lack there of performance really,lol replace the crank sensor,,it will not cause a rough running though it will either run or not with a bad sensor, you might have 2 issues but i know the p0355 is a bad crank sensor

Are you sure its the transmission ecu that is the problem ?
Are you getting any engine ecu error codes ?
Sounds to me like its going into limp home mode.....
Crankshaft sensor ?
Camshaft sensor ?
Engine ecu ?
Thats where I would be looking ........
Looking forward to your reply.

Fuel pump is in tank, but ck the crankshaft sensor front of engine near pully for proper connection