My engine will not start up why?

Hi, its sounds like you lost spark, go to this page for more info.

https://www.2carpros.com/how_to/how_to_test_an_ignition_system.htm

let me know if you do or dont have spark.

Lets check for system fuel pressure, watch this video

https://www.2carpros.com/how_to/how_to_check_fuel_pressure.htm

let me know :-)

Good afternoon.

It may not be the module at all. There is a sensor on the rear of the transmission at the driveshaft that sends a signal to the module for spark. If the is bad, it will cause this.

It may be that if you disconnect the wires at the module and re attach them, it may start.

Roy

PURPOSE
The Electronic Distributorless Ignition System (EDIS) module's primary function is to deliver full energy spark at a crank angle targeted by the Electronic Control Assembly (ECA) module and to provide the ECA with crankshaft position information.

CONSTRUCTION
The EDIS ignition module is a twelve pin custom microprocessor-based thick film module. Even though each engine is very different in size and structure, EDIS modules for each engine are very similar. With the exception of some pin assignments, basic operation of the EDIS systems for the different engines is identical.

OPERATION
The EDIS module receives input from the Variable Reluctance Sensor (VRS) style Crankshaft Position Sensor (CKP) in order to identify the passing of the missing tooth on the VRS trigger wheel. The module is said to be "synchronized" when the missing tooth is found. Synchronization is essential to the EDIS module in order to track the angular position of the crankshaft relative to a fixed reference and when it should fire the proper coil.

Profile Ignition Pickup (PIP) output is synthesized by the EDIS module using input from the VRS signal. The PIP signal generated by the EDIS module indicates engine speed and crankshaft position to the ECA. The PIP signal is used by the ECA so that it can enable fuel and spark functions and generate a Spark Angle Word (SAW) signal.

I would suspect the connector may be dirty or have loose or damaged pins.

Have him check the connector closely. You can get a pigtail to replace the connector.

Roy

Hi Perez,

Have you replaced any components? This is a bit of an odd issue if I am understanding it correctly.

When you say it cranks but does not make a complete revolution what happens when it stops? Does it make a noise? Grinding? Clunk?

I think the best course of action is to see if you can get a recording of the issue so we can be on the same page.

Reason is, I suspect you have a weak starter or possibly it is hydro locked. It sounds like when you say it can't make a complete revolution that it is meeting some sort of resistance like moisture in the cylinder that it can't compress. Or it just simply has a weak starter that can't turn the engine over.

Let me know if you can get a recording and we can go from there.

When you turn the key to the on position without cranking the engine over can you hear the fuel pump run in the tank for 5 seconds?

This guide will help us fix it

https://www.2carpros.com/articles/car-cranks-but-wont-start