My engine does not start up and run?

Good morning,

The guide is a good start but if the check engine light does not come on, it could either be the ECM or a blown fuse.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

I attached the diagram of the powers to the ECM. I also attached the fuse box diagram and the fuses to test for power.

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Roy

Okay, first, never remove the positive cable. The negative cable is always the first one off and the last one on. The arc from the positive can damage modules from a voltage surge.

In your case, you may have an ECM issue and this could have contributed to that failure.

I need the code when the light comes on. That will give me a direction of the area of failure.

I would also check for fuel pressure and spark when it does not start.

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Can you hear the fuel pump run when it does not start?

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Roy

Hi Wizzard,

Engine operation requires, fuel, electrical control and mechanical components functioning. You need to find out which is the cause and proceed to rectification. Below is a link explaining how to go about with initial checks if you are a DIY person.

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

Before you start, ensure that the gas in tank has not run dry.

Hello,

This could be a problem with your vehicle's Crankshaft Position sensor (CKP). Your vehicle's CKP is responsible for keeping track of the number one cylinder. More specifically when the number one piston is at Top Dead Center (TDC) of the compression stroke. It does this by reading a toothed wheel that is attached to the crankshaft. It has a missing tooth that passes by the sensor when number one piston is at TDC. By keeping track of number one piston it can also keep track of where the rest of the engine is at in it's four stroke cycle. The Power-train Control Module (PCM) a.k.a."computer" uses this information to send sparks to the spark plugs and when to open fuel injectors. If there is no signal from the CKP the engine will have no spark or fuel injector duty cycle and it will not start. I have included a few links down below for you to go to:

https://www.2carpros.com/articles/how-a-crank-shaft-angle-sensor-works
https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor
https://www.2carpros.com/articles/crankshaft-angle-sensor-replacement

I have also included a CKP location picture in the diagrams down below. Please go through these guides and get back to us with what you find out.

Thanks,
Alex
2CarPros

Hello again,

When was the CKP sensor replaced?

Thanks,
Alex
2CarPros

Hello again,

Okay, lets make sure that the signal is getting to the PCM. This is going to require you to use a multi-meter. If you are not familiar with how to use one I have included a link below.

https://www.2carpros.com/articles/how-to-use-a-voltmeter

Okay, can you please double check the connector for the CKP sensor. Make sure that it not damaged, clean, and making good connections to the pins when connected. Next we are going to have check to make sure that the signal is getting to the PCM. A couple of things that will make this a lot easier to do is a couple of safety pins, and a couple of long jumper wires with alligator clips attached to both ends.
Pierce both the wires coming from the CKP connector a couple of inches from the connector with a safety pin. I pin, one wire. Clip a jumper wire to each of the safety pins securely. Attach the other ends of the jumper wires to a lead from the multi-meter. red test lead should hook up to brown wire, black to white wire. Turn your multi-meter to AC Voltage. Have an assistant crank the vehicle. Watch the multi-meter. You should get a reading from 7 volts - 14 volts.
I have included some information for you in the diagrams below as well. Please get back to us with what you find out please.

Hello,

This could be a problem with your ignition system. I have included a few links below for you to go through. I have also included vehicle specific troubleshooting for the starting system as well in the diagrams below. Let us know what you find out.

https://www.2carpros.com/articles/car-cranks-but-wont-start
https://www.2carpros.com/articles/engine-cranks-excessively-before-starting

Thanks ,
Alex
2CarPros

Start by checking the fuel pressure to rule out the fuel filter and fuel pump

You need to use a fuel pressure tester and hook it up to the fuel test port and turn the key On and read off and start it up and then read off again-refer to fuel pressure specs in repair manual.