03 ALTIMA 3.5 NO START NEW CAM AND CRANK SENSORS GOOD FUEL PUMP JUST SPINS OVER NO SPARK POWER TO COILS PUT KEY IN AND ANTITHEFT LIGHT GOES OUT...

Hello and welcome to ExpertHelp.com! My name is Relly De Jesus and I'm going to do everything in my power to answer your question to your full satisfaction!

Before we get started, I want to remind you ExpertHelp.com is an independent professional support company. We do not have any affiliation with NISSAN nor are we paid to provide support on their behalf. However, we have helped hundreds of customers with similar questions and believe we can help you too. OK, let’s get started! :)

I’m available to chat now. Please let me know that you are ready by posting a response. I’ll leave my chat session open for the next 15 minutes or so and wait for your reply. If I don’t catch you this time, please respond with a few times (including your timezone) that work best for you and we can connect then.

Hello Jeffrey

How are you doing? Is the check engine light flashing? Do you happen to have any error codes during the scan? I'll be standing by for your response.

Thank you

Relly

Have you checked the ignition relay Jeffrey?

Below is the location of the ignition relay. I'll replace it if I were you as a first course of action. 

I'll be standing by for your response. 

Ok Jeff.. I'll be standing by. Goodluck!

It's under the hood on the driver's side Jeffrey. Did you see the diagram? I can send you the pic via email if you have not seen it yet

ok, may you please give me your email ad so I can send you the pic

Please check your email Jeffrey for the diagram. I'll be standing by

Great... I'll be standing by and hope that the relay replacement does the job. Goodluck!

Ok Jeffrey... do you happen to have a spare ECM in your garage? This could be a computer related issue. This issue is happening before they took it in your garage right? The ECM may not be communicating to the coil packs that's why there's no spark. Crank and cam sensors are new and I see no reason for a no spark. Is there any yard in your place where you can pull out an ECM so you can check and confirm the issue.

Please do inspect the wiring harness as well if there's any obvious damage. If the wirings / harness are all good, I'll go for an ECM replacement. It's an 03 and the ECM may have reached it's end of service. I'll be standing by for your response.

Is there anything else I can add or help you with Jeffrey?

Hello Jeff

How are you doing? You must have a pretty good reputation Jeff that's why they want you to take care of their vehicles. You may retire but there's something bout cars that will get you moving. You may send me an email if there's anything else I can add. I may give you a call as well every now and then if my schedule is not that busy. Goodluck Jeff and have a great day ahead!

Thanks

Relly

Dear Jeff, It was a pleasure helping you with your Nissan issue today. Here is a summary of the resolution.

Issue identified : No spark to the coils
Solution Implemented : Replaced cam and crankshaft sensor but to no avail. Possible ECM failure for this issue happened before. Solution Accepted
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