How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask Mike V. Your Own Question

Mike V.
Mike V., Nissan Technician
Category: Nissan
Satisfied Customers: 20626
Experience:  Nissan factory trained and Certified Subaru Technician.
2921078
Type Your Nissan Question Here...
Mike V. is online now
A new question is answered every 9 seconds

Nissan/Datsun Sentra GXE: 03 NISSAN SENTRA WONT START NO SPARK

Resolved Question:

03 NISSAN SENTRA WON'T START NO SPARK AT COILS , REPLACE BOTH CRANK,CAM SENSORS STILL N0 SPARKS I WAS LOOKING AT YOUR NOTES WITH SAMES TYPE OF PROBLEMS BUT MY NISSAN DOSN'T HAVE SPARKS AT COIL IT GOT POWER AND GROUND AT COIL BUT SINGAL WIRE AT COIL STAY ON STEADING ALL TIME
Submitted: 3 years ago.
Category: Nissan
Expert:  Mike V. replied 3 years ago.
Greetings Sir or Madam and welcome to JA! I will do my very best to assist you with your problem.
Hi there!
Do you know if you have injector pulse?
Customer: replied 3 years ago.
No pulse Got 12.4 volt No trigger
Customer: replied 3 years ago.
Relist: Other.
I still have not got an answer
Customer: replied 3 years ago.
How Long Dose It Take between Questions / answers
Expert:  Mike V. replied 3 years ago.
hmm, ok
Was the engine changed, head gasket? Timing chain? anything like that?
Sorry for the delay, this will go quicker now.(computer issue)
Customer: replied 3 years ago.
No was just driving started loosing power I turn car off now it dosn't start
Expert:  Mike V. replied 3 years ago.
Ok, no pulse or fire, has to be the ecm.
I say this because the cam and crank sensors are what drives the spark and injector pulse. If you lose both and the sensors are good, there really isn't much left.
Unless for some strange reason the car jumped time. If you can do a compression test, you might find this to be the case. Odd as it seems, way out of time will cause this.
Also,just as a side note, make sure the cam and crank sensors are plugged in tight.
If you have a code reader, check for codes.
Customer: replied 3 years ago.
I will try an ECM and let you know it got good compression
Expert:  Mike V. replied 3 years ago.
Also, is the signal wire for the coil grounded all the time even with just the key on?
Customer: replied 3 years ago.
Yes all my signal wires are grounded all the time
Expert:  Mike V. replied 3 years ago.
Yeah, they should be open. I think the ecm has gone bad. It is what grounds the signal wires.
You will probably have to have the new ecm programmed by the dealer for the immobilizer to work. However, security only shuts down the injectors, so if you install another ecm and have spark, you will know it was no good.
Mike V., Nissan Technician
Category: Nissan
Satisfied Customers: 20626
Experience: Nissan factory trained and Certified Subaru Technician.
Mike V. and 6 other Nissan Specialists are ready to help you

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I was in trouble with an electrical issue with my brand new Nissan. I frantically went online trying to find help and luckily I found your site. I reached a NISSAN tech named RIP. He was absolutely tremendous and helped me work through the issue. What a pro! cjaz Lexington, KY
< Last | Next >
  • I was in trouble with an electrical issue with my brand new Nissan. I frantically went online trying to find help and luckily I found your site. I reached a NISSAN tech named RIP. He was absolutely tremendous and helped me work through the issue. What a pro! cjaz Lexington, KY
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles Walnut Creek, CA
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
    Sue Charleston, WV
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff. Jim Castleberry, FL
 
 
 

Meet The Experts:

 
 
 
  • Tim Mohr

    ASE MASTER TECH

    Satisfied Customers:

    446
    30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
< Last | Next >
  • http://ww2.justanswer.com/uploads/tsmodie/2009-6-10_144056_tim.jpg Tim Mohr's Avatar

    Tim Mohr

    ASE MASTER TECH

    Satisfied Customers:

    446
    30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
  • http://ww2.justanswer.com/uploads/CA/caprio23/2011-12-13_155550_20111213105344.64x64.jpg Anthony's Avatar

    Anthony

    ASE Certified Technician

    Satisfied Customers:

    306
    ASE Master Automobile Technician with over 18 years exp. in this field.
  • http://ww2.justanswer.com/uploads/FO/fordguy4u/2011-12-17_222940_HPIM1257.64x64.JPG Ron's Avatar

    Ron

    ASE Certified Technician

    Satisfied Customers:

    171
    34 years of automotive Repair
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris(aka-Moose)'s Avatar

    Chris(aka-Moose)

    Nissan Technician

    Satisfied Customers:

    165
    16 years of experience
  • http://ww2.justanswer.com/uploads/EU/eurotec/2012-6-11_13153_mpjaphoto.64x64.JPG Marty's Avatar

    Marty

    ASE Certified Technician

    Satisfied Customers:

    127
    ASE & Bosch master tech. 30 years experience.
  • http://ww2.justanswer.com/uploads/BA/baddad1/2013-8-30_131413_11848761610058140852271553042976n.64x64.jpg Mike V.'s Avatar

    Mike V.

    Nissan Technician

    Satisfied Customers:

    7443
    Nissan factory trained and Certified Subaru Technician.
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    92
    Nissan Tech ASE certified technician
 
 
 
Chat Now With A Nissan Mechanic
Mike V.
Mike V.
Nissan Mechanic
20626 Satisfied Customers
Nissan factory trained and Certified Subaru Technician.