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 Pete Your Own Question

Pete
Pete, Auto Mechanic
Category: Chevy
Satisfied Customers: 15535
Experience:  14 years GM dealer Technician.
14928985
Type Your Chevy Question Here...
Pete is online now
A new question is answered every 9 seconds

97 chevy: no spark at coil,well found new crank sesor..harness..ecm

Resolved Question:

talked to before on that 97 chevy 5.7 getting no spark at coil,well found new crank sesor was sending back 8 volts for signal put in old one and got 5 volts back,tried a conntinuity test on harness between c3 pin9 and c4 pin 18 and wasfine at all connections now getting a code p1395 after crancking over a couple different times and still getting 6-7 volts from signal at icm, is there a way to test ecm and what do tou know about preproggrammed ecm
Submitted: 2 years ago.
Category: Chevy
Expert:  Pete replied 2 years ago.
Hello,I will be glad to try and assist you with this,Welcome to Just Answer.

Hello again.

Can you verify the code number you are getting now as this code P1395 doesn't come up for this vehicle?

Let me know,Thanks Pete!
Customer: replied 2 years ago.
im sorry itsp1351 code
Expert:  Pete replied 2 years ago.
O.k.

I can walk you through the test steps here to locate what is at fault.

The first step is to clear the code,then disconnect the fuel injector large electrical connector from the top of the engine behind the throttle body.

Then crank the engine over for 30 seconds.Then recheck to see if this fault code reset.

Let me know what you come up with here.

Thanks Pete!
Customer: replied 2 years ago.
i still come up with p1351
Expert:  Pete replied 2 years ago.
Next step reconnect the injector connector then disconnect the ignition module connector and probe terminal B at the module connector with a multi meter and the negative lad on the multi meter connected to ground.Set the multi meter to AC volts and crank over the engine.Let me know what you get for voltage,it should be between 1 and 4 volts.
Customer: replied 2 years ago.
i getting 7.2 volts on ac with it unhooked
Expert:  Pete replied 2 years ago.
When you tested resistance between C3 terminal 9 was this tested for resistance on this wire from the end of the computer connector to the ignition module terminal B wire?Was it less then 10 ohms?
Customer: replied 2 years ago.
yes it was .3
Expert:  Pete replied 2 years ago.
O.k.

With this code and these test steps we have taken here the next step is to check for a bad connection at the computer and if the connection and wiring are o.k. from the computer to the ICM then the fault is in the computer itself and it needs replaced.Was this computer replaced and programmed by a dealer?

Let me know if you need anything else,click accept if you feel satisfied with your answer as this is how I get credited for my time,Thanks Pete!
Customer: replied 2 years ago.
no it has not been replaced and what do you think of preprogrammed computers
Expert:  Pete replied 2 years ago.
A pre programmed computer is o.k. as long as it has been programmed and ready to go for your vehicle from your vehicles Vin number or options.

I know these can be purchased from local parts stores as well as other places possibly and they operate like they should so this is a good option to avoid going to the dealer.

Let me know if you need anything else,click accept if you feel satisfied with your answer as this is how I get credited for my time,Thanks Pete!
Pete, Auto Mechanic
Category: Chevy
Satisfied Customers: 15535
Experience: 14 years GM dealer Technician.
Pete and other Chevy 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 having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
< Last | Next >
  • I was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money. Todd L Rochester NY
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
  • Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know. Robin Elkton, Maryland
 
 
 

Meet The Experts:

 
 
 
  • Tim's Auto Repair

    mechanic

    Satisfied Customers:

    7641
    Have owned a repair shop for 25 yrs.
< Last | Next >
  • http://ww2.justanswer.com/uploads/TI/tim37857/2011-10-28_23053_S6301814.64x64.JPG Tim's Auto Repair's Avatar

    Tim's Auto Repair

    mechanic

    Satisfied Customers:

    7641
    Have owned a repair shop for 25 yrs.
  • http://ww2.justanswer.com/uploads/DT/dt69nova/2012-6-15_234154_pic1.64x64.jpg Dave Nova's Avatar

    Dave Nova

    Chevrolet Technician

    Satisfied Customers:

    6870
    ASE Master Certification. GM World Class Certification
  • http://ww2.justanswer.com/uploads/ggrote1/2009-06-27_031011_me.jpg Gary's Avatar

    Gary

    Chevy Technician

    Satisfied Customers:

    5404
    15 years GM master tech
  • http://ww2.justanswer.com/uploads/testedtuff/2009-09-26_170108_pictures.jpg John's Avatar

    John

    Master A.S.E Automotive technician

    Satisfied Customers:

    4071
    A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician
  • http://ww2.justanswer.com/uploads/RO/rodcuda/2011-7-25_224114_Donhoff1.64x64.JPG Neal's Avatar

    Neal

    Chevy Mechanic

    Satisfied Customers:

    2306
    Shop Owner and Mechanic on multiple makes.
  • http://ww2.justanswer.com/uploads/goodwrench9124/2008-11-09_220838_dscf0007.jpg goodwrench9124's Avatar

    goodwrench9124

    ASE Certified Technician

    Satisfied Customers:

    2041
    Ase Master Certified, GM Master Certified Tech. Awarded GM Top performer, Hybrid certified
  • http://ww2.justanswer.com/uploads/DR/drivefast1971/2012-1-12_172422_0009051tQKh.64x64.jpg Ron Z.'s Avatar

    Ron Z.

    - Chevy Tech -

    Satisfied Customers:

    1912
    18+yrs experience. State Inspector and Chevy Diagnostics