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 Chad Farhat Your Own Question
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Mazda
Satisfied Customers: 1538
Experience:  Owner at Carolina Auto Service & Sales , 20 years Experience in Foreign & Domestic vehicles
45790705
Type Your Mazda Question Here...
Chad Farhat is online now
A new question is answered every 9 seconds

1990 Mazda b2600 it wont start after a run, I did. Sometimes

Customer Question

1990 Mazda b2600 it wont start after a run
JA: Have you checked the battery, particularly the terminal connections? Are they corroded?
Customer: I did. Sometimes it loose the spark sometimes loose fuel pressure but sometimes it has both and don't start either
JA: Are you fixing your B2600 yourself? What have you tried so far?
Customer: I replace the ignition distributor complete, ignition coil, ignition module,engine computer and ignition switch.Still have the same problem
JA: Anything else you want the mechanic to know before I connect you?
Customer: It start fine if I let it cool down for an hour or two
Submitted: 3 months ago.
Category: Mazda
Expert:  Chad Farhat replied 3 months ago.

Hi, I'm Chad ,Welcome To JustAnswer, I'm reviewing your question and I will be posting a reply ASAP

Customer: replied 3 months ago.
Ok.Thank you.
Expert:  Chad Farhat replied 3 months ago.

have you checked fuel pressure ?

mass air flow sensor ?

what is the mileage ?

this having both and dont start neither will be an issu , if the computer is replaced also ?

when you unplug mass airflow , while running does the engine idle changes ?

Please let me know

Thank You

Chad Farhat

ASE Certified Technician

Customer: replied 3 months ago.
It has a lot of fuel pressure all tough I never used a gage to check it. It has 172,000,00. I replaced the computer already
Customer: replied 3 months ago.
Just going to do the airflow test now. Tomorrow I can call you
Customer: replied 3 months ago.
After disconnecting the mass air flow the engine just shut down
Expert:  Chad Farhat replied 3 months ago.

sure man just reply back here,

tomorrow I will be online from 10 am till 12 pm tomorrow.

Please let me know

Thank You

Chad Farhat

ASE Certified Technician

Customer: replied 3 months ago.
What you think about what I said about the mass air flow?
Expert:  Chad Farhat replied 3 months ago.

well if it shuts down, means it is working giving input to ecm

but i dont know how good the signal is and is it droping intermittently , do you have a lab scope to test the signal on mass air sensor

Customer: replied 3 months ago.
No I don't have a lab scope. Good night men. Talk to you tomorrow
Expert:  Chad Farhat replied 3 months ago.

ok you too

Chad

Expert:  Chad Farhat replied 3 months ago.

hey how are you

what happened with it ,did you get it fixed ? do you still need some help with it

Chad

Related Mazda Questions