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 Matt Your Own Question
Matt, Engineer
Category: Car
Satisfied Customers: 21854
Experience:  Honors degree in Mechanical Engineering, worked 8 years as a Formula 1 engine engineer.
Type Your Car Question Here...
Matt is online now
A new question is answered every 9 seconds

97 cougar want crank re place crank sensor no fire going to

Customer Question

97 cougar want crank re place crank sensor no fire going to injector fire going to coil packused noid light did not flash try use ding starter fluid did not crank don't replace fuel reset
Submitted: 2 years ago.
Category: Car
Expert:  Matt replied 2 years ago.
Hello OK if the noid light isn't flicking then the ECU isn't sending the firing pulse to the injector, this is either down to a faulty crank signal or lack of power to the ECU or a faulty ECU as you've already replaced the crank trigger then next check you have power to the ECU, using a meter on the fuse with the ignition on, if there is power then check that the small earth connections to the enginethese will run out of the wiring loom and end in small ring terminals that are secured to the engine if this is OK then the ECU may need to go off for repair try these firms