View Single Post
  #4  
Old 08-28-2009, 01:51 PM
shorod's Avatar
shorod shorod is offline
SHO No Mo
 
Join Date: Jun 2004
Posts: 10,998
Thanks: 105
Thanked 359 Times in 350 Posts
Re: 90 taurus 3.0 won't start

Many of the chain auto parts stores used to have ignition module testers. I'm not sure how reliable they are, or how many of the parts stores still have them with a staff that knows how to use them, but it might be worth a shot. Or, if you have an oscilloscope and are good at safely backprobing connectors, you could verify if the ICM is getting and sending good data. With a multimeter you could do a quick check to make sure the fuel injectors are getting power. I think they use a common positive and the PCM switches ground to open the injectors. If there is an open in the supply side, or a blown fuse, that could explain no pulse. I'm not sure that would result in a reading of 0.0 on the scan tool though since they PCM would still be trying to provide some pulse width. Are there any stored codes for the PCM?

-Rod
Reply With Quote