Quote:
Originally Posted by Roger Dale
Hi there MT.I didn't want to bore you with the entire series of events so I left out what I felt wasn't needed to say.Yes I used a noid light first and there is NO PULSE.I have 12 volts to both injectors.I have good spark from the coil wire and the #1 plug.I read a post on Just Answers from a technician named Frank back on August 6 2006 and he spelled it out this way. "take a test light connected to battery positive and touch the purple/white wire at the harness connector side of the ignition module.If the injectors pulse with a SPRAY OF FUEL each time you touch the terminal,then the problem is in the distributor".Well I have a spray with a test light but nothing while cranking.That to me would indicate 12 volts to the injectors,fuel pressure and grounding to the injectors from the ECM. Now I've looked the distributor over and have put in a pickup coil and module.I've bypassed the oil pressure switch and the fuel pump relay and I have 12 volts to the gray wires in the red and blue plug of the ECM.Many time folks make things a lot more complicated than they really are.That's why I tell them to do the basic things first.I checked the fuses.Checked for voltage to the injectors.It will run if you nurse gas down its throat.I know there's a simple answer to why I have NO PULSE CRANKING. I'm just trying to think through this problem and need a little help.
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What engine code?
Pcm inside cab or VCM on fender?
Flat top dist or old style?
Old school if computer is getting all powerr and ground and signals and no injector pulse = bad computer.
Is the coimputer getting crank RPM signal?
If the computer is getting rpm signal and you have good spark the computer should be puting out injector pulse.
Check all wiring and power and ground and plugin to computer.
Run a pin out test on it.