Where should I go next? I've replaced the Cam Sensor and nothing changed. I was doing 65 mph of the HWY and the engine just died! My wires, distributor, and rotor look fine. I have voltage running to my coil and from the coil to the distributor but still no spark. Could it be the ecm? Relay? I have pressure in the fuel rail and I hear the pump priming......HELP! I pull a couple of codes from the A2 socket but nothing from the A6 one. A2 speaks of boost pressure and, I think, faulty egr sensor.

 

>My wires, distributor, and rotor look fine.

Look fine doesn't mean they are good. They are routine service items yet most people neglect them until the engine fails. However, in this case they may or may not be causing the trouble. How is the condition of the spark plugs? Are you sure you're getting voltage from the coil to distributor? I would visually verify that you get spark from the wire that runs between the coil and the distributor. If you see spark, the problem is downstream, but if you don't, the coil, the power stage on the coil assembly or electronic control may be faulty.

>Where should I go next?
If the car can still be driven, the next place I would go is a local AutoZone and have them run OBD-II diagnosis just to make sure no codeis stored in the ECU. Note, that this applies to certain models between '94 & '95. Check to see if you have OBD-II port in front of the shifter, right under the coin holder.

If you can give us a bit more description on the problem, we can narrow down the possibilities.


JPN

[IMG]local://upfiles/6892/7939C4AE57B74594B5499BDCE707BD05.jpg[/IMG]

 

I'm thinking the problem sounds a lot like a bad coil or ecm.As JPN said, please verify that you are truly getting spark from the coil to the distributor. If so, then look between the distributor and the spark plugs for the trouble. If no spark, then the problem is either the coil, the voltage to the coil, or the ECM (pretty much waht JPN said just in different words) I'm still thinking a bad coil or the ECM

 

What kind of voltage should be coming across the coil/distributor line while cranking?

 

The voltage to create a spark is at about 60,000V or higher (some cars seem to produce as much as 100,000V). You cannot measure this much voltage directly; it would fry up a generic multimeter including my entry-level Fluke. You would need an induction-pickup type tester to measure voltage, but I would rather check for resistance in the coil; 0.5-1.5Ω for the primary and 8k-9kΩ for the secondary. And use a spark-tester tool (Snap-on sells them for a few dollars).


JPN

 

+1

 

It was the cam sensor! thanks guys!

 

Excellent, well done!


JPN