I have a 96 Plymouth Grand Voyager SE, V6 3.3 engine. It's not getting spark from the 3rd and 6th ports from the Coil Pack. I have changed the coil pack, plugs, wires, and even tried a different PCM. I went ahead and changed the crank and cam position sensors too. It's still not getting a pulse from the same plugs. Could it be a wiring, or wire connector issue? Could a bad relay keep those specific ports not to fire? Please help, I am stumped.

Did you test power an grounds ? B+ to coil pack . Check for battery voltage at dark green with orange stripe wire at coil pack . No B+ voltage there you need a ASD relay - auto shut down relay !

On those it is most likely a bad Coil pack, very common.


How to Test the Coil Pack 1990 1998 Chrysler 3 3L 3 8L

try changing the crankshaft position sensor but first for the fuel turn the key and listen for the fuel pump to kick on if it does and it still wont start find the gas line to the fuel regulator and pull it off and have someone crank it if it has a good pump it will have good pressure and as for the spark if its not getting spark im guessing it has one coil pack together its computerized so it could of gone out but anyway check the fuel stuff first and then change the crankshaft position sensor im almost competly sure that will fix your problem

replace spark plug and wire and if it has separate coil for the cylinder, change it.

Follow the spark plug wire's from engine, where the spark plug's are at, to other end of spark plug cable, will plug to ignition coil pack, sits on top of engine.

Have you replaced the plug wires? If they have too much resistance they can cause the coil to fail.

The engine plenum will have to be removed. This is what the air goes thru to get to the engine intake. Remove ground, mark tag remove required cable, wires and hoses, take digital photos as you go. Be patient. The good news is we don't have to change them every 20K miles.

Tom

The coil pack unit's circuit #3 drives plugs #3 and #6 directly from the PCM. If the cam sensor was defective, it should not fire any plugs. Suspect bad wiring from the PCM to the coil pack, the PCM unit itself, or a segment of the camshaft position sensor surface has lost magnetism causing missing signal to the PCM. An oscilloscope is the best test instrument for chasing down a missing pulse problem. The missing timing signal also explains why the PCM would report a 'bad camshaft sensor'. Hope this helps!

It is an emissions problem. Or sensor problem. Take it for a trouble code scan at Autozone or similar store . They will do a scan for free. You may need to replace the catalytic converter. That cherry red pipe sounds serious.it should not be like that at all.

check your cap and rotor. if the they do not get a good enouph connection than it won't send a spak to the engine and or coil pack. you need to also check your spark plugs and wires.