Plugs Still Not Firing
Plugs Still Not Firing
Okay, all the fuses are good and I have 12 volts at the leading coil pack check connection but I don't have spark at the plugs. Any suggestions?
Originally Posted by walterwible
Okay, all the fuses are good and I have 12 volts at the leading coil pack check connection but I don't have spark at the plugs. Any suggestions? 

Did you pull the plugs and look at them or are you using a timming light?
If your light isn't going off then your plugs could be WAY fouled.
Brand New Plugs
The plugs are brand new. I pulled the front, trailing plug and there is no spark to be found.
None of the other plugs are firing either from the sound of things. They all 4 seem to be stone dead.
None of the other plugs are firing either from the sound of things. They all 4 seem to be stone dead.
If you jumper the fuel pump check connector, with the key ON, can you hear the fuel pump run.
I'm not asking you if you have fuel. I'm asking a straight forward question. Can you hear it run when you do the jumper on the fuel pump check connector?
Did you use a meter to check for voltage at the lead coil or use a ????????? device?
I'm not asking you if you have fuel. I'm asking a straight forward question. Can you hear it run when you do the jumper on the fuel pump check connector?
Did you use a meter to check for voltage at the lead coil or use a ????????? device?
The Fuel Pump Is Running
When I first tried to start the car after having put everything back together, fuel squirted from one of the fuel line connections.
I checked the voltage output with an ohm/volt meter and, like I explained before, got 12 volts at the leading coil pack check point.
I truly appreaciate everyone's comments.
I checked the voltage output with an ohm/volt meter and, like I explained before, got 12 volts at the leading coil pack check point.
I truly appreaciate everyone's comments.
LIke the above post suggests, if the tach needle bumps a touch when you crank the engine over, then there IS spark, at least at the trail coils.
On the LEAD coil assy there is a small, white, two socket connector. It should have 12vdc on the black/yellow wire. The other wire is the signal from the ECU to trigger the spark at the coil.
If the ECU is not putting out a Ref Voltage signal you won't get spark. The easiest place to check for the 5vdc ref v signal is the Brown/White wire in the boost/pressure sensor plug. If it's there then the ECU is probably ok.
On the LEAD coil assy there is a small, white, two socket connector. It should have 12vdc on the black/yellow wire. The other wire is the signal from the ECU to trigger the spark at the coil.
If the ECU is not putting out a Ref Voltage signal you won't get spark. The easiest place to check for the 5vdc ref v signal is the Brown/White wire in the boost/pressure sensor plug. If it's there then the ECU is probably ok.
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