Plugs Still Not Firing
08-20-05, 02:22 PM
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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? 
08-20-05, 02:27 PM
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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.
08-20-05, 03:07 PM
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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.
08-20-05, 03:16 PM
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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?
08-20-05, 04:29 PM
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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.
08-21-05, 10:31 AM
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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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