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98 3.0 injector pulse width way too large. Possible causes?

Old Jul 17, 2008 | 06:30 PM
  #1  
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Default 98 3.0 injector pulse width way too large. Possible causes?

What would cause the fuel injector pulse width to be too large to start the car? The plugs get fouled before it can even start. The only DTC is p1410. Thanks
-Rob
 
Old Jul 17, 2008 | 08:14 PM
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Default RE: 98 3.0 injector pulse width way too large. Possible causes?

Sorry can't post due to ongoing website issues.
 
Old Jul 17, 2008 | 08:14 PM
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Default RE: 98 3.0 injector pulse width way too large. Possible causes?

All plugs are fouled?
 
Old Jul 17, 2008 | 08:16 PM
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Default RE: 98 3.0 injector pulse width way too large. Possible causes?

The engine may have a mode that increases fuel flow at cold coolant temps.
 
Old Jul 17, 2008 | 08:16 PM
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Default RE: 98 3.0 injector pulse width way too large. Possible causes?

Might make sure the coolant sensor is OK.
 
Old Jul 17, 2008 | 08:17 PM
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Default RE: 98 3.0 injector pulse width way too large. Possible causes?

Check that the fuel pressure regulator is not stuck closed. End of fuel rail.
 
Old Jul 17, 2008 | 08:18 PM
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Default RE: 98 3.0 injector pulse width way too large. Possible causes?

Throttle position sensor bad causing computer to think the throttle is open.
 
Old Jul 17, 2008 | 08:19 PM
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Default RE: 98 3.0 injector pulse width way too large. Possible causes?

Make sure the fuel pump is NOT running when ign key on but engine NOT cranking.
 
Old Jul 17, 2008 | 08:19 PM
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Default RE: 98 3.0 injector pulse width way too large. Possible causes?

Fuel pump should only run when the engine is cranking (or engine running of course).
 
Old Jul 17, 2008 | 08:20 PM
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Default RE: 98 3.0 injector pulse width way too large. Possible causes?

Code may not have been tripped because of engine never running through a test cycle yet.
 

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