Subject	Start troubleshooting. Connect a hose to the fuel
Posted by	kkrofft (OH) on July 29, 2008 at 6:36 AM
	This message has been viewed 105 times.
In Reply To	90 300zx n/a won't start posted by kenn371 on July 29, 2008 at 06:08 AM
Message	tube at the pump. Point the hose into a bucket and turn the key. If you get fuel, the line is blocked after the pump so check the filter. If no fuel at the pump, recheck the wiring. Pull the pump and verify it runs outside the tank for just a second (don't run it dry). If it doesn't you will need to trace down the circuit. Look in the service manual online and scan the wiring diagram. Verify each component. Switch, fuel pump relay, fuses, controller and pump. Don't just pull the fuses and look at them verify they have 12V on both sides when inserted. I think the way the pump works is it pumps a small burst when you turn the key to prime the system but does not kick on full time till the engine starts. So if you get "a weak stream; and then, nothing" it may not be the fuel pump at all. If it cranks but won't fire most often it comes down to corroded connectors on the PTU or the CAS. KKrofft
Follow Ups	90 300zx n/a won't start - kenn371 06:08:55 07/29/08 Start troubleshooting. Connect a hose to the fuel - kkrofft (OH) 06:36:38 07/29/08 Open up your fuel pump controller... - bstyleZ 18:26:47 07/29/08
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