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nissan sentra ignition issues

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aaron7
New User

Jul 9, 2012, 2:44 PM

Post #1 of 5 (2363 views)
nissan sentra ignition issues Sign In
A friend of mine is working on his 1997ish nissan sentra.
The starter turns and sounds good but engine won't start. The spark plugs were replaced but no go.
So it isn't the battery, starter, or spark plugs...which means the problem is past my mechanical skills. :) any ideas as to what the problem is or how to isolate the problem?
Thanks

(This post was edited by aaron7 on Jul 9, 2012, 2:47 PM)


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Jul 9, 2012, 3:06 PM

Post #2 of 5 (2351 views)
Re: nissan sentra ignition issues Sign In
The starter is cranking the engine?


If the engine is cranking, but won't start, you need to check for spark, fuel pressure, and injector pulse. Also wouldn't be a bad idea to see if there are any trouble codes being stored in the ECU. Write down any numbers you get.





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aaron7
New User

Jul 9, 2012, 5:17 PM

Post #3 of 5 (2325 views)
Re: nissan sentra ignition issues Sign In
That's correct, the starter is cranking the engine but it won't start.
Thanks for the advice... I'll check on those three items


aaron7
New User

Jul 15, 2012, 1:35 PM

Post #4 of 5 (2264 views)
Re: nissan sentra ignition issues Sign In
Ok, it isn't getting a spark... and like I said, the spark plugs have been replaced... distributor cap maybe?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 15, 2012, 1:42 PM

Post #5 of 5 (2259 views)
Re: nissan sentra ignition issues Sign In
Is it getting injector pulse?

What is the fuel pressure?

Do you have power supply to the + side of the coil and the injector?



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