Q45 not fireing

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henzeville1
Posts: 1
Joined: Sun Jan 17, 2010 9:57 am
Car: 1994 Q45

Post

1994 Q45 was running great and it just quite now it just spines i don`t think it is getting fire any ideas.any help would be great.how do you check to see if it is getting fire?

THANKS ANTHONY


Q45tech
Moderator
Posts: 14296
Joined: Tue Apr 30, 2002 3:19 am
Car: 1990 Q45 342,400 miles 22 years ownership with original engine
1995 G20t 5 speed 334,000 miles 16" 2002 wheels - 205/50/16 Sr20ve vvl

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The best method is to read and the engine and EF/EC sections in the FSM.

A fast and simple way is to observe the current waveforms feeding coils and injectors.

The FSM shows where the different fuses are that feed injectors and coils along with ignition voltage relay.

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Q451990
Moderator
Posts: 11033
Joined: Tue Jul 23, 2002 8:21 am
Car: 1990 Q45 - 118K, 2022 Toyota 4 Runner, 2004 Frontier M/T - 108K, 2012 Xterra (Mom's), 2023 Rogue (Inlaws)
Location: Columbia, SC
Contact:

Post

Welcome to NICO!

You might want to check for fuel. Fuel pump and fuel pump controller failures are common.

Also - you didn't happen to move the car while it was cold and turn it off without letting it warm up completely, did you? If so, it's very possible the engine is flooded. If that's the case try starting it with the accelerator pedal floored. Don't pump it, just floor it and hold the key until it either starts or your battery gives up the ghost.

Good luck!

Heath

maxnix
Posts: 22627
Joined: Mon Jul 22, 2002 8:11 pm
Car: 1995 Infiniti Q45
1995 Infiniti Q45t
2000 Infiniti Q45

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If you truly know the engine is not firing on one or both banks, then check the faulty bank's igniters.


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