beautyofpower

it is a 300zx na body with tt swap, i havnt get the dyno done yet, the car is running rich, about 8 mile/gallon, easily get back fire, when i start the car last week, starter crank, but engine wouldn't start up? is the engine flooded with gasoline?
my rx7 got flooded one time, i disconnect the fuel pump wire, crank it for about 10 minutes, which solve the problem.
should i do the same thing to the z?

thanks.

beautyofpower

the engine harness is new, just replaced spark plugs. no sparks while cranking the eingine, this is pain in the ***

beautyofpower

nvm, maybe NGK spark plugs would solve the problem

NismoPick

Unless the spark plugs are horribly mis-gapped, I doubt that's your "no-spark" problem. Have you checked ALL sensor connections? MAF? Temp sensors? Cam sensor? Connection to coil pack?

You mentioned in your first post that you know how to clean out a flooded motor... have you disconnected the fuel pump power & cranked at full throttle?

beautyofpower

i dont think the spark plugs are mis-gapped. i changed all the plug to "NGK" tonite, same thing happened, starter crank, engine didnt run
the engine harness is brand new, i had the car ran with it, no problems.
and i did try to clean out the flooded motor with disconnected the fuel pump fuse, should i crank at full throttle for longer period of time?

NismoPick

That depends on if it's still flooded... power up the fuel pump & try again. If it's a no go, pull a spark plug or two to see if it's wet or dry... or you can simply take a whiff under the hood & see if you smell gas.

beautyofpower

there's no sparks on spark plug, spark plug wasnt wet either after i pulled it out. i am guessing theres no spark, and no fuel goin into the engine. wat else would be wrong.

nzniggles

Check the ECU for error codes. Check the connection to the CAS, that would kill spark and fuel

SpeciallySpiked

is the coil hooked up? :-P

beautyofpower

they all hook up, before goin to the ecu, i may check the ignitor, my friend said taht would be one of the reasons why there's no spark!

beautyofpower

do you guys think all 300zx 90-96 ignitors are comparable? i am thinking of using a non-turbo ignitor for my twin turbo engine.

91zxtt

You seem to be doing a lot of guessing here. Guessing on what migt be wrong can be very expensive. Check the ecu for codes, as was mentioned by someone earlier. Start with those things first.

ZLover4Life

Ignitor? Tell me something... where, on the Z32, is the ignitor...?

jverz

i was beginning to think i missed something in my car

turboZ87.300

Take the crank angle sensor out, spin it by hand and see (hear) the fuel pump, coils and injectors are working.