'92 Sentra GA16DE starting.... - Nissan Forum
GA16DE 1.6L Engine Engine Discussion: 91-99 Sentra, 95-98 200SX, 91-93 NX1600

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post #1 of 17 Old Nov 22nd, 2004, 10:10 PM Thread Starter
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'92 Sentra GA16DE starting....

I just finished up the motorswap in my Nissan, even drove it around the block several times to see how she ran... she needs a bit of exhaust work, but otherwise not bad. After letting it sit over the weekend, I went out to start it and she simply would not start. Plenty of battery juice cranking the starter away. The Tach needle moves and it acts like it wants to start, just doesn't quite fire off. I got it started once, but letting it crank and crank till the tach reached over 1000 RPMs or so, then it ran rough for a few seconds and worked itself out and ran fine once I had it started.

After I completed the motorswap it took a bit of doing to get it started the first time, but that might have been due to the motor not running for awhile. After I got it running it did have a bit of an idling issue, mainly it dropped so low it didn't wanna idle, so I adjusted the throttle cable a bit and all went well.

Any ideas, thoughts, or suggestions as to why she doesn't wanna start??

Thanks,
Dave
'92 Nissan Sentra GXE - 198k and counting
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post #2 of 17 Old Nov 23rd, 2004, 07:54 AM
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assuming your chains are positioned perfectly and i'm sure you put new plugs in there after the swap. since it started before i'm sure you're getting fuel. is it possibly flooded? pull a plug and check it. if it's flooded pull out all the plugs, disconnect the ignition and fuel pump, and crank over several times (give starter a breather in between these). put everything back but before you try to start it again, recharge your battery, even if it 'reads normal'. besides that, hmmm...is your air filter clean?

GA16DE
post #3 of 17 Old Nov 23rd, 2004, 02:17 PM Thread Starter
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Before I dropped the new motor in, I replaced the plugs, wires, distributor cap and rotor, water pump, thermostat, clutch, was going to do the front and rear main seals, but they had VERY recently been along along with new freeze plugs already in the motor. The air filter is not new, but its not very dirty either.

I can get the car to start by cranking on the starter and pushing the pedal to the floor, it will eventually start, but usually bogs down almost like its short on gas, but it will stay running. After I get it started, it will run and runs fine, although it accelerates a bit weak, not quite as peppy as it should be.

Thanks,
Dave
'92 Nissan Sentra GXE - 198k and counting
post #4 of 17 Old Nov 23rd, 2004, 02:30 PM
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fuel pressure regulator vacuum line, or fuel pump dieing?
post #5 of 17 Old Nov 23rd, 2004, 10:18 PM
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Quote:
Originally Posted by Slacky
fuel pressure regulator vacuum line, or fuel pump dieing?
yeah, maybe check fuel pressure between the fuel filter and the rail. maybe also timing (my car wouldn't start when my upper timing chain was replaced a link off on the exhaust cam) issue?

GA16DE
post #6 of 17 Old Nov 23rd, 2004, 11:37 PM Thread Starter
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Just a thought I had so i took a can of starting fluid and shot it into the intake and turned the key and it cranked and started right up almost. After it started though, it died down and stalled... acting like a fuel problem to me. How can I check fuel pressure? I don't see a relief of any sort at the fuel rail, but I could be missing it....

Thanks,
Dave
'92 Nissan Sentra GXE - 198k and counting
post #7 of 17 Old Nov 23rd, 2004, 11:50 PM
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well now u know its a fuel delivery problem, check the power comin out of the pump and unplug the regulator and fool around with it and all other fuel related parts see if u can alter any engine behavior
post #8 of 17 Old Nov 24th, 2004, 12:07 AM Thread Starter
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I can here the fuel pump running... not that it means a whole heck of alot besides the fuse is good and the relay is good. Can I take the hose off the fuel filter and turn the ignition on and see if fuel spits out fast or not? Yeah, its a lame way to check it, but it should work.. right??

Thanks,
Dave
'92 Nissan Sentra GXE - 198k and counting
post #9 of 17 Old Nov 24th, 2004, 01:56 AM
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Quote:
Originally Posted by Modemagic
I can here the fuel pump running... not that it means a whole heck of alot besides the fuse is good and the relay is good. Can I take the hose off the fuel filter and turn the ignition on and see if fuel spits out fast or not? Yeah, its a lame way to check it, but it should work.. right??
Don't do that... if you hear a whirring from the fuel pump when you turn the key, then it's probably not the pump. Good luck.

Kindfiend

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Last edited by Kindfiend; Nov 24th, 2004 at 02:04 AM.
post #10 of 17 Old Nov 24th, 2004, 08:10 AM
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Quote:
Originally Posted by Modemagic
I can here the fuel pump running... not that it means a whole heck of alot besides the fuse is good and the relay is good. Can I take the hose off the fuel filter and turn the ignition on and see if fuel spits out fast or not? Yeah, its a lame way to check it, but it should work.. right??
if you have to do that, have a friend that can direct the hose into a small container. don't actually start the car, just turn the key until the pump turns on and fuel comes out then stop. but as said above, if you hear it activating, the pump is probably okay.

GA16DE
post #11 of 17 Old Nov 28th, 2004, 12:42 AM Thread Starter
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Is there any other sensors of the sort that could/would affect the starting of the car? I'm just wondering in case its not fuel related. I still have all my old motor parts, so taking a sensor off there and slapping it on would be a quick and easy fix.

Thanks all!

Thanks,
Dave
'92 Nissan Sentra GXE - 198k and counting
post #12 of 17 Old Nov 28th, 2004, 10:36 AM
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It sounds like a faulty injector. The spark plugs will tell the tale. After you get it running and drive until ti warms up, pull all the plugs and examine them. If one (or more) is black, that cylinder is running rich. Replace the injector with one from your old engine.

Lew
post #13 of 17 Old Nov 28th, 2004, 05:00 PM Thread Starter
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So basically clean them all up, get it started and run it a bit, then pull them back out and check it for a black plug?!?!

I just finished changing the fuel filter. Although the gas was nasty, yellow in color, but still no luck in starting it. I checked the motor over from top to bottom, and found two plugs that weren't connected that I cannot verify as to whether they should or shouldn't be plugged in or not.

The first is in the same harness as the alternator. Its a yellow/black wire with a small connector on it. Possibly a voltage meter wire?!?!

The second is under the distributor. Its a single yellow/green wire in a black female connector with a rubber boot around it. I noticed there is a male connector coming out the side of the motor, not sure what its purpose is. Does that wire go there?!?!

Thanks,
Dave
'92 Nissan Sentra GXE - 198k and counting
post #14 of 17 Old Nov 28th, 2004, 05:16 PM Thread Starter
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So I went out and popped out the plugs. Look at the motor from in front of the car and counting left to right, both cylinders 1 and 3 even after being wiped off are still very black. Need to swap out both injectors?!?

Thanks,
Dave
'92 Nissan Sentra GXE - 198k and counting
post #15 of 17 Old Nov 28th, 2004, 06:59 PM Thread Starter
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After getting it started and letting it run awhile... I noticed that the exhaust is rich smelling. (gas) Is this also due to the injector perhaps??

Thanks,
Dave
'92 Nissan Sentra GXE - 198k and counting
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