90 GSX Big Problem HELP NEEDED

[1990GSXEclipse]

Okay so this is my first post on this site. I bought a 1990 GSX recently I had to reassemble the whole Motor. I installed a new Coil pack and all. Well I dont know the reason why the whole motor was dissambled but its all back togather now. And now I have ran in to the problem of, the car used to sound like it was about to start. So I thought I needed to Junp it, So i got my other car, and hooked up some jumper cables and all tried it, and nothing, it was spinning the crank and all, then i disconnected the cables and tried with out them and nothing, the crank isnt even spinning. I dont know the proble. I hooked up all the wires, all the wholes, the radiator, new coil pack, new sprak plugs and spark plug wires, 10W-30 Synthatic oil, I have one who i could not plug and is the whole off the Turbo intake that leads to the Blow-off Valve, The car is stock. Only has an Exasut tip. there is a new ECU for it and
So I have no idea to whats wrong wit it. it wont start, the battery is brand new...Please help me out.

Elvis AkA Tha Kidd

 

[luv2rallye]

If it cranks when you jump it but not on its own (with a new battery), remove the battery cables and clean the terminals that clamp onto the battery posts. Use a wire brush and sandpaper on the inside. Then clamp them on tight and try again.

 

[1990GSXEclipse]

I have brand new battery terminals and all... how would i go about to check the fule pump?

 

[NOSLO2PT0]

So i got my other car, and hooked up some jumper cables and all tried it, and nothing, it was spinning the crank and all, then i disconnected the cables and tried with out them and nothing, the crank isnt even spinning. I

First of all, sounds like the battery in the car is dead. Second, the car isn't starting due to lack of fuel, spark, or air. Most likely fuel or spark related. Get someone that can help you troubleshoot the fuel/spark issues, then replace/repair what is faulty.

 

[1990GSXEclipse]

No the battery in the car is good. itz new, its producing enery to the whole car, the lights work and everything is normal, but there is no spark at all. I checked for a spark and nothing. its not doing anything. could it not stat due to bad injectors? i know the fule rail is okay, but im not sure if the injectors are okay. i think im going to upgrade them to 550CC ones but i dont know if that would help the problem or not. so i will order the new injectors tomorrow, and get them in by next week. so would there be any other reason to why it would star t up?

 

[NOSLO2PT0]

No the battery in the car is good. itz new, its producing enery to the whole car, the lights work and everything is normal, but there is no spark at all. I checked for a spark and nothing. its not doing anything. could it not stat due to bad injectors? i know the fule rail is okay, but im not sure if the injectors are okay. i think im going to upgrade them to 550CC ones but i dont know if that would help the problem or not. so i will order the new injectors tomorrow, and get them in by next week. so would there be any other reason to why it would star t up?

Reread what you just wrote. "there is no spark at all" If there is no spark, why are you concentrating on the injectors? Swap the ECU, coil pack, power transistor, and cam angle sensor for KNOWN good units out of running cars. If you turn the key and the engine does NOT turn over, then you might want to check the grounds on your battery, or the ground wire for the starter.

Don't order parts if you don't have to.

 

[1990GSXEclipse]

Well i do need new injectors. Sorry I dont know much about DSMs, I just got this one and I am trying to learn. Where is the Starter located. I know dumb question but I dont know where it iz. I will check the ground and everything and where is the power transistor?

 

[ROOKIE1]

Starter is on passenger side . Located under intake manifold . If you just got it how do you know ecu is new ?

 

[1990GSXEclipse]

I bought the car off a friend. and I know the ECU is new because he got a new one right before he sold it to me, well couple months before he sold it to me... but as far as I know the ECU is new and good.

 

[laserwitpsi]

You might also want to check how many cold cranking amps your battery has. I have ran into no start problems recently because of the purchase of a battery the wrong size. The people in the mechanics department at Wal Mart sold me the wrong battery. What type of battery is it and what is the cold cranking amps. I purchased an Optima battery since then and it is GLORIOUS!

 

[1990GSXEclipse]

How many Cold cranking amps am I supposte have and how do I figure out How many I have?

 

[NOSLO2PT0]

You might also want to check how many cold cranking amps your battery has. I have ran into no start problems recently because of the purchase of a battery the wrong size. The people in the mechanics department at Wal Mart sold me the wrong battery. What type of battery is it and what is the cold cranking amps. I purchased an Optima battery since then and it is GLORIOUS!

That's not going to be a problem. Brand new battery, if fully charged, WILL turn over a 4G63 engine. I don't care WHAT size it is. I currently have a lawnmower battery in the car that has maybe 285CCA and the car ALWAYS starts in the dead of winter. Hell, my little Odyssey battery that had maybe 185CCA turned the car over with no problems.

 

[1990GSXEclipse]

Okay so then the batter will work fine. I'm not sure but tonight I will go and Check all the ground wires, and all the vacume hoses I can. So is there any other reasons it might not turn over even if everything is grounded right?

 

[1990GSXEclipse]

Okay so I check all the ground wires and everything. everything checked out okay. I am goin to the store to day to buy all new vacume hoses. I know rreplacing vacume hoses is not goin to get it running. but What else can be done to get the car running.

 

[splattj]

He couldn't be that much a friend if you don't know why the motor was apart in the first place.

1. Have you checked for spark? (take out a plug and lay it down on a grounded part of the motor the have someone try and start the car see if it sparks.)

2. Take out a plug after cranking it for a few seconds. Is the plug wet with fuel?

If you have spark and fuel then your issue is timing or compression. Find out why the motor was apart. I have a suspicion the timing belt went bad and the engine ate some valves. You may have put a bad head back on the car. You should check for compression if the fuel and spark check out:
http://www.dsmgrrrl.com/FAQs/compression.htm

Good luck.

 

[1990GSXEclipse]

Okay the reason the car was taken apart was because he was going to have the motor completly rebuilt, stroker and all that. then he decided not to do iit due to as far as i know money issues or something, thats where I came in and bought the car. but as for everything else that u have said there is no spark I have tried that. its to making one, I have a brand new battery in it and there is no spark to it.

 

[DevilSperm]

Do you have a haynes or a chilton? You need to test your power transistor and your coil pack. Also might want to make sure you didnt blow your MPI fuse for some reason (if you havent checkd that yet) Once you test that stuff and know its good, then post back.

 

[NOSLO2PT0]

Do you have a haynes or a chilton? You need to test your power transistor and your coil pack. Also might want to make sure you didnt blow your MPI fuse for some reason (if you havent checkd that yet) Once you test that stuff and know its good, then post back.

Hey. Way to go!! Good thing you read this entire 16 post thread.

Post #6 here. http://dsmtuners.com/forums/showpost.php?p=1858868&postcount=6

Way to waste bandwidth.

Also, please explain how blowing an MPI fuse will cause the car to have NO spark?

 

[DevilSperm]

why are you being a total #### wad? I never said that, get down off your God damn pedistal, im tryin to help the guy, as you are. prick. The guy is swapping vaccum lines out for Christs sake. Im not trolling for points like you. And on a side note, swapping this shit out is a little more difficult than just testing the shit, dont you think?

 

[The_EE]

If its a automatic then you might need to make sure that its really in park. I had that problem when I put my transmission back in, it was not in the right gear to start with so it would not crank. just my 2 cents.

 

[1990GSXEclipse]

No the car is a Stick, And as the vacume lines I'm swapping them out for a reason as, the reason is, The ones that are in there are old and falling apart, So i got some new silicone ones there red and all... but thats besides the point. as for the MPI fuse I dont know where that is or what it is and how do I check it out? And where is the Power Transistor, I check all of the Fuses in the Engin bay any they were all good. as far as i know.

 

[DevilSperm]

The MPI fuse is on the + battery cable,up where it connects to the battery, there is a 3 fuse thing there. this would cause you to not have fuel. Theres a slew of things that could have gone wrong to cause it to blow, its something worth checking out anyway. You said you dont have spark though, so I would definatly look into the coil pack and PT, test them via the chilton/haynes instructions (or swap them out like said above) This way, if they are ok, you can start looking elsewhere

 

[1990GSXEclipse]

Well I will check out the Fuses there. But as for the Coil pack I have already replaced it. And still no spark. So im thinking its not the coil pack, Someone told me it could be the Distibutor, but I dont know where it is and I also dont know how to check if it is good or not.
But I do have another question. I have found a 2 wires that are tied togather, and one seprate all in the same location, next to the starter, its about 6 inches below the Coil pack. there 3 wires and I dont know where they go, They look like they have been cut or something. I'm not sure if it was cut before or if it comes like that, then near the fuel rail on the drivers side there was a one wire with a attachement peice on it that I also dont have a single Clue to where that would go. So if anyone knows what Im talking about plez help me. I need this car up and running ASAP!!! But yeah also if you live in te springs and wouldnt mind commin here to help me that would also help me alot. Thank you.

 

[toybreaker]

I've had some troubles reassembling someone elses leftovers, so I know how confusing it can be. There's always so many wires and hoses to deal with on these cars it can be a daunting task to get one fired up from basket case status...

So, I think a return to basics is in order. It sounds like this was a fully dissassembled mess of a car. I have seen enough of these scenerios to know a simple visual inspection can pay great divedends in the end.

Firstly, as already stated, check all fuses, especially the fuses on the positive battery cable. Physically pull them out and look closely at them..if in doubt, have somebody at autozone or wherever check them with an ohm meter...

It's a 90. That means the crank angle sensor connects at the firewall. Let's start there. The harness goes under the throttle body and it could be pinched there. Also, 90's seem to have trouble with the harness right as it comes out of the cas. I've had a couple of issues with the wires breaking right at the case. Make sure none of the pins are bent where it plugs into the firewall harness.

Next, let's check the harnesses at the coils and transistor. Just unplug them and look at the pins..Every now and then pins get bent, and it's an easy fix. The harnesses can also get covered in spooge, and some can get inside the connector and on the pins. Clean with electrical cleaner if required.

Did you check spark at more than one cylinder? Try the companion coil and see if it has spark..

Since you're already in there, you know more than anyone else where the questionable parts of the reassembly happened. Don't hesitate to ask about any thing that struck you as funny or wierd during assembly. Let's just check all the basics first.

Good luck...

 

[1990GSXEclipse]

Okay so All the fuses Checked out good. there all fine. I have even check the Relay fuses and all. And the Crank sensor as far as I know was good/is good, I say that because I have no idea on how to cheeck that. and all the pins have checked out good. but Man. reassembling this thing is not easy. It truly is a Japenesee Gig Saw puzzle. I think its how u spell it, But yeah The batter died the other day because I left the interior lights on, so i recharged it to day, and still no spark. I have checked for a spark on every single spark plug and not one is getting anything. The coil pack was replaced, So The junkyard where I got it they said it was in functional order, When u crank up the car, if u have someone by the Exaust can, there is smoke, not alot but there is some. the car is trying, but to no Avail.