turbo/engine

[kenneth]

its me again im proud to say that i finally bought my 98 gs-t but as yall may know im new to the dsm world an need a lil help with some things..
1st) what size turbo do i have an how can i tell?
2nd) i know i have a greddy bov an pipeing... good or bad
3rd) i bought the car an it was only running on two cylinders and its not getting fire from the coil to the to none firing cylinders, took the timing belt off thought it might have been out of time but its not.. well is now but wasnt to begin with so i need to figure out why its not firing on the other two cylinders.. its got a new coil, plugs, wires, crank sensor, camshaft sensor, ignition module, if anyone can help that would be great... thanks

 

[Absit]

1) Take pictures of the compressor cover and wheel, post them.
2) That depends on if it's properly adjusted and not a knockoff, and recirculated. Pictures are good there too.
3) My brain is broken today, sorry. You're saying you've replaced the coils, plugs, wires, cas, cps, etc and you're still not getting spark at the plugs? On which cylinders?

 

[GsXdSmKingGsX]

You sir, have me all sorts of confused. The fact that you have a GReddy BOV is a good thing but if its vented (no recirculation tube), then its bad

 

[robtheturbopric]

1. 2nd Gen gs-t's came with t-25 turbos. but check the compressor wheel which is the intake side of the turbo it will be stamped there.
2.i agree 100% with Absit
3. Pleas don't work on the car unless you know what you are doing. if you have no choice but work on it yourself get a repair manuel. however i suggest you check fuses before you replace anything else. i might be as simple as the MFI or ECU fuse or relay.
Post pics of everything and gives us an update as soon as any new developments happen.

 

[Talipse96]

First off, welcome to the site.
Look at your turbo and get the numbers off of it and use the seach. You most likely will find your turbo.
While you have your timing belt off you mind as well replace it unless you have already. Water pump and basic timing belt replacement parts.
As far as you not getting spark. Did you try your transistor box? Do you have any CEL's?

 

[DSMReviver]

Congrats brotha, welcome!

most likely its going to be a factory(t25?) but if its non factory then post some pics.

And good luck on your build.

 

[kenneth]

1. 2nd Gen gs-t's came with t-25 turbos. but check the compressor wheel which is the intake side of the turbo it will be stamped there.
2.i agree 100% with Absit
3. Pleas don't work on the car unless you know what you are doing. if you have no choice but work on it yourself get a repair manuel. however i suggest you check fuses before you replace anything else. i might be as simple as the MFI or ECU fuse or relay.
Post pics of everything and gives us an update as soon as any new developments happen.

i know how to work on cars just new to the 4cylinder/turbo world

First off, welcome to the site.
Look at your turbo and get the numbers off of it and use the seach. You most likely will find your turbo.
While you have your timing belt off you mind as well replace it unless you have already. Water pump and basic timing belt replacement parts.
As far as you not getting spark. Did you try your transistor box? Do you have any CEL's?

timing belt is brand new all other belts are new umm transistor box?? cels? im lost here... an ill do that for the turbo

1) Take pictures of the compressor cover and wheel, post them.
2) That depends on if it's properly adjusted and not a knockoff, and recirculated. Pictures are good there too.
3) My brain is broken today, sorry. You're saying you've replaced the coils, plugs, wires, cas, cps, etc and you're still not getting spark at the plugs? On which cylinders?

yes and its cylinders 2 an 3 not geting spark from the coil to the wires...

 

[Talipse96]

The coil transistor box is on your fire wall just under the intake. its a little silver rectangle box that has white wires going to it.

CEL = Check engine light.

Does your turbo flange face down and then curve at a 90* angle to the passenger side of the car?

 

[kenneth]

The coil transistor box is on your fire wall just under the intake. its a little silver rectangle box that has white wires going to it.

CEL = Check engine light.

Does your turbo flange face down and then curve at a 90* angle to the passenger side of the car?

ok ill check that out and there is not codes or check engine light .. yes i believe it does

 

[Talipse96]

Hope this helps.

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[kenneth]

Hope this helps.

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yeah thanks... now what all would this do if it was bad??? also needs the crankshaft gear the belt sits on someone stripped the bolt out and broke half the tooth off the thing

 

[saechao04]

I would test things before I start throwing money at it.

http://www.dsmtuners.com/forums/new...art-no-fuel-prime-no-spark.html#post151265626

Post 6 is a good how to to follow.

 

[Talipse96]

If the transistor was bad it wouldn't allow your coil pack to get any power. You said that you already changed your coil so it is most likely good. You wouldn't get spark if it were your crank angle sensor or cam angle sensor.

Looks like your in need of a new gear.

I agree, I wouldn't just throw money at it. I would troubleshoot the issue and then once I found it I would replace what is needed.

All I am doing is giving him things to check. Since he has already replaced some of the things that might cause the issue he can check those things off the list. Most likely the transistor is unpluged or loose. It MIGHT be the ECU but he won't know untill he checks a few things.

 

[kenneth]

If the transistor was bad it wouldn't allow your coil pack to get any power. You said that you already changed your coil so it is most likely good. You wouldn't get spark if it were your crank angle sensor or cam angle sensor.

Looks like your in need of a new gear.

I agree, I wouldn't just throw money at it. I would troubleshoot the issue and then once I found it I would replace what is needed.

All I am doing is giving him things to check. Since he has already replaced some of the things that might cause the issue he can check those things off the list. Most likely the transistor is unpluged or loose. It MIGHT be the ECU but he won't know untill he checks a few things.

yeah def need a new gear any suggestions on where the best place to get one would be?

 

[Talipse96]

Go to the marketplace in one of the drop downs (latest classified ads) and look for somebody parting out their car. Or go to DSM graveyard and ask them. I'm sure either of those places will hook you up fast.

As far as testing some of the things, get a manual so that you can reference some of the things there. Like ohm's and voltage.

 

[kenneth]

Go to the marketplace in one of the drop downs (latest classified ads) and look for somebody parting out their car. Or go to DSM graveyard and ask them. I'm sure either of those places will hook you up fast.

As far as testing some of the things, get a manual so that you can reference some of the things there. Like ohm's and voltage.

thanks an ive got a manual it came with tha car.. i bought it for 1800 with 122,000 miles has boost controller turbo timer pillar guages ect.... i dont think i came out with a bad deal

 

[Talipse96]

Dang, no you didn't. Great find.
Just remember, this site if FULL of information. If there is any questions that you have make sure you use the search first. There will most likely be an answer to your problems. Some members get irratated if you post something that has already been answered 100 times.

 

[kenneth]

Dang, no you didn't. Great find.
Just remember, this site if FULL of information. If there is any questions that you have make sure you use the search first. There will most likely be an answer to your problems. Some members get irratated if you post something that has already been answered 100 times.

yeah a buddy of mine had it and didnt wanna mess with it anymore so i bought it and thanks ill do that... i hope to have this car running some time soon or its going to the shop with my income tax money

these are some pics of the car to maybe help out with my questions... thanks

posted pics of my turbo an bov ect that yall asked for

i put up the pics u guys asked for

 

[kamikazi]

it looks like from what i can see that ## running a 14b maybe a 16g judging by the pic i would say 14b till u found out for sure that way u wont be disappointed but nice deal bro

 

[kenneth]

it looks like from what i can see that ## running a 14b maybe a 16g judging by the pic i would say 14b till u found out for sure that way u wont be disappointed but nice deal bro

thanks man idk alot about these cars but im willing to learn an all.. i love em just need to figure out my problems and get it running so i can drive it..

 

[wkmitsu]

Hope this helps.

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What you're thinking of is the Power Transistor Unit (PTU), which is probably the OP's problem. But what you've indicated in this photo is the fuel injector resistor pack, it is what allows our car's to run low impedance injectors and doesn't effect the spark.

The PTU is a wide plug located on the intake manifold right next to the coil pack.

http://www.dsmtuners.com/gallery/files/9/3/3/0/2/img_0512.jpg

Also to the OP, since you have a 98 I recommend removing that SAFC and getting EVOScan for your tuning needs. It is a much more sophisticated method, it's cheap, and leaves you with a hell of a lot more options than that old SAFC II.

You can read more about this here:

http://www.dsmtuners.com/forums/tun...first-flashed-dsm-ecu-98-99-flashing-faq.html

 

[kenneth]

What you're thinking of is the Power Transistor Unit (PTU), which is probably the OP's problem. But what you've indicated in this photo is the fuel injector resistor pack, it is what allows our car's to run low impedance injectors and doesn't effect the spark.

The PTU is a wide plug located on the intake manifold right next to the coil pack.

http://www.dsmtuners.com/gallery/files/9/3/3/0/2/img_0512.jpg

Also to the OP, since you have a 98 I recommend removing that SAFC and getting EVOScan for your tuning needs. It is a much more sophisticated method, it's cheap, and leaves you with a hell of a lot more options than that old SAFC II.

You can read more about this here:

http://www.dsmtuners.com/forums/tun...first-flashed-dsm-ecu-98-99-flashing-faq.html

thats been replaced.. and ok thanks for tellin me about the evoscan

 

[John H]

Piping and BOV are fine, once you get it running correctly check for any boost leaks and enjoy!

 

[kenneth]

i put the car back in time and went to turn it over and it back fired... the cams are lined up the crank is lined up the oil sprocket is line up could this back fire still mean it out of time?? of just burning flooded gas out the cylinders????

 

[92EagleAWD]

I had a the exact same problem with a 97 GS-T i was working on, it ended up being a loose power wire to one of the coils, which are usually covered by a small plastic piece so you dont see them. So we re-attactched the wire and relocated it to the side of the strut tower and it ran like a champ. Since 2 and 3 share the same coil that is most likely your problem!