My supra has about 50 hp:( whats wrong?

Fredde · 05-31-2008, 09:28 AM

Hi!

my supra turbo revs slow, sputters when i hit the gas. and is really powerless. its been sitting for 3 years so i?ve changed all vacuumlines and some hoses. The bov is halso replaced scince it was stuck in open.

The idle is close to perfect, and i get 0,45 bar (correct) boost from the turbo.

I am not getting any codes.

Anyone got an idea?

/fredrik

supramacist · 05-31-2008, 01:10 PM

Check your timing.

Fredde · 05-31-2008, 03:39 PM

ok, i will do that, but i cant find out how to do it, i?ve searched the forum without succes, and tsrm says i need a strobe light, cant it be done without a strobe light?

CyFi6 · 05-31-2008, 07:58 PM

no you have to have a timing light to properly set the timing.

supramacist · 06-01-2008, 05:55 PM

You should invest in one of these.

They are around 50$ at your local parts house.

Maybe you can rent one for a day. But you're going to need one full time at the drop of a dime.

j3pz · 06-02-2008, 12:51 AM

what engine do you have? 7m? 1g? 1jz? check for loose connectors, vacuum hoses, and boost leaks. did you drain the old gas?

tsupra89 · 06-02-2008, 05:32 PM

check fuel pressure. but first since its been sitting for 3 years i would go ahead and change the fluids the fuel filter. spark plugs, wires, stuff like that then try it. i have seen a cars fuel filter stop up when nothing is going through it for a while kinda like gum up. but never stopped working. if your not getting enoguh fuel your not gonna get power. same with air check intake clean filter. or replace depending on what your doing. but i would recommend check fuel pressure on a 1989 toyota supra turbo 7mgte it should be around 35-45 psi running. when you turn the key it should go up to somewhere around there if it doesnt i would first change fuel filter then check agian.

parts you need:

fuel pressure kit
line dissconnect tool
metric set of wrenches
sockets and rachets

its very simple the fuel filter is located right next to the lsd ( limited slip differential) i dont remeber exactly where but close really close. then check it out agian with the fuel pressure guage.. also since its been sitting for 3 years the gasoline might have lost its volatility so you might wanna get some 93 octane and throw in there and see if that helps. or octane booster thats prolly a better price then 4 something damn dollars for a gallon. if that doesnt work post that it didnt work and i will try to come up with something else.

JPJ · 06-04-2008, 09:21 PM

Quote:

Originally Posted by tsupra89

also since its been sitting for 3 years the gasoline might have lost its volatility so you might wanna get some 93 octane and throw in there and see if that helps. or octane booster thats prolly a better price then 4 something damn dollars for a gallon. if that doesnt work post that it didnt work and i will try to come up with something else.

Great advice!!!

tsupra89 · 06-05-2008, 01:35 AM

well i try my best let me know if anything works. that i gave you advice on

05-31-2008, 09:28 AM	#1
Fredde Stock Join Date: May 2008 Location: Sweden Posts: 9	My supra has about 50 hp:( whats wrong? Hi! my supra turbo revs slow, sputters when i hit the gas. and is really powerless. its been sitting for 3 years so i?ve changed all vacuumlines and some hoses. The bov is halso replaced scince it was stuck in open. The idle is close to perfect, and i get 0,45 bar (correct) boost from the turbo. I am not getting any codes. Anyone got an idea? /fredrik

06-02-2008, 12:51 AM	#6
j3pz 500whp yet? Join Date: Nov 2005 Location: Mechanicsville, MD, US of A, 20659 Posts: 1,060	what engine do you have? 7m? 1g? 1jz? check for loose connectors, vacuum hoses, and boost leaks. did you drain the old gas? __________________ 88 N/A w/ 5spd - stock - not running, bhg 87 turbo/targa w/ 5spd- fidanza light weight flywheel, new oem slave cylinder, apexi air filter, no ac and no heat

06-02-2008, 05:32 PM	#7
tsupra89 3" Exhaust Join Date: Sep 2007 Location: asheville Posts: 71	check fuel pressure. but first since its been sitting for 3 years i would go ahead and change the fluids the fuel filter. spark plugs, wires, stuff like that then try it. i have seen a cars fuel filter stop up when nothing is going through it for a while kinda like gum up. but never stopped working. if your not getting enoguh fuel your not gonna get power. same with air check intake clean filter. or replace depending on what your doing. but i would recommend check fuel pressure on a 1989 toyota supra turbo 7mgte it should be around 35-45 psi running. when you turn the key it should go up to somewhere around there if it doesnt i would first change fuel filter then check agian. parts you need: fuel pressure kit line dissconnect tool metric set of wrenches sockets and rachets its very simple the fuel filter is located right next to the lsd ( limited slip differential) i dont remeber exactly where but close really close. then check it out agian with the fuel pressure guage.. also since its been sitting for 3 years the gasoline might have lost its volatility so you might wanna get some 93 octane and throw in there and see if that helps. or octane booster thats prolly a better price then 4 something damn dollars for a gallon. if that doesnt work post that it didnt work and i will try to come up with something else. __________________ 89 Supra Boosted 11psi lexus afm k&n air system aeromotive fuel pressure regulator walboro fuel pump stage 3 weitght reduction koki style tail lights silver and black 2 tone paint Enkei rs7 17" 17.5lbs each hankook ventus hr2's 225/45/17 apc hood pins yellow fogs ----------------- Soon To be Megan racing seats, roll bar, either takata or sparco harnesses

06-05-2008, 01:35 AM	#9
tsupra89 3" Exhaust Join Date: Sep 2007 Location: asheville Posts: 71	well i try my best let me know if anything works. that i gave you advice on __________________ 89 Supra Boosted 11psi lexus afm k&n air system aeromotive fuel pressure regulator walboro fuel pump stage 3 weitght reduction koki style tail lights silver and black 2 tone paint Enkei rs7 17" 17.5lbs each hankook ventus hr2's 225/45/17 apc hood pins yellow fogs ----------------- Soon To be Megan racing seats, roll bar, either takata or sparco harnesses

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Begginer to SUPRA and cars, I GOT A FREE SUPRA, PLEASE HELP!!	89MkiiiSupra	Non-Generation Specific Questions	5	06-01-2010 06:48 AM
Kill Board!	Isphius	Show n Tell	95	01-25-2010 05:05 AM
Questions about MKIV Supra	ukno0003	MKIV Supra	5	11-06-2008 10:53 AM
Dream Offer	Karma_Supra	MKIV Supra	22	10-17-2007 03:04 PM
whats wrong with my supra????	frankwhite	MKIII Supra	10	12-19-2005 07:01 PM

05-31-2008, 01:10 PM	#2
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	Check your timing.

05-31-2008, 03:39 PM	#3
Fredde Stock Join Date: May 2008 Location: Sweden Posts: 9	ok, i will do that, but i cant find out how to do it, i?ve searched the forum without succes, and tsrm says i need a strobe light, cant it be done without a strobe light?

05-31-2008, 07:58 PM	#4
CyFi6 3" Exhaust Join Date: Oct 2007 Location: SLO Posts: 234	no you have to have a timing light to properly set the timing.

06-01-2008, 05:55 PM	#5
supramacist 1000whp postwhore Join Date: Apr 2007 Location: Escape from the Prison Planet Posts: 1,356	You should invest in one of these. They are around 50$ at your local parts house. Maybe you can rent one for a day. But you're going to need one full time at the drop of a dime.