Brian* old sc400 problems..all help appreciated
UPDATED
motor: 1UFZE v8
year: 92
WED MARCH 3RD.. i checked spark again and i got spark once...one time only... wtf? any more ideas?
okay i just got this sc400 on feb 23 and its not running, motor turns, starter is fine..
also, prev. owner said the car would drive fine till it warmed up then cut off...
no spark//i changed the coil pack, still nothing
fuel to the rails
fuel pump works
plugs are wett
all help is appreciated guys +++4lol
and some random pics
this car will run while in my hands
Last edited by JDMGRNAV6; 03-03-2010 at 02:26 PM.
no codes im guessing
test your crank and both cam position sensors just a guess.
what did the plugs smell like, do a compression check
your mom loves me
no codes ur right ill update that...Originally Posted by Barefoot
ill check the sensors in the am....
what bout a craping out ecu?? "whats a car do when the ecu is bout to take dump?"
ill check compression tomorrow, cause i need to, but i know thats not the problem right now.. plugs were wet, my nose is clogged up so idk on the smell
the ecu was going to be my next step. or atleast 1 of the next steps.
anymore opinions?
Put fresh fuel in it and check the old stuff for water after you pump it out. Put a fuel gauge on the fuel rail to see what the pressure is at the injectors. If you have good fuel pressure use a noid light at the injector or a analog volt meter to see if the ecu is firing the injector correctly. If there is no injector firing then you have a cam or crank or ecu or wiring problem. Next check the cam and crank signal. You will need a scope to do this. If the cam and crank are scoping out correctly then you need to look at the ecu or the ignition coil. Scope the cam and crank close to make sure the wiring is good. You can also check the resistance across the cam and crank sensor (distributor) and wiring instead of using a scope. If your cam and crank sensor are working right then check your coil for a trigger source with your analog volt meter. If its not getting any signal then its your ecu or wiring in between. Try a new ecu and If the coil has a trigger source then check for spark at the coil not each spark plug wire. That should get you fixed up.
that pretty much sumed it all up...ill work from there thanks
you figure it out?
'82 TE72 SR5 Sport Coupe
3tc
non related question.. but did u remove the lip? i wanted to know if you could measure it for me?
yeah pm me your questions
and honestly if i hooked my ecu in another sc400, and the ecu was bad, would it do the same thing in that car? and could i use that test to rule out a bad ecu?
He broke it towing it.....
'82 TE72 SR5 Sport Coupe
3tc
the tow guy broke it, not me bish, i pulled up and it had already happened.
Take it easy lady....
BUMP TO HELP A HOMIE OUT!
'82 TE72 SR5 Sport Coupe
3tc
MORE HELP
por favor
Try searching on club lex. That is how i figure out whats wrong with my sc3. Welcome to the Lex fam.
hmmm. my sc4 did the same thing after the 4.7 bottom swap. somehow the ecu went bad. a lot of the sc4 have that problem. so i just went and got another ecu and was fine. btw u should go check out clublexus. Lots of good ppl there that know a lot about this stuff. they helped me out. and yes. welcome to the lex family.
1995 Sc470
thanks guys for the help...
and yes club lex is a great help as well
Car is officially running..
The fix was a new ecu
thanks you guys for all your help
barefoot, batlground
Last edited by JDMGRNAV6; 03-05-2010 at 11:01 PM.
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