Suzuki Forum Suzuki Forums

» Wheel & Tire Center

» Sponsors
» Sponsors
Go Back   Suzuki Forums: Suzuki Forum Site
Register Home Forum Active Topics Photo Gallery Search Today's Posts Mark Forums Read

Please Visit our Site Sponsors

Suzuki-Forums.com is the premier Suzuki Forum on the internet. Registered Users do not see the above ads.
View Single Post
Old 09-06-2008, 01:16 PM   #5 (permalink)
jtgh
Veteran
 
Join Date: Apr 2007
Posts: 9,648
Gallery: 0
jtgh is on a distinguished road
Default

lets trouble shoot this. ( set by step)
cpl injectors ( you found 2 , throttle body injectors in 1 day, wow) they cost like $225 each new. 8v has only 1 injector.

ok see my next photo , for $1.40 , a solid answer.

read the restance of the injector, it is about 1 ohm (harbor freight $3 meter)
spec, is 0.8 .to 1.8 ohms, never hot wire it. or it will just blow up.

if the fuel pressure is 30psi and the coil is good.
next attach this noid lamp to the output of the ecu at injector unplugged,
crank see it flash like my photo.
if it flashes ,then injector is clogged (screens or worse) or the pressure is being measure on the back side of fuel filter and filter is clogged up.

http://carfix.stufftoread.com/NOID/91-noid-sf1.jpg

photo is shaking ,cuz im cranking.

see RS pn there? cool huh.

now the we know 3 things, for a fact we can proceed.
1:good filter, good, pressures to injector. ( very common fail)
2:If NOID passes, then injector is bad.
3: Noid fails. hummmmm.

Now we finally get to the ECU failure path,
Dont panic and buy 2 spare ECU yet.

the Ecu will drop injectors if TPS signals W.O.T. all the time( this is the UNFLOOD mode)
the ECU will drop injectors it if the spark supressor is bad or just unplugged.

the ECU injector wires are bad,open or grounded out.
the ecu power is missing. (power +12v or Ground missing open or bad)

The ECU main cap.'s can be bad. ( i have whole page just for that)
last is ECU bad. (keep fath)

many times it is a simple problem, and not an expensive part bad. (mostly)









--------------------data off my fuel pump page.---------------- see it?

At the input to the fuel filter the pressure must be: All pressures, here are out other Suzuki FSM.
34.2 to 39.8 PSI (key on) Static test.
after 1 minute of key off , the pressure should be above 21.3 Psi . Residual test:
While running the pressure should be while at idle , 24.2 to 29.9 PSI. <<<< THIS IS THE CRUCIAL TEST.




WOT = WIDEopen throttle, 70% or more = WOT.
jtgh is offline   Reply With Quote
 
Powered by vBadvanced CMPS v3.1.0

All times are GMT -5. The time now is 12:54 PM.


Powered by vBulletin® Copyright ©2000 - 2010, Jelsoft Enterprises Ltd.