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ZUKIWORLD Discussion Forum => Suzuki 4x4 Forum => Topic started by: sidekick101 on August 25, 2006, 10:16:40 PM

Title: fuel injectors
Post by: sidekick101 on August 25, 2006, 10:16:40 PM
would these cause my bad gas milagfe? any way to tell if the are faulty?
Title: Re: fuel injectors
Post by: wildgoody on August 26, 2006, 12:24:27 AM
No, more likley a bad O2 sensor or in
need of a tune-up, BTW you didn't mention
the engine you have
Title: Re: fuel injectors
Post by: sidekick101 on August 26, 2006, 11:23:35 AM
my bad sorry. 1.6L FI. i wasjust thinkin that cuz a friend told me it would cause rough idle. and at the start up it is really shaky
Title: Re: fuel injectors
Post by: Uncivilized on August 26, 2006, 01:48:53 PM
my bad sorry. 1.6L FI. i wasjust thinkin that cuz a friend told me it would cause rough idle. and at the start up it is really shaky
What are the RPM's at when you first start it? -usually your description tends to be the truck not kicking into cold-start high idle(around 1400/1500 rpm) Mine is doing this right now, but it's not rough for very long, only about 1 minute, but when the winter comes, I'm going to see problems, which is why I want to get it fixed soon. On my honda's, it's mostly been the coolant temp sensor to cause this, I haven't looked into the zooks though, maybe someone here knows.
Title: Re: fuel injectors
Post by: sidekick101 on August 26, 2006, 03:18:43 PM
its exactly that but rough for one minute at 1000RMP
Title: Re: fuel injectors
Post by: wildgoody on August 26, 2006, 03:30:50 PM
Quote
my bad sorry. 1.6L FI.

Ya, I allready know that, what engine? 8V or 16V  ;)
Title: Re: fuel injectors
Post by: sidekick101 on August 27, 2006, 06:46:59 AM
i think i'm half retarded most dayts lol 8V
Title: Re: fuel injectors
Post by: wildgoody on August 27, 2006, 08:39:39 AM
You only got 1 injector on an 8V engine, I would
start with O2 sensor, and see, then work around
to the Cat and air/coolant temp sensors, make sure
the MAP sensor hose is connected and not leaking,
other than that the standard tune-up stuff, there isn't
much else on these that causes bad mileage, other
than huge tires  ;D

BTW what are you calling bad mileage?  I only ever got
23 stock brand new on the freeway with an auto trans.
Title: Re: fuel injectors
Post by: sidekick101 on August 27, 2006, 09:11:41 AM
bad is liek 16. put 235s on her and it went from 14 to 16. go figure went up lol.. its a new o2 sensor so shouldn't be that, new plugs, wires, pvc valve all new fluids, anythign else i should look at?
Title: Re: fuel injectors
Post by: wildgoody on August 27, 2006, 12:21:38 PM
Ya, the O2,  is the new one a Bosch ???
I've had trouble with them, OEM one lasted
like 15 years, I should of kept it.

Mileage up, ya, lower RPMs = better MPG

If the O2 turns out to be OK, I'd say the cat is plugged,
an emmissions check will verify it, if you can find a $25
place for just that, a new cat is $90 at Autozone, plus
welding in.

I'm getting 16+ MPG in my Chevy Truck, with the savings
on fuel these fixes could save $$ in a hurry
Title: Re: fuel injectors
Post by: sidekick101 on August 28, 2006, 08:50:03 PM
low and behold it is a BOSH lol. but thats what bumped it form 14 -16. as for the cat it shouldn't be. its  barnd new . whole exhaust is form down pipe back bout 4 months ago. any rexccomnedation on the kind of brand to get for an o2 sensor
Title: Re: fuel injectors
Post by: wildgoody on August 28, 2006, 09:48:44 PM
Well a Nippondenso is OEM I think, you
could look for one of those, or pull a used
one out of the wrecking yard, find a Japanese
car, match your wires, 1, 3, or 5 wire sensor
and grab it.

your increase from 14 to 16 could be the exhaust
system, and the O2 could of been defective like
mine was out of the box   :P
Title: Re: fuel injectors
Post by: Rhinoman on August 29, 2006, 10:18:12 AM
Have you checked the valve lash and timing and done a compression test? What colour are the plugs running?
Title: Re: fuel injectors
Post by: Jimiweld on August 29, 2006, 03:05:26 PM
Hey Wildgoody
 I Changed my exhaust manifold and when I did that I put a new Bosch O2 sensor in, I get 20mpg though so what would tell me if it were not working right?
Title: Re: fuel injectors
Post by: sidekick101 on August 29, 2006, 09:57:59 PM
ineed to pick up a manual i think lol. i have no clue where to begin for the valve lash or do a compression test. but as for the timing will try that in the mornign seeing as you helped me on that one:) thanx Rhinoman
Title: Re: fuel injectors
Post by: wildgoody on August 29, 2006, 10:27:18 PM
Hey Wildgoody
 I Changed my exhaust manifold and when I did that I put a new Bosch O2 sensor in, I get 20mpg though so what would tell me if it were not working right?


That's about right with your setup