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ZUKIWORLD Discussion Forum => Suzuki 4x4 Forum => Topic started by: ffuller on November 04, 2005, 03:14:57 PM

Title: my 1991 sidekick is getting fuel to the injector but will not spray fuel orstart
Post by: ffuller on November 04, 2005, 03:14:57 PM

my suzuki sidekick 1991 throttle body injection is getting fuel to the injector but it will not start.
the injector reads the correct ohms any sugestions?

Title: Re: my 1991 sidekick is getting fuel to the injector but will not spray fuel orstart
Post by: Rhinoman on November 04, 2005, 03:40:09 PM

http://www.suzukiinfo.com

They have a scan of the FSM with lots of diagnostic stuff

Title: Re: my 1991 sidekick is getting fuel to the injector but will not spray fuel orstart
Post by: zaggy on November 04, 2005, 03:44:31 PM

Those symptoms are common with a failed ECU....

- You have fuel pressure?
- You have spark?
- Haven't recently had any valve timing problems?

If you have checked all that stuff and it's ok, I would bet it's the ECU

Zag

Title: Re: my 1991 sidekick is getting fuel to the injector but will not spray fuel orstart
Post by: ffuller on November 04, 2005, 03:52:01 PM

i have checked the fuel and it is pumping fuel to the injector and the zuk will start if you put gas in the throttle body. but the injector will not spray fuel.

Title: Re: my 1991 sidekick is getting fuel to the injector but will not spray fuel orstart
Post by: ffuller on November 04, 2005, 03:54:06 PM

i dont have a gage or know where to hook it up so i dont know if it is getting enough pressure but it pumps a lot of gas.

Title: Re: my 1991 sidekick is getting fuel to the injector but will not spray fuel ors
Post by: wildgoody on November 04, 2005, 06:31:58 PM

We regret to inform you your ECU has died.   :'(

Title: Re: my 1991 sidekick is getting fuel to the injector but will not spray fuel orstart
Post by: zaggy on November 05, 2005, 08:21:12 AM

Yes Dr. Wildgoody........I must concur.

Zag

Title: Re: my 1991 sidekick is getting fuel to the injector but will not spray fuel orstart
Post by: Rhinoman on November 06, 2005, 10:30:09 AM

You might have a break in the wiring, Check the connector to see if you have 12V on one pin.  Check the wiring back to the ECU for continuity.
Have you tried pulling codes from the ECU? you should get a Check Engine Light if the circuit is broken.
Try connecting the injector, very briefly, across the battery and see if it will squirt then.

Title: Re: my 1991 sidekick is getting fuel to the injector but will not spray fuel orstart
Post by: RJkick on November 07, 2005, 04:13:30 PM

Unfortunately, I had a similar issue and indeed it was the ecm

Surly from the board does good work at a reasonable rate and in a few days.