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ZUKIWORLD Discussion Forum => Suzuki 4x4 Forum => Topic started by: Peader24 on February 05, 2007, 04:24:42 PM

Title: bad throttle response
Post by: Peader24 on February 05, 2007, 04:24:42 PM

theres a dead spot right off idle if i blip the throttle... it drives me crazy.. anyone know how to fix this???     87 samurai  1.3l

Title: Re: bad throttle response
Post by: Low Range on February 05, 2007, 06:05:45 PM

Venturi Tube: http://www.lowrangeoffroad.com/samengine.htm

 ;)

Title: Re: bad throttle response
Post by: ZukiPower on February 05, 2007, 07:59:56 PM

Use to have exactly the same problem about four years ago.

The cause was a defective throttle position sensor.

That TPS is simply a potentiometer linked to the throttle.  It tell the computer how much throttle is applied at any moment.

Mine have a small crack in is resistive band.  So when the cursor reach that exact point, the TPS send a zero-volt message and the computer react by decreasing the amount of fuel.

I simply change the TPS (take about 3 minutes! It's a modular component with simple solderless plugs) and it run just fine now.  A new TPS worth about 150$ but I manage to find a used one for 50$.

I've seen on some other forums than that particular problem is very common in '90s zukis.

Title: Re: bad throttle response
Post by: samwisper on February 06, 2007, 08:40:41 PM

Is it carbed? Check acceleratorpump. See if gas squrits out when you push throttle. Check with engine off.