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ZUKIWORLD Model Specific Suzuki Forum => Suzuki Sidekick, Vitara, Geo Tracker (Gen. 1 Platform) 1989-1998 => Topic started by: kng254 on March 19, 2012, 03:20:32 AM

Title: wont maintain steady idle?
Post by: kng254 on March 19, 2012, 03:20:32 AM: 1997 Suzuki sidekick sport 1.8L 158,912miles
Starts fine once warmed up wont maintain idle.
Once I stop at light the idle bounces below 800 and cuts off sometimes I can save it if I tap the gas pedal.
If I stop and let it run it will cut off. I cleaned E G R this weekend still same thing. Didn't improve. Visual inspection vacation lines they seem fine no leak sounds.

Any ideas. Thanks
Title: Re: wont maintain steady idle?
Post by: kng254 on March 19, 2012, 04:11:35 AM: When I'm in the parking lot and I put the car in reverse It will stall sometimes.
When I'm on the highway 2000-2500 rp m's feels like a miss. But no engine light comes on.
I put the reader on got no codes. Pull MAF to make sure SES bulb in dash works (it does ).
Title: Re: wont maintain steady idle?
Post by: DonD on March 19, 2012, 07:37:08 AM: Mine was running crappy so I:

Checked and corrected the vac line routing...better.
Trimmed the ends off all the vac lines... better.
Adjusted the loose TPS...ah, much better!!
Title: Re: wont maintain steady idle?
Post by: kng254 on March 19, 2012, 07:22:11 PM: I was speaking to a guy at work about my car trouble. He suggested I unplug the electrical connection from my MAP sensor and if the car starts it means be that its bad.
Does this sound right?
Title: Re: wont maintain steady idle?
Post by: kng254 on March 21, 2012, 01:06:33 PM: Drove about 20miles with my MAP unplugged seemed to run better.

Does this mean new MAP will fix my idle woes?
Title: Re: wont maintain steady idle?
Post by: Rhinoman on March 21, 2012, 03:46:01 PM: In your first posst you said you have a MAP, do you have a MAP or a MAF?
Title: Re: wont maintain steady idle?
Post by: kng254 on March 21, 2012, 04:24:57 PM: MAF is at front of intake
MAP is out the back of intake comes off a small hose and mounts to firewall.
MAP is the one I disconnected.

When I looked at the sensor location sheet those are the names that went to the sensors.
Title: Re: wont maintain steady idle?
Post by: ranger88den on March 23, 2012, 01:40:54 PM: Do you have CEL on, or even a CEL light when the ignition switch is in the accesory mode (first increment prior to starter engagement)?
Title: Re: wont maintain steady idle?
Post by: kng254 on March 24, 2012, 06:00:57 AM: The ses light came on this morning. Put my reader on (basic one only reads and erase doesnt give info while driving ) it gave 6 codes
P1408,301,302 it gave the same 3 twice.
Did a search found out that 1408 is MDP circuit fault. Which also means map sensor fault. Fortunately I've already ordered a new map sensor it will be here monday.
Title: Re: wont maintain steady idle?
Post by: kng254 on March 27, 2012, 07:31:05 AM: swapped out the MAP sensor its still surging when i stop and it feels like its missing (it is missing it gave a miss code this morning) between 2000-3000 rpm.
when it warms up it runs a bit better.
i raised the idle so it wouldnt stall when i put it in reverse(doesnt always work)

dont know if it matters but when i have radio,headlights and heater blower on the revs bounce also.
Title: Re: wont maintain steady idle?
Post by: Drone637 on March 27, 2012, 03:24:42 PM: That sounds like you might have a grounding issue, if the number of electronics on affects things.
Title: Re: wont maintain steady idle?
Post by: kng254 on March 27, 2012, 07:35:41 PM: how do i chase a bad ground?
my left rear tail light never lasts more than a coupe of days i guess i start there.
Title: Re: wont maintain steady idle?
Post by: Drone637 on March 28, 2012, 12:09:59 AM: Just take off the ground wires, clean them up. Make sure you have a good ground cable going from your battery to the block and to the body.