Question about 2005 Suzuki Grand Vitara

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99 Suzuki Grand Viara wont idle now I have replaced the battery

I had the same problem last time I replaced the battery and the guy who did it made an adjustment somehere and it was sorted. I have no idea what he did but the guy who replaced the battery this time does not know either and so when I stop a lights or stop sign the car does not idle and cuts out and I have to start up again. Any ideas?

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  • alanleeb2003 Jun 17, 2009

    Yeagh I recon so but where do I do that? Thanks for confirming it though.

  • Mobeen khan Oct 07, 2015

    How idle control valve on suzuki vitara j20 engine, anyone



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That is a normal thing if you have the 2.0 j20 engine. Just drive the car a few miles and the ecu will adjust the idle and fuel mixture back to normal...

Posted on Jan 19, 2016

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Wow we are asked to second guess your MECHanic, sux
does engine have full power on hills,(wow unstated)
no engine type stated, not even cylinder counts or displacement??????????????????????????
engines are options on most cars made,outside use
vast more choices.
G16? J20? or h25 v6? h27?
the 99 is not TBW throttle by wire so it does Not
need a learn mode for idle as TBW does.

the RPM is low, (not wrong ,it's low. SAY TOO LOW.)
wont idle means is stalls or near stalls.
The ecu controls idle, not you,not screw.
Its hard coded in the ECU, for sure. FSM says so read that?

SAY ITS STALLS. for best answers.
stalls 101:
has 2 causes,(in pure physics) (using 1 to 10 tools we find it)
1;gross misfire (50 causes) causes gross power loss.
2: ISC stuck closed, lean it? a good ISC cant cure#1

Hint there are other failure modes that cause the ECU to go to limphome, and takes off line the ISC
that too is a FaCT. STATED IN THE FSM

why do engines stalls there are 50, or more
why would any person type them.
i will do statics, (but in real world fate and entropy wins)

never once did a full 60k mile tuneup
wins the dah awards for 100 years running)
if engine is G16 the cam belt slipped for same reason above, and mech sees spark timing way off.
egr stuck open stalls engine.
lost compression on say 1 cylinder
bad spark. for any reasons.
injectors leaking. (or even dead one)
FPR bad.
o2 stuck at 0v ,and huge rich running and now fouled spark plugs
that is for stats.

Posted on Jan 21, 2016

  • Anonymous Jan 22, 2016

    fire him and get a real ASE mechanic.
    also id bet this old 99
    has more that one problem, as MOST DO.

  • Anonymous Jan 22, 2016

    no engine stated , no joy.....hopeless.


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Have a look at the Idle control valve(under the throttle assembly) it could be sticking clean with white spirit.

Posted on Mar 25, 2010

  • Anonymous Jan 22, 2016

    clean it with CRC cleaner safe for plastics
    never use spirits on sensors or actuators.
    ever. it wrecks plastics.


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Sounds like you need your idle speed adjusted.

Posted on Jun 17, 2009

  • Anonymous Jan 22, 2016

    its not adjustable , its computer control and regulated at all times.

  • Anonymous Jan 22, 2016

    take an efi course. please.


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