hi suzuki gurus. just want to ask if it is normal to have 1500 RPM during cold start for about 3 minutes before going down to "800 or 1000" RPM? Will this 3 minute high rpm cause premature wear and tear on my engine? Newly cleaned IAC/ISC for my 98 sidekick G16B, 1.6, 16V, Philippines. Thanks in advance.
My Ride: 4 door Suzuki Vitara 98, Philippines, 16V,MPI G16B engine , 4 speed AT
Peculiar (and sorry for bit of hijack) but if this is happening to your car only during cold start up, and your warm idle is fine, then chances are this is the idle air valve on the throttle body that may be blocked up. You can carefully try cleaning it (and the port you see when the valve is pushed in). We have also learned that this idle air valve can be regulated somewhat by turning the metal ring on the front of the valve (inside the cover). Search the forum, as this was posted within the past month or so. I believe to raise the idle, you would turn this CCW. You would need to have the car off while doing this, turn the ring 1/4 turn CCW, then start the car and see if/how your cold idle is affected, and adjust accordingly.
12mpg??? Sounds like you are in limphome mode. Is your check engine light on with the key on and then off once the car starts? It must be.
Have you done any maintenance on the car? (timing/tune-up etc).
Your car should be getting at least 25mpg or so. Answer about the check engine light (or advise if it is on all the time). Basically, the computer puts the car into limphome when it is unable to read the signals from the various sensors - the computer then goes to a pre-defined set of values just to 'get you home'. Your car must be running horribly!!! Give more info.
(And thanks, Parkrat - your advice means then to reduce the IAC input, you must turn the ring clockwise....)
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.