Mechanics

READING CODES PO340 AND PO300

1998 Suzuki Sidekick • 15,300 miles

98 sidekick automatic 4x4 idle surges up and down when cold and levels off to a stall out after warm and runs rough and can not drive or it wont go fast enough.I replaced o2 sensors as it needed them for a good while, than the maf and after that a few days it started rough idle, my cat was not even a year old. Now I hear a rattle sound in it like something is bounceing around in it. When I rev the motor it revs good just wont idle right and in drive has no pick up just boggs. Thanks for any help you can spare. Mj
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Zuky
August 27, 2012.




Thanks, Think maybe the plug that connects to sensor? It was kinda oiled from pan, or just untape the sheild around it and start looking for bad spot?


Tiny
Zuky
Sep 12, 2012.
The wires end to end from the sensor to the pcm and see which wire it is. Use low scale resistance setting on your meter.


Saturntech9
Sep 12, 2012.
Please discard this spammer were working on getting rid of him.


Saturntech9
Sep 13, 2012.
Okay I found both wires at sensor plug were bare in same spot next to each other, I made new plug retested and everything is normal for ckp, the code lite went out for ckp and I took it for ride and reset cmp waited to see if ceck eng. Lite to come on and it did, its now reading the po505 code, idle is surging from 1200rpm to 2oo2 after warm up.


Tiny
Zuky
Sep 14, 2012.
I posted the trouble tree for code P0505 let me know what you find.
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Saturntech9
Sep 14, 2012.
I do not know where the IAC is. Got any pics? And where the ajusting screw is or FIA fast idle air valve.


Tiny
Zuky
Sep 14, 2012.
Iam sure you dont have a scan tool to see iac duty so I would leave that sure around.I posted a pic of the idle air control valve so I would start by removing it and cleaning it. Also clean the ports etc.


Saturntech9
Sep 14, 2012.
Thank you, Now I need to know where the idle air ajusting screw is because the trouble tree is wanting me to remove that screw and clean the port it screws into.


Tiny
Zuky
Sep 15, 2012.
So far I haven't found a diagram showing where that screw it is.


Saturntech9
Sep 15, 2012.
For this model there are no idle adjust screw as the idle speed is PCM controlled.


KHLow2008
Sep 15, 2012.

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