Abnormal idle when cold...Very cold! - Page 2 - ZX6R Forum
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post #16 of 25 Old 01-01-2017, 11:40 AM Thread Starter
MrZ
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Checked that hole with a piece of wire, it was clean, no signs of dirt or anything.

Today took the bike out. Started fine, idled fine.Rode for 20 mins and parked outside of a cafe.
2 hours later started the bike to get home. Not normal, idle was going up and down like the video i posted...

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post #17 of 25 Old 01-01-2017, 04:01 PM
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Pull the codes from the ECU. Might be TPS sensor, or another sensor going bad....
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post #18 of 25 Old 02-05-2017, 02:06 PM Thread Starter
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Update: I no longer have higher idle when bike is cold.Instead, it is lower than normal and approaches normal while engine builds some temp.
If i turn off the engine and try to start it up again, it fires and dies.If i give it some gas while pressing the start button, it starts and stays running.
Still NO FI light....

Quote:
Originally Posted by RJ2112 View Post
Pull the codes from the ECU. Might be TPS sensor, or another sensor going bad....
I've seen no FI blinking, could it still have codes?
Tomorrow weather goes bad again, if it is better next week i'll have to visit a shop.
I took the airbox out again, checked all hoses again, took the airbox apart and checked the filter, followed all the vacuum hoses back to the engine.
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post #19 of 25 Old 02-05-2017, 02:50 PM
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I'm a newbie when it comes to this bike.
That being said, sounds like the MAP or air flow sensor, some injected engines also have a air temp sensor.
The ECU adjusts for the air density and temp to tweak the fueling.
SO if checking to see the FSM to see if you have which or both sensors and if there is a way to test them.
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post #20 of 25 Old 02-06-2017, 12:40 PM
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My 03 does the same thing when cold. No idea why. I've just never really worried about it, but I'm curious.

I have an aftermarket exhaust and Power Commander. I can't remember if it did it before I put them on.

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Last edited by upland117; 02-06-2017 at 12:43 PM.
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post #21 of 25 Old 02-06-2017, 05:23 PM
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Throttle bodies out of sync?


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post #22 of 25 Old 04-12-2017, 03:01 PM Thread Starter
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Quote:
Originally Posted by PowerGroove View Post
Throttle bodies out of sync?
Did a throttle body sync recently, they were way out of spec...but this didn't cure the issue.

Well, i now have an FI appearing while riding, at random intervals.If i stop to check it, it goes away, if i give it some gas...it goes away.

I managed to read it at a stoplight. Code 62.

Googled it and many say : replace throttle body assembly.

Is there anything else i can check before doing this?I don't have the error on every ride and it goes away every time after 2-3 seconds.

Many issues lately, this bike is driving me nuts.I strongly believe it's the humidity in my area causing everything. Many bolts have turned white, even though bike is always under cover.
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post #23 of 25 Old 04-12-2017, 06:03 PM
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For winter storage,, put stabilzer in the tank..
FILL the tank to the brim..

Each time the temp cools down, the air in the tank contracts bringing in more MOIST air.
The ETHANOL (thanks tree huggers) loves moisture. Once it saturates water will condense out of the fuel. AND sink into the bottom of the tank.
Another fun fact the water can GROW funky stuff.

A full tank reduces the amount of air and mousture that can be sucked out air.
I still empty the tank beginning of the year and put fresh gas in the bike. It's old gas goes into the car. Just want to keep the rust out to the tank.
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post #24 of 25 Old 04-13-2017, 04:52 AM Thread Starter
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Quote:
Originally Posted by Indy View Post
For winter storage,, put stabilzer in the tank..
FILL the tank to the brim..

Each time the temp cools down, the air in the tank contracts bringing in more MOIST air.
The ETHANOL (thanks tree huggers) loves moisture. Once it saturates water will condense out of the fuel. AND sink into the bottom of the tank.
Another fun fact the water can GROW funky stuff.

A full tank reduces the amount of air and mousture that can be sucked out air.
I still empty the tank beginning of the year and put fresh gas in the bike. It's old gas goes into the car. Just want to keep the rust out to the tank.
I don't do winter storage, i ride all year long.
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post #25 of 25 Old 04-13-2017, 05:12 AM
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Z...

there is a troubleshooting step for evaluating the TPS. The resistance that you measure is supposed to change through a specific range, so the ECU knows how much you have twisted the throttle. I would do that, before you do anything else. Also do a really thorough inspection of the wire harness, and contacts in the plugs.

If that sensor is dirty, or the contacts to the wiring are dirty/corroded/worn.... you can get funky readings.

The actual potentiometer in the sensor assembly can also wear out. -- this is the part the troubleshooting guide can help identify.
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