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Author Topic: Cold mornings.  (Read 6071 times)

CROSSBOLT

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Re: Cold mornings.
« Reply #15 on: May 26, 2018, 07:28:23 PM »
Kymco analyzer tool will show these parameters. The heat should cycle on and off. I don'T know what the O2 sensor should do but it should have a varying voltage output .5 to 1.5 volts, I think....
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Karl

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Viper254

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Re: Cold mornings.
« Reply #16 on: May 26, 2018, 09:52:18 PM »
Would the heating element not working be the cause of the issue here? That's how I would think
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hypophthalmus

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Re: Cold mornings.
« Reply #17 on: May 26, 2018, 10:37:38 PM »
It would explain why it runs better once its warmed up, but indicate that something else is wrong.
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hypophthalmus

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Re: Cold mornings.
« Reply #18 on: May 26, 2018, 11:00:56 PM »
I think the first and easiest thing to do would be to measure the resistance of the coolant sensor terminals with the engine cold. The manual says at 40 degrees C it should be 1.136 Kohms. If the resistance lower than that, you know that's a problem.
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hypophthalmus

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Re: Cold mornings.
« Reply #19 on: May 26, 2018, 11:18:46 PM »
On second thought, what do you want to bet that the engine temperature in the dash doesn't get its information from the same sensor? Since it's not reading abnormally, that would suggest the sensor isn't the problem.
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kneeslider

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Re: Cold mornings.
« Reply #20 on: May 28, 2018, 06:56:11 AM »
Balls, I am further lost than where I started.
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CROSSBOLT

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Re: Cold mornings.
« Reply #21 on: May 28, 2018, 01:11:33 PM »
Two coolant sensors: 1. In radiator header tank to turn fan on & off, 2. One on engine. The sensor on the engine provides output to both the panel gauge and the ECU. It would seem logical to me if the panel display is working properly then the sensor is OK. That would leave the heater in the O2 sensor being open. What is the resistance on that thing for hot and cold? Anybody?
« Last Edit: May 28, 2018, 01:55:58 PM by CROSSBOLT »
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Karl

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Stig / Major Tom

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Re: Cold mornings.
« Reply #22 on: May 28, 2018, 09:02:20 PM »
68 thousand klicks
Valves checked since troubles started 6 months ago?
Stig
« Last Edit: May 29, 2018, 12:51:58 PM by Stig »
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kneeslider

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Re: Cold mornings.
« Reply #23 on: May 29, 2018, 10:00:37 AM »
Quote from: Stig on May 28, 2018, 09:02:20 PM
68 thousand klicks
Valves checked since troubles started 6 moths ago?
Stig
Valves never been checked.

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Viper254

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Re: Cold mornings.
« Reply #24 on: May 30, 2018, 07:57:02 AM »
valves adjustments should be checked as a starting point
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kneeslider

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Re: Cold mornings.
« Reply #25 on: May 31, 2018, 01:51:56 AM »
Quote from: Viper254 on May 30, 2018, 07:57:02 AM
valves adjustments should be checked as a starting point

er, okay but how does that relate to the symptoms that I am experiencing?
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Viper254

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Re: Cold mornings.
« Reply #26 on: May 31, 2018, 07:19:21 AM »
They can affect starting and cold running, although more often they have symptoms the other way around - difficulty starting a warm engine and problems with hot running.

It's a free thing to check - I always start with the free stuff :)
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kneeslider

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Re: Cold mornings.
« Reply #27 on: May 31, 2018, 07:24:29 AM »
Quote from: Viper254 on May 31, 2018, 07:19:21 AM
They can affect starting and cold running, although more often they have symptoms the other way around - difficulty starting a warm engine and problems with hot running.

It's a free thing to check - I always start with the free stuff :)

Not for me, it's something I don't know how to do myself.
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Viper254

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Re: Cold mornings.
« Reply #28 on: May 31, 2018, 01:25:07 PM »
Quote from: kneeslider on May 31, 2018, 07:24:29 AM
Not for me, it's something I don't know how to do myself.

In which case, ignore me :D
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kneeslider

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Re: Cold mornings.
« Reply #29 on: June 02, 2018, 07:25:57 AM »
Quote from: Viper254 on May 31, 2018, 01:25:07 PM
In which case, ignore me :D
Nah, that would just be rude.

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