Thanks You Guys for the input & thank You Mark for the HeadsUp on

the Temp 1 Snsr ID ~ I've had Vanagons in My life for 29Yrs & for most of

those Yrs have IDd the Temp Gauge Snsr as Temp! probably due to it being

the nextdoor neighbor of the Temp 2 & I’ve never even considered that the

IATS had a Temp Snsr # ~ 

        I’ve always thought it strange that the Temp 2 Snsr is IDd as #2 since

it seems play the Most Important roll of the 3 as far as Engine Performance

is concerned ~ I've long felt that Temp2 should be Temp1, the IATS should

be Temp2 & the Gauge Sender/Sensor should be Temp3 ~

        So back to Original ? > What in the Temp3 Snsr connection would allow

it to send Good (& Norm OpTemp) Data to the Gauge while @ the same time

cause the LED to blink ~ I have accidentally created this condition twice on 1

friends Van & have another that is doing similar but have not gotten My hands

back on that 1 yet to try to see if the LED will stop blinking by making sure that

the connection is optimal ~

> On 24 Apr , 2022, at 12:25 AM, Mark Drillock <madvws@COX.NET> wrote:
> 
> The answer is that temp gauge led is first and foremost an "over
> temperature warning" led.
> 
> The coolant level warning aspect was added on later as a secondary
> function of the same led.
> 
> 
> Also the coolant gauge temp sender is absolutely NOT the Temp 1 sensor.
> 
> The Temp 1 sensor is in the AFM to tell the ECU the intake air temp.
> 
> 
> Mark
> 
> 
> 
> On 4/22/2022 1:06 PM, OlRivrRat wrote:
>>  ..........
>> 
>>         & part of question that I forgot to ask > Why would the Temp 1 Snsr have
>> 
>> any influence on the LowLevel LED ~