20vq questions

[Robert Myers]

Posted for a former q-list member:

Hi Bob

is there any chance you could post this on the q list for me???

I have got some issues with my 1990 90 20vq, basically when at a constant 
80 mph or above the temperature drops right off, round town it sits at 90 
degs at 80 or so it drops down to half that. I have fitted a new thermostat 
with no change and also the multi function temp sender as well. Needless to 
say my gas mileage is appalling like 22-23 mpg which it never used to be.

The car performs fine BTW.

I changed last April the O2 sensor, air filter is clean, i don't have cat 
converter (gone long ago),plugs are fairly new as is rotor and dist cap.

On another note would a failing ISV (Bosch type) have any effect in all of 
this and also would a change of coolant bottle cap make any difference, i 
really am clutching at straws now!!!

TIA

Iain


Bob
Random Bushism: "For every fatal shooting, there were roughly three 
non-fatal shootings. And, folks, this is unacceptable in America. It's just 
unacceptable. And we're going to do something about it." George W. Bush, 
May 14, 2001
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Robert Myers
Fayetteville
'95 urS6 - Cashmere Grey
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