Insanely rich and cold, 1 tank = 138k's

[bigborett]

Ok, it would seem that I have a minor fuelling problem all of the sudden.
Rode home from work last night and the motor was running below 80 deg.C and wasn't idling to nicely.
Today it is running colder, in the 60's. By the time I got home it would hardly run, plugs probably deteriating rapidly, and the fuel light came on after only 138k's.
I haven't attacked it yet but thought I might get a few ideas first or during.
I'm thinking stuck injector or maybe crank or cam sensor, I'm about to look for codes now.
I have doubled this post up in the other forum. I want to get this sorted quickly and not stuff around.

[bigborett]

No FI code.

[gaztl1000r]

Mine runs cooler with my pc2 connected,suggesting it's rich, has yours been set up yet since exhaust?
Also what fuel are you using
E5 unleaded gives less mpg and with the ethanol may run cooler

Or is it you're staring to show effects of the ethanol in the fuel damaging seals in the injectors??

That'll get people goin, lol

Sorry but it's all I've got at moment, other than thermostat stuck open

[bigborett]

Thanks Gaz. I don't use E anything, we still have the choice here.
I'm thinking thermostat. Pain in the arse.

[gaztl1000r]

It is with it being the weekend,
You might stand a chance of getting the daihatsu or nissin stat
I think they were 2 that were mentioned in the thermostat mod thread

[bigborett]

Just tested the thermostat against another I had, both 82deg.C. It may be opening a nats whisker earlier than the old one, hard to tell, its very close and I haven't got a 100deg.C thermometer.

[The Ring-In]

hunt around and get a 92C thermo.

the motor runs on the cold start map up to 80C give or take so it'll run like crap.

check you have the correct wire on the correct sensosr too

you can swap the air and water temp.

green to green grey to grey .

[bigborett]

The problem has only occured in the last couple of days. I've done a couple of thousand k's since the rebuild.
Something has changed for it to suddenly do this.
Was running fine at about 82-83, although I must agree that I would prefer it a little warmer, and getting up to 220-230k's before the light came on.
Any more thoughts? I'll be looking at injectors next.

[The Ring-In]

there is an auto thermo at 92

I have one

just had to grind a peg out of the housing wher it fouled.

if you dont have one already get a housing with the sensor in it not in the left tank of the rad.

[bigborett]

Already in the housing.
Just checked the sensor and it seems fairly close with my crudish testing. But it doesn't have to be far out with an 82 thermo.