Running to rich

[Epixstar]

what chould it be so i can narrow it down

[gomer]

O2 sensor ,,, clogged air filter ,, bad float if carbed ,, fuel pressure if FI (most Bosch systems run rich with LOW pressure ,, most others rich with HIGH pressure) ,,, coolant sensor sticking FI in rich warmup loop...

[Epixstar]

the air filter is fine an d what sensor should i check first the o2 sensor

[gomer]

If the O2 sensor is original I'd change it since 130K is beyond it's useful life ... the temp sensor may be bad even though your dash guage reads OK ,, there is usually a seperate sensor that feeds data to the 'puter ,, I don't have a Festiva to look at to confirm though... the O2 sensor will be about $20 ,, the temp sensor will be about $5 ...

[darkdan]

Temp sensor on my aspire is on the left side of the intake manifold I think.

Careful when installing the new one. My old one was steel, the new one was copper....I broke three of them. It takes about 5 ft/lbs to break one.

[Epixstar]

which temp sensor the one on the radiator or the one on the intake

[gomer]

I don't have a Festiva to look at to confirm... the temp sensor will be about $5 ...

Which Sensor?

Just buy one at the auto parts store ,, ask for the one that connects to the computer... whatever one they give you change that one...

[Epixstar]

there are two of them and they have to order them so i have to get it right the first time

[Epixstar]

there is a wire that was broken off below what looks like the starter and i followed it and it look like it was on the bottom of the engine kinda close to the CV joint what chould this senor be and whould wire disconected be that big of a problem

[gdawgs]

Is it a little plug that goes into the front side of the tranny?
That ones the reverse lights switch.
Could also be a pickup sensor for cruise control.

[Epixstar]

i have no clue what it is other than its there and i dont think its major