more "running rich" questions...

[RysRed96GT]

is it possible for ONLY 1 bank to be rich? what could cause it?

im gonna head up tommorrow to get my CEL rescanned, im sure it's a P0175 again. so i'm gonna change the bank 2 O2 sensor...

 

[ChadS98GT]

subscribed

 

[RysRed96GT]

subscribed

same problem?

 

[mogs01gt]

Have you replaced the o2 sensors yet?

 

[BuffaloZone]

is it possible for ONLY 1 bank to be rich? what could cause it?

im gonna head up tommorrow to get my CEL rescanned, im sure it's a P0175 again. so i'm gonna change the bank 2 O2 sensor...

You have more than one Bank 2 sensor - which one are you changing? Being a "fuel" code, it's probably the front sensor. A catalyst code would refer to rear sensor or converter. But, for the "P0175" I've seen this more as strictly being a "fuel" problem - injectors or fuel pressure. You really need to test the fuel system and do a sensor pattern scan.

 

[RysRed96GT]

You have more than one Bank 2 sensor - which one are you changing? Being a "fuel" code, it's probably the front sensor. A catalyst code would refer to rear sensor or converter. But, for the "P0175" I've seen this more as strictly being a "fuel" problem - injectors or fuel pressure. You really need to test the fuel system and do a sensor pattern scan.

96 GT's have only 2 sensors, both right below the exhaust manifold flanges.

i doubt there's anything wrong with my fuel supply. when i did the heads, i removed the manifold with the injectors still on them, so i didnt change anything.

but if anything did happen, what should i check to see if i'm getting too much fuel pressure?

 

[RysRed96GT]

Have you replaced the o2 sensors yet?

nah. was going to yesterday but a big storm shut down the computers at autozone where i was gonna get my CEL scanned

 

[AquamanCHS]

96 GT's have only 2 sensors

Lies.

There's definately four, two upstream of the cats and two downstream. I just had my h-pipe off the car yesterday, trust me.

 

[RysRed96GT]

Lies.

There's definately four, two upstream of the cats and two downstream. I just had my h-pipe off the car yesterday, trust me.

i can only find 2 on mine...

are all 4 O2 sensors? or are they different sets?

 

[BuffaloZone]

96 GT's have only 2 sensors, both right below the exhaust manifold flanges.

i doubt there's anything wrong with my fuel supply. when i did the heads, i removed the manifold with the injectors still on them, so i didnt change anything.

but if anything did happen, what should i check to see if i'm getting too much fuel pressure?

The rears aren't F6ZF-9G444AA ? Well that's the ones I saw on a '97...

As for the fuel pressure. 35-40 PSI with "Key On - Engine Off" and 30-45 PSI with engine at idle.