help with rough idle, bad fuel trims. o2 sensor???

[coryf1233]

my Car has recently began to idle a little rough and bog out on hot starts. i ensured the FPR solenoid was hooked up. When i hook my logger up, the o2 voltage is stuck at .08 and the o2 trim is at 100 percent. My fuel trims are all 3 stuck at 138 and barely move. My idle sounds like its missing. The car idles this way with or without the o2 sensor plugged in. Could this be a bad o2 sensor??


Also when I listen closely to the FPR solenoid I can hear air, I cant tell if its a leak or the vacuum traveling through. Anyone shed light on this?


Thanks in advance





Completely different topic, what o2 housing is this

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[gofer]

If the front o2 sensor isn't cycling after the cars warmed up then the ECU will lock itself in open loop and idle like ass. That is a 2g o2 sensor housing, a better question is what brand of o2 sensor is that?

 

[coryf1233]

yeah it idles wierd. would the fuel trims look lean because they are pulling fuel trying to correct a rich mixture. I dont know what o2 sensor that is. bought the car with it

 

[gofer]

yeah it idles wierd. would the fuel trims look lean because they are pulling fuel trying to correct a rich mixture. I dont know what o2 sensor that is. bought the car with it

Its stuck at .08 which is LEAN so thats what the ECU is seeing ALL the time. I suggest getting a Denso o2 from o2sensors.com, they run sweet deals.

 

[jdm98gsx]

Try changing out that o2 and hopefully it will solve your issue.