I think my O2 sensor is gone...cause I suddenly noticed a drop in gas mileage. (I also notice the slow refresh rates when the car from movement comes to complete stop (idle), the O2 voltages sit at 0.9X for a few long seconds..HMMM.)
What O2 sensor should I get? An aftermarket one, ie BOSCH? Should I get one for the 420a or the 4G63 or are they same?
___________________________ l e o n 1995 Eagle Talon ESi-T Star Stage 2 Boost is GOOOOOOOD!
#4056, "RE: I think my O2 sensor is dead.." In response to Reply # 1
Well, since I just had to do this today, I guess I could offer some help...
I noticed that it was going bad when gas mileage was getting worse. What really tipped me off was when my A/F meter would never reach full rich at WOT and didn't cycle like it normally did during closed loop operation... kinda like it was out of calibration... Also, I had a Service Engine Soon, or CEL, come on. I went ahead and tried to switch out the A/F meter hoping that was the problem. Nope, so I had to go spend $120 bucks on a new O2 sensor from NAPA. It is a universal 4 wire and it is designed to use the factory harness... Took all of 20 minutes to get the job done. I tried the Mitsu Dealer and they wanted $170 for theirs. I also tried a Dodge dealer and the one from them is about $120. For the same damn part!!! Would have gotten the one from Dodge if they would have had it in stock.
The Bosch are good, but I don't know if they are universal or if they come with a harness to plug it right in...
I noticed a difference right away. I know I have been running real rich since the boost, but I guess it just slowly fouled the O2 sensor over time. Never really noticed the loss of power until today when it all came back... Now I know I have to invest in an AFC as soon as posible. Mostly cause they are kewl, but also cause these damn sensors are so damn expensive...
DoN
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#4057, "RE: I think my O2 sensor is dead.." In response to Reply # 2
Well my O2 sensor snapped off during the turbo install, so I had to buy a new one...it cost 93 dollars from a parts supplier nearby. Was a pain in the ass, but it is a really nice part just get a universal sensor for the 420a. a lot cheaper and works the same as from the dealer.
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(I also notice the slow refresh rates when the car from movement comes to complete stop (idle), the O2 voltages sit at 0.9X for a few long seconds..HMMM.)
just get a universal sensor for the 420a. a lot cheaper and works the same as from the dealer.
