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cel came up code 132...o2sensor .put in new denso o2...drove 5miles code returned...put in bosch o2....cleared cel drove 5 miles ...cel back on. whats my next step...thank you...2003 -5speed-se-105k on od

pdexta

iTrader: (17)

Which O2 sensor are you replacing? Looks like that code is for the front one, closest to the engine. This probably isn't the best place for OBDII advise, most of us replaced the ECU and threw that sensor away.

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replaced the front o2...as per code....tried 2 different new ones bosch and denso...same results...reset cel drive 5 miles cel goes back on..no other codes present...gas mileage very poor..breaks up at 4500-5000 rpms...help

olderguy

iTrader: (19)

Sounds like there is a break in the wiring going back to the ECU.

pdexta

iTrader: (17)

Given that info I have to wonder if you have an "air:fuel problem" rather than an "air:fuel sensor problem". Do the spark plugs all look the same? Do they look black? There isn't a whole lot that can make the car dump too much fuel. Can a fpr fail closed so the pressure goes crazy?

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scott thanx for your help...ill check all the plugs...they are new less than 500 miles on them..nkg...what is the fpr?..thank you

pdexta

iTrader: (17)

The fuel pressure regulator, it's in the gas tank on NB's. The fuel pump flows enough for +100psi and the pressure regulator bleeds off excess pressure so you maintain a constant ~60psi. I've had an o-ring blow on one so it leaked and wouldn't maintain enough fuel pressure so the car run crazy lean. Not sure if it would fail so it increases fuel pressure, but I couldn't think of a whole lot of other reasons you'd be dumping that much gas.

boards

scott....thank you...ill check if fuel pressure is at 60 psi...thanx