Re: SML: maintainence questions on b12s

[NismoDriver]

For bad gas mileage and idle problems. Replace the O2, fuel filter and check 
MAF voltage (its built into the T/B). Also, check for a cracked vacuum line 
around the intake manifold. It caused bad idle problems on my GA16i. The O2 
sensor is in the middle of the exhaust manifold and facing up. You can get a 
replacement for it at any auto parts store.
                                    John
                        B12 Sentra w/ JDM SR20DE and lotsa other stuff..