Tode are you sure you got a Genuine Bosch pump?

unless Joe sells fakers

I am getting the P0171 code (engine too lean: bank 1 - fuel trim malfunction)

http://forums.nasioc.com/forums/show...ighlight=P0171

This code has been there from when the SARDS got put in. It is not a "current" trouble code - rarther than a "historic" trouble code. This is being read with my OBD cable and ecuexplorer.

Reading the above nasioc report, either my 02 sensor is gone dodge since i run no cats, or quite possibly the afm is on its way out - which could explain what is happening.

Anyone willing to borrow me a afm meter ?

ps* i used to get the 02 sensor CEL ages ago but that has nevr come back for some reason...

ive had the 02 sensor go on me and it seems to surge just in the 2-3k REV range other then that its fine

The pump is a genuine Bosch, and I have no problem sending it back if it IS a faulty pump, because there is a 12 month warranty on manufacturing defects or malfunctions

Also, by the looks of it, your fuel pump install seems to be correct this time, with the sock in the right position, etc.

Tode, I have one you can borrow. Call me if you wanna come and grab it.

yeh joe, i'l come get it.
reading the thread - i think I may have a blown 02 sensor (in the headers). Anyway of checking this for sure?
Where can I get another sensor from other than subaru ?

I can get aftermarket O2 sensors for pretty cheap, but I'm not sure how well they'd work on your car. Best off getting genuine, if it is the problem.

Give Regents Subaru a call.

cars are a pain in the assss

Does the front o2 sensor fall to zero when you get out of closed loop mode?

Does it register any voltage at all during cruise?

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