The 2001 GS is running pretty good and I could leave well enough alone ... but who does that?
Certainly not you!
And once again, the knowledge on this forum never ceases to amaze me.
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The 2001 GS is running pretty good and I could leave well enough alone ... but who does that?
Good questions.
First, you may or may not see the error return, and it is unlikely that it is at all serious. For the R1100 and R1150 series, all this is is an exception that is noted by the Motronic (if it stays low permanently then the Motronic will cease Close Loop operation). The cause of O2-low-errors is that the Motronic sees its O2 input voltage staying below 400 mV when it is supposed to be in Closed Loop operation. There are a few causes.
1) For the Oilhead, with or without an LC-2 or AF-XIED, you can get this error if: a) the O2 sensor is weak or defective, or b) if fuel pressure is low, often caused by a leaking in-tank hose. These errors often recur.
2) When your bike uses an AF-XIED, the O2 sensor is forced to work in the 800 mV range (as opposed to the 450 mV range). As an O2 sensor ages, it can have trouble getting to higher voltages, with the result being that the AF-XIED output stays below 450 mV, which will trigger an O2 error. You can either replace your O2 sensor or drop down a setting or two on the AF-XIED.
Had I read this thread more closely I probably would have seen the FIVE posts telling me NOT to solder the wires! Did I render my new O2 sensor inoperative? Could I go back in and attach the 'T' 'Posi-Lock to the White (pin#4) to the Red lead from the universal harness ? What could I do to restore the 'breathing through the cable' and allow air to seep into the sensor? Got any suggestions? Thanks.
Yes, I can cut out the soldered connections and install the (previously provided) Posi-Locks. The length of wire on the 'universal' model of the AF-XiED for my '99' R1100RT was quite sufficient! Thank you Reto for your response to my post.
While many (not all) fluxes are corrosive over time, you can easily wash it off with a small tissue wetted with alcohol.
The brush loosens it, low pressure compressed air is next.The goal is to pick up the flux, not just dilute it and spread it around. A tissue (or multiple Q-Tips) will do that.
Dang, we were taught differently, so I'll show how anally OCD I can be...
Note that NASA doesn't typically launch motorcycles...
From the Student Workbook for NASA Standard 8739.3
"Clean the lead with a soft brush, using the approved solvent and a shopwipe."
We were taught to lightly wet our acid brush in alcohol, then lay a Kim-Wipe (a lint-free tissue) on the flux and apply the wet brush to it; a slight scrub would wick up the flux.
From NASA-STD-8739.3
10.4 Solder Cleaning 10.4.1 Interim Cleaning.
Residues shall be removed during interim cleaning within 1/2 hour after soldering by applying an approved solvent as specified in paragraph 6.13 (Requirement). Solvents shall be applied in a manner that will minimize wicking of the solvent under conductor insulation and prevent its entry into the interior of parts (Requirement).
10.4.2 Final Cleaning. Mechanical means such as agitation or brushing may be used in conjunction with the solvents. The cleaning solvents and methods used shall have no deleterious affect on the parts, connections, or materials being cleaned (Requirement). Ultrasonic cleaning shall not be used for cleaning assemblies that contain electronic parts (Requirement). After cleaning, there shall be no visible evidence of flux residue or other contamination when examined (Requirement). PWA cleanliness shall be verified in accordance with Chapter 14 (Requirement).
From Chapter 13.6, Inspection Criteria
13.6.2 Rejection Criteria
a. Conductors and Parts:
(9) Flux residue or other contaminants.
b. Solder Connections
(8) Splattering of flux or solder on adjacent areas.
(9) Rosin solder joint.